https://www.jk-sci.com/products/s57c4x-111844 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_5eb4d533-bb7f-4cc4-a499-8403565276bf.png?v=1791383909 Avanafil Impurity 44, 99.50% Avanafil Impurity 44|C4X-111844 https://www.jk-sci.com/products/s57c4x-11171 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fe04d9df7652ef556b982a1ba0819bb4.jpg?v=1791383979 Gefitinib Impurity 1, 99.60% | 1502829-45-9 Gefitinib Impurity 1|C4X-11171|1502829-45-9 https://www.jk-sci.com/products/s57c4x-111895 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bcfec0a455d54ceea436f112b003c408.jpg?v=1791383872 (R)-Ethyl pyrrolidine-2-carboxylate hydrochloride, 95.40% | 131477-20-8 (R)-Ethyl pyrrolidine-2-carboxylate hydrochloride|C4X-111895|131477-20-8 https://www.jk-sci.com/products/s57c4x-111855 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/152697_6b209f14-9f82-45b7-ba96-9adec443362d.png?v=1791383904 Avanafil Impurity 55, 98.80% | 5909-24-0 Avanafil Impurity 55|C4X-111855|5909-24-0 https://www.jk-sci.com/products/s57c4x-1112104 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/130268_e42999b4-72e0-4762-abc0-7796e6660bcb.png?v=1791384091 Esomeprazole Sodium, 98.40% | 161796-78-7 Esomeprazole Sodium|C4X-1112104|161796-78-7 https://www.jk-sci.com/products/s57c4x-1118109 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_91e9eecb-c287-4591-9a81-52eb60d6f7e4.png?v=1791383942 Avanafil Impurity 109, 97.40% Avanafil Impurity 109|C4X-1118109 https://www.jk-sci.com/products/s57c4x-111822 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e90450babec86ca0cf78c3388646cb90.jpg?v=1791383922 Avanafil Impurity 22, Purity: 96.0% | 2250242-48-7 Avanafil Impurity 22|C4X-111822|2250242-48-7 https://www.jk-sci.com/products/s57c4x-1118102 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c085175c1df6dc0b5780644e0f6ac2bd.jpg?v=1791383949 Avanafil Impurity 102 DiHCl, 87.40% | 73706-74-8 Avanafil Impurity 102 DiHCl|C4X-1118102|73706-74-8 https://www.jk-sci.com/products/s57c4x-1112133 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_5287bc48-82fe-41dd-8bdd-2fd9d19aadce.png?v=1791384075 Esomeprazole impurity 133, 98.80% Esomeprazole impurity 133|C4X-1112133 https://www.jk-sci.com/products/s57c4x-11127 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/790605_3b5ba42f-35e1-4f46-91d1-dfa165b6630f.png?v=1791384043 Omeprazole EP Impurity I, 99.90% | 158812-85-2 Omeprazole EP Impurity I|C4X-11127|158812-85-2 https://www.jk-sci.com/products/s57c4x-111887 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b7ee347c61ebc4136d62148cd665f887.jpg?v=1791383879 Avanafil Impurity 87, 98.10% | 874482-97-0 Avanafil Impurity 87|C4X-111887|874482-97-0 https://www.jk-sci.com/products/s57c4x-1118 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1004157_bf2e565a-8996-464a-929d-e22eed34657f.png?v=1791383957 Avanafil, 98.80% | 330784-47-9 Avanafil|C4X-1118|330784-47-9 https://www.jk-sci.com/products/s57c4x-1119 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/37f5178ed8e620437025857be9e8a1c4.jpg?v=1791383864 Ivabradine HCl, 94.90% | 148849-67-6 Ivabradine HCl|C4X-1119|148849-67-6 https://www.jk-sci.com/products/s57c4x-111813 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d2cd1605fa26f334f0eb87a6ad07c894.jpg?v=1791383930 Avanafil Impurity 13, 91.40% | 330785-99-4 Avanafil Impurity 13|C4X-111813|330785-99-4 https://www.jk-sci.com/products/s57c4x-111318 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/76f05d8c924f832f9cc516ebbf33c455.jpg?v=1791384027 Lansoprazole Impurity 18, 95.00% | 1083100-26-8 Lansoprazole Impurity 18|C4X-111318|1083100-26-8 https://www.jk-sci.com/products/s57c4x-111345 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a670703262e1e054deedd28f1f173777.jpg?v=1791384008 Lansoprazole Impurity 45, Purity: 99.9% | 103577-61-3 Lansoprazole Impurity 45|C4X-111345|103577-61-3 https://www.jk-sci.com/products/s57c4x-111944 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/831543_c5e5189b-8d7c-4ab4-9726-0df086a9a650.png?v=1791383855 Ivabradine Impurity 44, 98.70% | 866783-13-3 Ivabradine Impurity 44|C4X-111944|866783-13-3 https://www.jk-sci.com/products/s57c4x-112016 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3591a0cc1662d777cc871600d5c2e11c.jpg?v=1791383849 Dehydro Rac-Benidipine, 98.10% | 121138-34-9 Dehydro Rac-Benidipine|C4X-112016|121138-34-9 https://www.jk-sci.com/products/s57c4x-112210 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/383aa7ad78aa9cd1eb231410fe5ba2d1.jpg?v=1791383790 Everolimus-d4, Purity>95% | 1338452-54-2 Everolimus-d4|C4X-112210|1338452-54-2 https://www.jk-sci.com/products/s57c4x-112141 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/500041_f76e861a-3a1d-48c0-b491-488d79f8eed8.png?v=1791383802 Rabeprazole Impurity 41, 94.80% | 117977-18-1 Rabeprazole Impurity 41|C4X-112141|117977-18-1 https://www.jk-sci.com/products/s57c4x-112119 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/137226_243453a5-5ec9-4458-b5d4-3030601069f7.png?v=1791383816 Rabeprazole EP Impurity G, 98.30% | 102804-82-0 Rabeprazole EP Impurity G|C4X-112119|102804-82-0 https://www.jk-sci.com/products/s57c4x-11213 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/269260_727cf176-4cd7-41fb-82d5-674db13ba70d.png?v=1791383806 Rabeprazole EP Impurity A, 98.20% | 117976-47-3 Rabeprazole EP Impurity A|C4X-11213|117976-47-3 https://www.jk-sci.com/products/s57c4x-112028 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/75d9feb4008f8a3d63d8fe29f1ae6405.jpg?v=1791383841 Benidipine Impurity 28(Mixture of Diastereomers), 95.50% | 121138-43-0 Benidipine Impurity 28(Mixture of Diastereomers)|C4X-112028|121138-43-0 https://www.jk-sci.com/products/s57c4x-112042 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_7ae27ef8-73a0-4b3e-8059-6a4386db176c.png?v=1791383828 (3R,4'S)-Benidipine HCl, Purity: 96.9% (3R,4'S)-Benidipine HCl|C4X-112042 https://www.jk-sci.com/products/s57c4x-11208 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_25732a34-dcb5-413e-b35c-ee0fba0f8703.png?v=1791383822 Benidipine Impurity 8, Purity: 96.3% Benidipine Impurity 8|C4X-11208 https://www.jk-sci.com/products/s57c4x-11231 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dd93076ce90a364b5b73543a97a94cd2.jpg?v=1791383780 Canagliflozin Impurity 1, 97.20% | 1589590-87-3 Canagliflozin Impurity 1|C4X-11231|1589590-87-3 https://www.jk-sci.com/products/s57c4x-112327 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/826ea588b3ede994bf1419a2605a03d1_87e6dc7c-48e1-400f-be76-7289cce67b48.jpg?v=1791383773 Canagliflozin Impurity 27, Purity: 97.4% | 898566-17-1 Canagliflozin Impurity 27|C4X-112327|898566-17-1 https://www.jk-sci.com/products/s57c4x-1124 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1021490_289a335c-8b26-43ba-bc1c-5f73457c2a63.png?v=1791383764 Sorafenib Tosylate, 97.70% | 475207-59-1 Sorafenib Tosylate|C4X-1124|475207-59-1 https://www.jk-sci.com/products/s57c4x-112558 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/451a640b608a009b59e643332ab7c6cc.jpg?v=1791383698 Palbociclib Impurity 58, Purity: 98.7% | 2231085-26-8 Palbociclib Impurity 58|C4X-112558|2231085-26-8 https://www.jk-sci.com/products/s57c4x-11248 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8f07acc7dc567788dc807ef80ce5a6bc.jpg?v=1791383727 Sorafenib Impurity 8, Purity: 99.9% | 1431697-81-2 Sorafenib Impurity 8|C4X-11248|1431697-81-2 https://www.jk-sci.com/products/s57c4x-112518 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/60f285f245560d596cab89dfc2b24c80.jpg?v=1791383714 Palbociclib Impurity 18, 89.40% | 571189-65-6 Palbociclib Impurity 18|C4X-112518|571189-65-6 https://www.jk-sci.com/products/s57c4x-112455 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/402611_da18459f-e1f8-49dc-8f62-8b7c55a8c05a.png?v=1791383740 Sorafenib Impurity 55 HCl, 97.90% | 176977-85-8 Sorafenib Impurity 55 HCl|C4X-112455|176977-85-8 https://www.jk-sci.com/products/s57c4x-112442 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_778f4f34-1652-4091-8b76-d7cf906759ec.png?v=1791383753 Sorafenib Impurity 42, Purity: 96.6% Sorafenib Impurity 42|C4X-112442 https://www.jk-sci.com/products/s57c4x-112528 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3e3737817799802ccb7df247ddab4be5_eb03c245-45e0-4120-b936-f5062f9bf5bf.jpg?v=1791383709 Palbociclib Impurity 28, 99.90% | 571188-59-5 Palbociclib Impurity 28|C4X-112528|571188-59-5 https://www.jk-sci.com/products/s57c4x-112596 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/83bcb178bfc96ed67adf3b9545d81de7.jpg?v=1791383691 Palbociclib Impurity 96, 99.90% | 1013916-37-4 Palbociclib Impurity 96|C4X-112596|1013916-37-4 https://www.jk-sci.com/products/s57c4x-11281 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/547633.png?v=1791383662 Sildenafil Impurity 1, 98.80% | 42926-52-3 Sildenafil Impurity 1|C4X-11281|42926-52-3 https://www.jk-sci.com/products/s57c4x-112716 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/208125.png?v=1791383668 2,6-Di-tert-butyl-4-ethylphenol, 98.70% | 4130-42-1 2,6-Di-tert-butyl-4-ethylphenol|C4X-112716|4130-42-1 https://www.jk-sci.com/products/s57c4x-112610 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/438761_cb6efa0a-3f14-4ab2-933c-f3f2d24b7a69.png?v=1791383686 Nicotinic Acid-d4, Purity>95% | 66148-15-0 Nicotinic Acid-d4|C4X-112610|66148-15-0 https://www.jk-sci.com/products/s57c4x-11269 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/548908.png?v=1791383676 Nicotinic Acid EP Impurity I, 92.50% | 940-06-7 Nicotinic Acid EP Impurity I|C4X-11269|940-06-7 https://www.jk-sci.com/products/s57c4x-11264 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/134005_4e9f4ebc-85fa-4e1f-a9c6-d202e4c922e5.png?v=1791383675 Nicotinic Acid EP Impurity D, 100.00% | 100-26-5 Nicotinic Acid EP Impurity D|C4X-11264|100-26-5 https://www.jk-sci.com/products/s57c4x-112813 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e401be12df8851e94762c2590704577e.jpg?v=1791383661 Sildenafil EP Impurity A, 97.40% | 1391053-95-4 Sildenafil EP Impurity A|C4X-112813|1391053-95-4 https://www.jk-sci.com/products/s57c4x-112816 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/277cc38417e14fc139c839d1ea7dd633.jpg?v=1791383657 Sildenafil Impurity 16, 98.00% | 1971915-89-5 Sildenafil Impurity 16|C4X-112816|1971915-89-5 https://www.jk-sci.com/products/s57c4x-112818 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/987cd444559787676deddbdbe7f40425.jpg?v=1791383652 Sildenafil EP Impurity C, 90.40% | 139755-91-2 Sildenafil EP Impurity C|C4X-112818|139755-91-2 https://www.jk-sci.com/products/s57c4x-1128244 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_85391444-139f-483e-960d-6b0abd3a8370.png?v=1791383649 Sildenafil Impurity 244, 92.50% Sildenafil Impurity 244|C4X-1128244 https://www.jk-sci.com/products/s57c4x-112820 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2eb448a7f794a3a9d690512af72adea3.jpg?v=1791383647 Sildenafil EP Impurity D, 90.80% | 1357931-55-5 Sildenafil EP Impurity D|C4X-112820|1357931-55-5 https://www.jk-sci.com/products/s57c4x-112827 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/402454cef70bc3a0cb0dcf2397998b21.jpg?v=1791383636 Sildenafil Impurity 27, 91.90% | 372089-76-4 Sildenafil Impurity 27|C4X-112827|372089-76-4 https://www.jk-sci.com/products/s57c4x-112835 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/239704.png?v=1791383626 Sildenafil Impurity 35, 99.80% | 139756-01-7 Sildenafil Impurity 35|C4X-112835|139756-01-7 https://www.jk-sci.com/products/s57c4x-1128246 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/598bd3c21d17b9cbd1cf575f1a5ed4a9.jpg?v=1791383638 Sildenafil Impurity 246, 98.80% | 1786437-29-3 Sildenafil Impurity 246|C4X-1128246|1786437-29-3 https://www.jk-sci.com/products/s57c4x-11287 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7ea7892055024b8e3207c31702270514.jpg?v=1791383616 Sildenafil Impurity 7, 96.40% | 139756-22-2 Sildenafil Impurity 7|C4X-11287|139756-22-2 https://www.jk-sci.com/products/s57c4x-112895 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_9b0f0eb5-af41-407b-bfab-6bf1f2cf7191.png?v=1791383603 Sildenafil Impurity 95, 97.60% Sildenafil Impurity 95|C4X-112895 https://www.jk-sci.com/products/s57c4x-112837 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/408427.png?v=1791383624 Sildenafil Impurity 37, Purity: 97.6% | 139755-99-0 Sildenafil Impurity 37|C4X-112837|139755-99-0 https://www.jk-sci.com/products/s57c4x-112858 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/453788.png?v=1791383618 Sildenafil Impurity 58, 92.80% | 383427-88-1 Sildenafil Impurity 58|C4X-112858|383427-88-1 https://www.jk-sci.com/products/s57c4x-112913 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d49c1fc7eb814cab705f247604ed696b.jpg?v=1791383600 Arbidol Impurity 13, 97.40% | 40945-79-7 Arbidol Impurity 13|C4X-112913|40945-79-7 https://www.jk-sci.com/products/s57c4x-112892 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_1f086ce3-a7e5-422b-9981-1ad68d7e4f7f.png?v=1791383607 Sildenafil Impurity 92, 99.40% Sildenafil Impurity 92|C4X-112892 https://www.jk-sci.com/products/s57c4x-112874 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/421783_a95ba420-13ff-4e9c-a697-acfbca751d5e.png?v=1791383611 Sildenafil Impurity 74, 99.90% | 1643-19-2 Sildenafil Impurity 74|C4X-112874|1643-19-2 https://www.jk-sci.com/products/s57c4x-112940 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0bdd95541f285c6ceeae7c2b6a378672.jpg?v=1791383579 Arbidol Impurity 40, 98.20% | 1106670-97-6 Arbidol Impurity 40|C4X-112940|1106670-97-6 https://www.jk-sci.com/products/s57c4x-11293 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/41a2b57fe1bec80a9b339bab7d48b21d.jpg?v=1791383590 Arbidol Impurity 3, 93.40% | 153633-10-4 Arbidol Impurity 3|C4X-11293|153633-10-4 https://www.jk-sci.com/products/s57c4x-112937 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_ad319f45-8530-4f05-9410-0bda1c2dbcff.png?v=1791383584 Arbidol Impurity 37, 97.80% Arbidol Impurity 37|C4X-112937 https://www.jk-sci.com/products/s57c4x-112935 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_67d9b489-c572-487b-bdba-9ad52a617f9e.png?v=1791383589 Arbidol Impurity 35, 95.30% Arbidol Impurity 35|C4X-112935 https://www.jk-sci.com/products/s57c4x-112921 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/45412b59508d00442f8da5a3d4a46f37.jpg?v=1791383598 Arbidol Impurity 21, 87.80% | 25900-97-4 Arbidol Impurity 21|C4X-112921|25900-97-4 https://www.jk-sci.com/products/s57c4x-112942 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b425d918b4767616fcd555b2e7c48820.jpg?v=1791383579 Arbidol Impurity 42, 90.00% | 153633-14-8 Arbidol Impurity 42|C4X-112942|153633-14-8 https://www.jk-sci.com/products/s57c4x-1130 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cd7eaad0f882b5f82ba8f8aab03b03ee.jpg?v=1791383569 Ilaprazole, 95.80% | 172152-36-2 Ilaprazole|C4X-1130|172152-36-2 https://www.jk-sci.com/products/s57c4x-11296 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/915b797af21a3f537e95223e6786f141.jpg?v=1791383573 Arbidol Sulfone, 99.40% | 151455-32-2 Arbidol Sulfone|C4X-11296|151455-32-2 https://www.jk-sci.com/products/s57c4x-113010 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/611970.png?v=1791383565 Ilaprazole Impurity 10, 99.60% | 2818-66-8 Ilaprazole Impurity 10|C4X-113010|2818-66-8 https://www.jk-sci.com/products/s57c4x-1130156 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_ed856dc4-df00-4ba5-aa12-249f9230c295.png?v=1791383560 Ilaprazole Impurity 156, 93.10% Ilaprazole Impurity 156|C4X-1130156 https://www.jk-sci.com/products/s57c4x-1130170 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_99299461-16c0-4b7a-9fe7-84185611b52a.png?v=1791383559 Ilaprazole Impurity 170, 98.60% Ilaprazole Impurity 170|C4X-1130170 https://www.jk-sci.com/products/s57c4x-113018 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2e327ddbb663a6632b72b994277839ed.jpg?v=1791383555 Ilaprazole Impurity 19, 99.50% | 1360824-56-1 Ilaprazole Impurity 19|C4X-113018|1360824-56-1 https://www.jk-sci.com/products/s57c4x-11302 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5ead87ec4a504539bc7386de094d3ab0.jpg?v=1791383549 Ilaprazole Impurity 2, 99.50% | 1360824-55-0 Ilaprazole Impurity 2|C4X-11302|1360824-55-0 https://www.jk-sci.com/products/s57c4x-1130200 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_9cc56921-09a6-4a96-95dd-c796876bb426.png?v=1791383542 Ilaprazole impurity 200, 90.50% Ilaprazole impurity 200|C4X-1130200 https://www.jk-sci.com/products/s57c4x-1130188 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_3bf78f75-29c7-4c88-a2f6-ac13585eda7b.png?v=1791383550 Ilaprazole impurity 188, 83.70% Ilaprazole impurity 188|C4X-1130188 https://www.jk-sci.com/products/j5304415 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/053879ac70b4d274694a89d95a78345c.jpg?v=1791418362 Nw-(2,2,5,7,8-Pentamethylchroman-6-sulfonyl)-D-arginine | 191869-60-0 Nw-(2,2,5,7,8-Pentamethylchroman-6-sulfonyl)-D-arginine|04415|191869-60-0 https://www.jk-sci.com/products/j5304550 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4c96d28166349762822ad6c39d5a620f.jpg?v=1791418251 Glycine b-naphthylamide hydrochloride, Assay ≥ 98.5% (Nth : 11.83% Elemental analysis) || Titration ≥ 99.5% (Chloride c | 1208-12-4 Glycine b-naphthylamide hydrochloride|04550|1208-12-4 https://www.jk-sci.com/products/s57c4x-113022 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_fd315aea-21c2-4165-ba3c-a8e81c7ad437.png?v=1791383540 Ilaprazole Impurity 22, 92.30% Ilaprazole Impurity 22|C4X-113022 https://www.jk-sci.com/products/s57c4x-113029 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_faf1b706-5bed-44bb-aecb-15cbf712cb2d.png?v=1791383537 Ilaprazole Impurity 29, Purity: 95.5% Ilaprazole Impurity 29|C4X-113029 https://www.jk-sci.com/products/s57c4x-113032 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/db4d32954f03f559dbfae4631d724e04.jpg?v=1791383531 Ilaprazole Impurity 32, 98.70% | 2285346-39-4 Ilaprazole Impurity 32|C4X-113032|2285346-39-4 https://www.jk-sci.com/products/s57c4x-113030 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_32fb1ff1-c1d4-4dba-8787-da4dec156bc2.png?v=1791383535 Ilaprazole Impurity 30, 91.30% Ilaprazole Impurity 30|C4X-113030 https://www.jk-sci.com/products/s57c4x-113034 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cd9dab4f09834d74e69f8999209ad440.jpg?v=1791383530 Ilaprazole Impurity 34, 98.30% | 2285351-50-8 Ilaprazole Impurity 34|C4X-113034|2285351-50-8 https://www.jk-sci.com/products/s57c4x-113036 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/52055fd6640ff98b428d674aedaeed4e.jpg?v=1791383520 Ilaprazole Impurity 36, 99.50% | 1018229-53-2 Ilaprazole Impurity 36|C4X-113036|1018229-53-2 https://www.jk-sci.com/products/s57c4x-11304 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_f440c255-1b53-4791-9d37-dc79b57804c6.png?v=1791383520 Ilaprazole Impurity 4, 95.00% Ilaprazole Impurity 4|C4X-11304 https://www.jk-sci.com/products/s57c4x-113049 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_2bc50a50-9ffb-4d1b-859c-3fb63c8f9d6c.png?v=1791383514 Ilaprazole Impurity 49（碘盐C4X-1130124更便宜）, 91.70% Ilaprazole Impurity 49（碘盐C4X-1130124更便宜）|C4X-113049 https://www.jk-sci.com/products/s57c4x-113050 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_4e65c504-a1cf-44b7-97f1-bfbcf6ae7145.png?v=1791383509 Ilaprazole Impurity 50, 93.60% Ilaprazole Impurity 50|C4X-113050 https://www.jk-sci.com/products/s57c4x-113066 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_cd2c88d4-fc45-40cc-a1ad-3586ea3282e9.png?v=1791383508 Ilaprazole Impurity 66, 84.30% Ilaprazole Impurity 66|C4X-113066 https://www.jk-sci.com/products/j5304668 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c91d1877100bc749c2b7d9a932e3aced.jpg?v=1791418193 Val-Gly-NH2·HCl, Purity by HPLC ≥ 95% | 36920-56-6 Val-Gly-NH2·HCl|04668|36920-56-6 https://www.jk-sci.com/products/j5304714 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ad51e24c1669f71bc0901fabad66166c.jpg?v=1791418169 Boc-3-(2'-pyridyl)-D-alanine, Purity by HPLC ? 99% | 98266-32-1 Boc-3-(2'-pyridyl)-D-alanine|04714|98266-32-1 https://www.jk-sci.com/products/s57c4x-113070 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c5b633754a3edc506c9970bef0b83369.jpg?v=1791383497 Ilaprazole Impurity 70, 99.10% | 2285346-40-7 Ilaprazole Impurity 70|C4X-113070|2285346-40-7 https://www.jk-sci.com/products/s57c4x-113088 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_f03b840c-7cd8-496c-8651-dfaffd0a2c12.png?v=1791383497 Ilaprazole Impurity 88, 97.30% Ilaprazole Impurity 88|C4X-113088 https://www.jk-sci.com/products/j5304817 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6f791b1849972a44da55cc42f1be0e6a.jpg?v=1791418108 Fmoc-L-histidine(2-chlorotrityl resin)amide, Mesh Size 200-400 mesh || Substitution (meq/g) 0.2-0.6 meq/g | 109425-51-6 Fmoc-L-histidine(2-chlorotrityl resin)amide|04817|109425-51-6 https://www.jk-sci.com/products/a019447477 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_a5918731-669c-4ac5-ba82-70ce3697c512.png?v=1787976921 CX-1, -Mal Infrared dye, 95%, Excitation/emission wavelength: 883/902 CX-1, -Mal Infrared dye, 95%, Excitation/emission wavelength: 883/902|9447477 https://www.jk-sci.com/products/j5304918 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/38a1f1046abaa74c8a0464c31d87d45a.jpg?v=1791418041 Z-D-serine methyl ester, Purity by HPLC ≥ 97% | 93204-36-5 Z-D-serine methyl ester|04918|93204-36-5 https://www.jk-sci.com/products/j5304968 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/689652e078c99744a9d21dc2f3e68e6b.jpg?v=1791417985 Na,b-Bis-Boc-L-2,3-diaminopropionic acid dicyclohexylammonium salt, Purity by HPLC ≥ 98% | 201472-68-6 Na,b-Bis-Boc-L-2,3-diaminopropionic acid dicyclohexylammonium salt|04968|201472-68-6 https://www.jk-sci.com/products/j5305083 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/399fd4e763a259c56229fdda1593e40a.jpg?v=1791417838 Boc-L-leucine N,O-dimethylhydroxamide, Purity by HPLC ≥ 99% | 87694-50-6 Boc-L-leucine N,O-dimethylhydroxamide|05083|87694-50-6 https://www.jk-sci.com/products/j5305046 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/20cfd0b99850be27e240fa31ae3404d6.jpg?v=1791417877 Boc-aminooxyacetic acid, Assay by titration 98.5 - 101.0% || Purity by HPLC ≥ 99% | 42989-85-5 Boc-aminooxyacetic acid|05046|42989-85-5 https://www.jk-sci.com/products/j5305104 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/eb8a4cce5a7684d97c307951c574a5c4.jpg?v=1791417819 Boc-12-aminododecanoic acid, Purity by HPLC ≥ 99% | 18934-81-1 Boc-12-aminododecanoic acid|05104|18934-81-1 https://www.jk-sci.com/products/j5305113 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3b737f30e98c6a931c115a268cf5a527.jpg?v=1791417801 Boc-4-benzoyl-D-phenylalanine, Purity ≥ 99% | 117666-94-1 Boc-4-benzoyl-D-phenylalanine|05113|117666-94-1 https://www.jk-sci.com/products/s57c4x-11311 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/adca1408aa0fd64fac880dc486cd1a3d.jpg?v=1791383492 Brexpiprazole Impurity 1, 97.20% | 846038-18-4 Brexpiprazole Impurity 1|C4X-11311|846038-18-4 https://www.jk-sci.com/products/j5305125 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/36658c288a99194c9b1d793ff58c7f85.jpg?v=1791417777 L-Homotyrosine hydrobromide salt, Purity ≥ 97% (NMR) | 141899-12-9 L-Homotyrosine hydrobromide salt|05125|141899-12-9 https://www.jk-sci.com/products/a019447478 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_113de274-8759-4ac5-8901-a403fcf2ee50.png?v=1787976921 CX-2 Infrared dye, 95%, Excitation/emission wavelength: 981/1032 CX-2 Infrared dye, 95%, Excitation/emission wavelength: 981/1032|9447478 https://www.jk-sci.com/products/j5305140 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/66d56b7919959000ea9dcd81443eecee.jpg?v=1791417746 Fmoc-D-thiaproline, Assay by titration ≥ 98% || Purity by HPLC ≥ 99% | 198545-89-0 Fmoc-D-thiaproline|05140|198545-89-0 https://www.jk-sci.com/products/a019447479 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_a7b371dc-c677-4ed3-8f42-349f68c9cff0.png?v=1787976916 CX-2, -COOH Infrared dye, 95% CX-2, -COOH Infrared dye, 95%|9447479 https://www.jk-sci.com/products/j5305172 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4ad0afb96ec004d1d66e841014f804f4.jpg?v=1791417733 Fmoc-4-fluoro-L-phenylalanine 4-alkoxybenzyl alcohol resin, Mesh Size 100 - 200 mesh || Substitution (meq/g) 0.3 - 1.2 mmol/g Fmoc-4-fluoro-L-phenylalanine 4-alkoxybenzyl alcohol resin|05172 https://www.jk-sci.com/products/j5305177 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b86ad24523b1896636eaab6aa1e8ae3a.jpg?v=1791417728 H-Leucinol-2-chlorotrityl resin (0.3 - 0.7 meq/g, 200 - 400 mesh), Mesh Size 200 - 400 mesh || Substitution (meq/g) 0.3 - 0.7 meq/g H-Leucinol-2-chlorotrityl resin (0.3 - 0.7 meq/g, 200 - 400 mesh)|05177 https://www.jk-sci.com/products/s57c4x-1131125 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_703583df-2405-4db7-941c-a84d75e847a5.png?v=1791383479 Brexpiprazole impurity 125, 94.40% Brexpiprazole impurity 125|C4X-1131125 https://www.jk-sci.com/products/j5305233 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/aab5e272a4f7ab0e590f7a47480d569f.jpg?v=1791417671 L-2-Methoxyphenylalanine, Chiral HPLC ≥ 98% (ee) || Purity by HPLC ≥ 97% | 193546-31-5 L-2-Methoxyphenylalanine|05233|193546-31-5 https://www.jk-sci.com/products/a01139834 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3fa037abe91d75e6591bdbaa40e0f230.jpg?v=1790216252 Hydroxylapatite, 96% | 1306-06-5 Hydroxylapatite, 96%|139834|1306-06-5 https://www.jk-sci.com/products/j5305333 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/87ce5180e8a3cbffdb9208f5045b57df.jpg?v=1791417608 Fmoc-D-phenylglycine 4-alkoxybenzyl alcohol resin, Mesh Size 100-200 || Substitution (meq/g) 0.3-0.8 Fmoc-D-phenylglycine 4-alkoxybenzyl alcohol resin|05333 https://www.jk-sci.com/products/j5304126 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/68b0730af419058de8add962b2ceb845.jpg?v=1791418687 Boc-3,5-difluoro-D-phenylalanine, Purity by HPLC ≥ 99% | 205445-53-0 Boc-3,5-difluoro-D-phenylalanine|04126|205445-53-0 https://www.jk-sci.com/products/a011392053 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1392053.png?v=1788931666 1-Boc-(3R)-3-Cbz-aminopiperidine, 97% | 320580-76-5 1-Boc-(3R)-3-Cbz-aminopiperidine, 97%|1392053|320580-76-5 https://www.jk-sci.com/products/j5305306 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2892782d49107d997518e9d8199b2632.jpg?v=1791417638 Na-Fmoc-Nim-methoxytrityl-L-histidine, Assay > 95% || Purity by HPLC HPLC(265 nm) = ≥ 99%, HPLC(220 nm) = ≥ 99% | 133367-33-6 Na-Fmoc-Nim-methoxytrityl-L-histidine|05306|133367-33-6 https://www.jk-sci.com/products/j5305346 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6ba3f8871069ec35134e479cbfb8c4f5.jpg?v=1791417599 D-Thiaproline, Assay ≥ 99% | 45521-09-3 D-Thiaproline|05346|45521-09-3 https://www.jk-sci.com/products/s57c4x-113115 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/496090.png?v=1791383467 Brexpiprazole Impurity 15, 98.70% | 31570-97-5 Brexpiprazole Impurity 15|C4X-113115|31570-97-5 https://www.jk-sci.com/products/a011399789 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c186aeedb080a1fcb72e63e9fa63c0b8.jpg?v=1788931611 4,4,5,5-Tetramethyl-2-(4-phenoxyphenyl)-1,3,2-dioxaborolane, 98% | 269410-26-6 4,4,5,5-Tetramethyl-2-(4-phenoxyphenyl)-1,3,2-dioxaborolane, 98%|1399789|269410-26-6 https://www.jk-sci.com/products/j5305383 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7feee7a262536dba8b74794f1ea03678.jpg?v=1791417561 Na-[2,4-Dinitro-5-fluorophenyl]-L-valine amide, Purity by HPLC ≥ 99% | 132679-61-9 Na-[2,4-Dinitro-5-fluorophenyl]-L-valine amide|05383|132679-61-9 https://www.jk-sci.com/products/a01140055 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/226918.png?v=1788931599 trans-4-(2-Thienyl)-3-buten-2-one, 97% | 33603-63-3 trans-4-(2-Thienyl)-3-buten-2-one, 97%|140055|33603-63-3 https://www.jk-sci.com/products/j5305453 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/723727ced710132518b7452fddaa4358.jpg?v=1791417515 Na-Boc-Nw-(methoxybenzenesulfonyl)-L-arginine | 58810-09-6 Na-Boc-Nw-(methoxybenzenesulfonyl)-L-arginine|05453|58810-09-6 https://www.jk-sci.com/products/s57c4x-113118 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c9507b2586ec60057f9cfb9a0626b27c_5a7f1b13-3849-40e0-9299-ecd9074b1338.jpg?v=1791383460 Brexpiprazole Impurity 18, 97.10% | 66490-33-3 Brexpiprazole Impurity 18|C4X-113118|66490-33-3 https://www.jk-sci.com/products/j5305457 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8eb4f8adf1ac3df1d66925c673fb2ddd.jpg?v=1791417511 Na-Boc-L-arginine, Assay ≥ 94% (Elemental analysis, Nth : 20.42%) | 13726-76-6 Na-Boc-L-arginine|05457|13726-76-6 https://www.jk-sci.com/products/s57c4x-113121 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/10962b2c5151d9035fa28517fd5f5281.jpg?v=1791383455 Brexpiprazole Impurity 21, 99.90% | 2059954-32-2 Brexpiprazole Impurity 21|C4X-113121|2059954-32-2 https://www.jk-sci.com/products/j5305444 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7304fb05296bace066a2b7e0e45deded.jpg?v=1791417526 Boc-3,5-diiodo-D-tyrosine, Purity by HPLC ≥ 99% | 214630-08-7 Boc-3,5-diiodo-D-tyrosine|05444|214630-08-7 https://www.jk-sci.com/products/a01140414 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/140414.png?v=1790216237 2-Amino-4-methyl-3-nitropyridine, 98% | 6635-86-5 2-Amino-4-methyl-3-nitropyridine, 98%|140414|6635-86-5 https://www.jk-sci.com/products/a01140425 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/140425_f1b9c470-5208-45fb-98ae-b58d2df81a51.png?v=1790216236 2,6-Dichlorobenzenethiol, 98.5% | 24966-39-0 2,6-Dichlorobenzenethiol, 98.5%|140425|24966-39-0 https://www.jk-sci.com/products/j5305468 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/45a06d1496294b3558662be8fa425cee.jpg?v=1791417498 Boc-S-methyl-L-cysteine, Purity ≥ 97% | 16947-80-1 Boc-S-methyl-L-cysteine|05468|16947-80-1 https://www.jk-sci.com/products/j5305476 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f45d657c79ee7c54c76134880028e816.jpg?v=1791417484 Boc-D-aspartic acid b-cyclohexyl ester, Purity by HPLC ≥ 99% | 112898-18-7 Boc-D-aspartic acid b-cyclohexyl ester|05476|112898-18-7 https://www.jk-sci.com/products/a01140955 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/348755.png?v=1790216215 2-(4-Morpholino)benzonitrile, 98% | 204078-32-0 2-(4-Morpholino)benzonitrile, 98%|140955|204078-32-0 https://www.jk-sci.com/products/j5304950 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c99148df9f13cb8fc0de54540c2f5fa0.jpg?v=1791418009 Fmoc-(3S,4S,5S)-4-amino-3-hydroxy-5-methylheptanoic acid, Purity by HPLC ≥ 98% | 215190-17-3 Fmoc-(3S,4S,5S)-4-amino-3-hydroxy-5-methylheptanoic acid|04950|215190-17-3 https://www.jk-sci.com/products/j5305493 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/72ca4d17bf61fd638cf50b4249d0c8b1.jpg?v=1791417460 Boc-D-glutamic acid a-tert-butyl ester, Purity ≥ 98% (NMR) | 73872-71-6 Boc-D-glutamic acid a-tert-butyl ester|05493|73872-71-6 https://www.jk-sci.com/products/j5305470 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dd25fd6bd3689ccb1f67f8713dded81c.jpg?v=1791417494 Boc-D-allo-isoleucine, Purity by HPLC ≥ 97% | 55780-90-0 Boc-D-allo-isoleucine|05470|55780-90-0 https://www.jk-sci.com/products/a01141060 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c8ecc22ae4370291089c5d9a1f002bfb.jpg?v=1790216210 5-Bromoindole, 99% | 10075-50-0 5-Bromoindole, 99%|141060|10075-50-0 https://www.jk-sci.com/products/j5305498 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a0aeaf3a1c1d45d8b76e6a163989aca6.jpg?v=1791417454 Boc-S-4-methylbenzyl-D-homocysteine, Purity by HPLC ≥ 99% | 214630-13-4 Boc-S-4-methylbenzyl-D-homocysteine|05498|214630-13-4 https://www.jk-sci.com/products/s57c4x-113135 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8445d53f592a2f9286d33cd743cce003.jpg?v=1791383436 Brexpiprazole Impurity 35, 95.40% | 2143944-65-2 Brexpiprazole Impurity 35|C4X-113135|2143944-65-2 https://www.jk-sci.com/products/s57c4x-113132 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/790753.png?v=1791383441 Brexpiprazole Impurity 32, 96.40% | 5118-13-8 Brexpiprazole Impurity 32|C4X-113132|5118-13-8 https://www.jk-sci.com/products/j5305510 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8b35d1be00d56a86cf71386255e625d9.jpg?v=1791417427 Na,d-Bis-Boc-D-ornithine, Purity ≥ 99% | 137524-82-4 Na,d-Bis-Boc-D-ornithine|05510|137524-82-4 https://www.jk-sci.com/products/j5305505 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b70fab3a2420dedb5aeead8b3c2ce86b.jpg?v=1791417437 Na-Boc-Ne-Fmoc-D-lysine, Purity by HPLC ≥ 98% | 115186-31-7 Na-Boc-Ne-Fmoc-D-lysine|05505|115186-31-7 https://www.jk-sci.com/products/a01141174 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/141174.png?v=1790216198 4'-Hydroxypropiophenone, 98% | 70-70-2 4'-Hydroxypropiophenone, 98%|141174|70-70-2 https://www.jk-sci.com/products/j5305515 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/54d90716526c68d784b6da4b34ba3957.jpg?v=1791417421 Boc-D-Phe-Pro-OH, Purity by HPLC ≥ 99% | 38675-10-4 Boc-D-Phe-Pro-OH|05515|38675-10-4 https://www.jk-sci.com/products/j5305525 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5d3bf132424255530931170872b69cac.jpg?v=1791417409 Boc-DL-a-tert-butylglycine, Purity by HPLC ≥ 99% | 102185-35-3 Boc-DL-a-tert-butylglycine|05525|102185-35-3 https://www.jk-sci.com/products/j5305529 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/34cc335f7d5ec0597aa4ee42ec24f13d.jpg?v=1791417403 Boc-Gln-Gln-OH | 250290-76-7 Boc-Gln-Gln-OH|05529|250290-76-7 https://www.jk-sci.com/products/j5305538 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/03b667a0ae3f9c591b82c241d606673b.jpg?v=1791417398 Boc-N-p-benzyloxymethyl-L-histidine methyl ester hydrochloride, Purity by HPLC ≥ 98% | 83468-80-8 Boc-N-p-benzyloxymethyl-L-histidine methyl ester hydrochloride|05538|83468-80-8 https://www.jk-sci.com/products/s57c4x-113146 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a9b240de5662b2fcd1af15dd52f307f7.jpg?v=1791383424 Brexpiprazole Impurity 46, Purity: 99.8% | 2454317-17-8 Brexpiprazole Impurity 46|C4X-113146|2454317-17-8 https://www.jk-sci.com/products/s57c4x-113143 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8842aefd75fb08140e2b9fbcfd1ffadb.jpg?v=1791383428 Brexpiprazole Impurity 43, 91.30% | 1420987-85-4 Brexpiprazole Impurity 43|C4X-113143|1420987-85-4 https://www.jk-sci.com/products/j5305559 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/98b3605abe99b740e1b2239aed9395a1.jpg?v=1791417381 Boc-N-methyl-2-aminobenzoic acid, Purity by HPLC ≥ 98% | 141871-02-5 Boc-N-methyl-2-aminobenzoic acid|05559|141871-02-5 https://www.jk-sci.com/products/j5305552 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/104b6c7e1b1e4a4cca9bfb0215d5eeca.jpg?v=1791417385 Boc-Lys(Boc)-Gly-OH, Purity by HPLC ≥ 98% | 120893-72-3 Boc-Lys(Boc)-Gly-OH|05552|120893-72-3 https://www.jk-sci.com/products/j5305568 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4472bd9ec236d444910625379c5072c8.jpg?v=1791417365 Boc-N-methyl-DL-valine, Assay ≥ 98% (NMR) || Assay by titration ≥ 98% | 13850-91-4 Boc-N-methyl-DL-valine|05568|13850-91-4 https://www.jk-sci.com/products/j5305586 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f151e6e41c367d6fe25e663573346315.jpg?v=1791417346 Boc-O-methyl-DL-tyrosine, Purity by HPLC ≥ 98% | 141895-35-4 Boc-O-methyl-DL-tyrosine|05586|141895-35-4 https://www.jk-sci.com/products/a011412952 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3cbeab553d331c49a48b87cedc5927a9.jpg?v=1790010034 5(6)-Carboxytetramethylrhodamine, 97%, mixed isomers | 150347-56-1 5(6)-Carboxytetramethylrhodamine, 97%, mixed isomers|1412952|150347-56-1 https://www.jk-sci.com/products/s57c4x-11315 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/393553_c85377ab-b31a-44d9-b3d9-bc562d71823a.png?v=1791383417 Brexpiprazole Impurity 5, 99.80% | 22246-18-0 Brexpiprazole Impurity 5|C4X-11315|22246-18-0 https://www.jk-sci.com/products/j5305572 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e6542c5a8829594b79e83a6562039bd4.jpg?v=1791417361 Boc-N-methyl-4-nitro-L-phenylalanine dicyclohexylammonium salt, Purity by HPLC ≥ 98% | 70663-56-8 Boc-N-methyl-4-nitro-L-phenylalanine dicyclohexylammonium salt|05572|70663-56-8 https://www.jk-sci.com/products/a01239566 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f49ec9ce2b80beb4c10b17bef1b1ef8d.jpg?v=1788926118 5-Methylisoxazole-3-carboxylic acid, 98.5% | 3405-77-4 5-Methylisoxazole-3-carboxylic acid, 98.5%|239566|3405-77-4 https://www.jk-sci.com/products/s57c4x-113156 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b3663472111ad11790303353f1b027d1.jpg?v=1791383412 Brexpiprazole Impurity 56, 99.00% | 1191900-59-0 Brexpiprazole Impurity 56|C4X-113156|1191900-59-0 https://www.jk-sci.com/products/j5305589 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dcff332672fa319686c973383fbb5853.jpg?v=1791417343 Boc-Phe-Pro-OH, Assay ≥ 99% | 23420-32-8 Boc-Phe-Pro-OH|05589|23420-32-8 https://www.jk-sci.com/products/j5305612 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cc61bdc4dfac2f613606870f2d3523e5.jpg?v=1791417314 Boc-O-acetyl-L-tyrosine, Purity ≥ 98% | 80971-82-0 Boc-O-acetyl-L-tyrosine|05612|80971-82-0 https://www.jk-sci.com/products/a01240159 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/265081_fe3c7b23-f54d-4e5a-ae3d-d110dd505f25.png?v=1788926101 5-Fluoro-2-methoxyphenylboronic acid, 97% | 179897-94-0 5-Fluoro-2-methoxyphenylboronic acid, 97%|240159|179897-94-0 https://www.jk-sci.com/products/s57c4x-113170 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/487504.png?v=1791383405 Brexpiprazole Impurity 70, 98.40% | 6940-78-9 Brexpiprazole Impurity 70|C4X-113170|6940-78-9 https://www.jk-sci.com/products/j5305604 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/aae5850648765bac5c6ed0e051397c1f.jpg?v=1791417325 Boc-b-chloro-L-alanine, Purity ≥ 95% (NMR) | 71404-98-3 Boc-b-chloro-L-alanine|05604|71404-98-3 https://www.jk-sci.com/products/j5305615 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f1d27baa7b5989baf405d1cad4480f35.jpg?v=1791417314 Boc-Val-Val-OH, Purity by HPLC ≥ 98% | 69209-73-0 Boc-Val-Val-OH|05615|69209-73-0 https://www.jk-sci.com/products/j5305645 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/33905babf6ca54c8fcef17743dae8f00.jpg?v=1791417276 D-2,3-Diaminopropionic acid hydrochloride, Assay by titration ≥ 99% | 6018-56-0 D-2,3-Diaminopropionic acid hydrochloride|05645|6018-56-0 https://www.jk-sci.com/products/j5305675 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5f8393ab683103217f0460340406532d.jpg?v=1791417262 Na-Fmoc-L-asparagine 4-nitrophenyl ester | 71989-17-8 Na-Fmoc-L-asparagine 4-nitrophenyl ester|05675|71989-17-8 https://www.jk-sci.com/products/a01240561 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/301076.png?v=1790213210 2-Amino-3-bromo-5-methylpyridine, 98% | 17282-00-7 2-Amino-3-bromo-5-methylpyridine, 98%|240561|17282-00-7 https://www.jk-sci.com/products/j5305682 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bc6acfd99f8309478c9f178ef68c4777.jpg?v=1791417251 Fmoc-S-2-hydroxyethyl-L-cysteine, Purity by HPLC ≥ 98% | 200354-35-4 Fmoc-S-2-hydroxyethyl-L-cysteine|05682|200354-35-4 https://www.jk-sci.com/products/s57c4x-113175 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_7983c8ad-5d92-46b2-8845-c54edf8bf0f8.png?v=1791383400 Brexpiprazole Impurity 75, 91.70% Brexpiprazole Impurity 75|C4X-113175 https://www.jk-sci.com/products/a012411095 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d7867302a3aca0af216e247601e2f137.jpg?v=1788926059 (2S,3R,4R,5S,6R)-6-(Acetoxymethyl)-3-(((2,2,2-trichloroethoxy)carbonyl)amino)tetrahydro-2H-pyran-2,4,5-triyl triacetate, 97% | 122210-05-3 (2S,3R,4R,5S,6R)-6-(Acetoxymethyl)-3-(((2,2,2-trichloroethoxy)carbonyl)amino)tetrahydro-2H-pyran-2,4,5-triyl triacetate, 97%|2411095|122210-05-3 https://www.jk-sci.com/products/j5305696 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/37cec578284423499fe8bb8f3ed3fa68.jpg?v=1791417234 Fmoc-S-tert-butyl-D-cysteine, Purity by HPLC ≥ 97% | 131766-22-8 Fmoc-S-tert-butyl-D-cysteine|05696|131766-22-8 https://www.jk-sci.com/products/s57c4x-113182 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_acd516a7-b689-4ed3-8ec1-2f561df9e7fe.png?v=1791383395 Brexpiprazole impurity 82, 98.30% Brexpiprazole impurity 82|C4X-113182 https://www.jk-sci.com/products/j5303910 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/442841.png?v=1791418995 Na,Na-Bis-Fmoc-L-cystine bis-N-hydroxysuccinimide ester, Purity by HPLC ≥ 98% | 112514-60-0 Na,Na-Bis-Fmoc-L-cystine bis-N-hydroxysuccinimide ester|03910|112514-60-0 https://www.jk-sci.com/products/j5304190 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/29297b45da53dd839017da69df101068.jpg?v=1791418598 Fmoc-L-norleucine 4-alkoxybenzyl alcohol resin, Mesh Size 100-200 || Substitution (meq/g) 0.3-1.2 meq/g Fmoc-L-norleucine 4-alkoxybenzyl alcohol resin|04190 https://www.jk-sci.com/products/j5304444 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f601f11c1ed34e78f889d38dd9e38f50.jpg?v=1791418327 Na-Z-Na-Methyl-L-phenylalanine, Purity by HPLC ≥ 99% | 2899-07-2 Na-Z-Na-Methyl-L-phenylalanine|04444|2899-07-2 https://www.jk-sci.com/products/s57c4x-113191 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_ed8082e4-8dc5-47fd-a4dc-d7602f7b64b1.png?v=1791383390 Brexpiprazole Impurity 91, 96.40% Brexpiprazole Impurity 91|C4X-113191 https://www.jk-sci.com/products/j5304690 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4e4aa550fadd64c9a974dd372b312bf7.jpg?v=1791418187 Z-Gly-Phe-NH2, Purity by HPLC ≥ 97% | 5513-69-9 Z-Gly-Phe-NH2|04690|5513-69-9 https://www.jk-sci.com/products/j5304302 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/85300a2145491b7af697f43050110469.jpg?v=1791418487 1,3-Bis-(Aminomethyl)benzene trityl resin, Mesh Size 200-400 mesh || Substitution (meq/g) 0.4-0.6 meq/g 1,3-Bis-(Aminomethyl)benzene trityl resin|04302 https://www.jk-sci.com/products/s57c4x-1132 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/280726.png?v=1791383390 Atorvastatin, 95.20% | 134523-00-5 Atorvastatin|C4X-1132|134523-00-5 https://www.jk-sci.com/products/a01241134 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/241134.png?v=1788926055 4-Phenyl-2-butanol, 99% | 2344-70-9 4-Phenyl-2-butanol, 99%|241134|2344-70-9 https://www.jk-sci.com/products/s57c4x-1132106 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3ee309f7171eba16ca3e6a57f9da9492.jpg?v=1791383381 Atorvastatin Impurity 106, 92.20% | 1316291-19-6 Atorvastatin Impurity 106|C4X-1132106|1316291-19-6 https://www.jk-sci.com/products/a01241424 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/241424.png?v=1787995236 (S)-(-)-tert-Butylsulfinamide, 98% | 343338-28-3 (S)-(-)-tert-Butylsulfinamide, 98%|241424|343338-28-3 https://www.jk-sci.com/products/s57c4x-113211 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6e07448b23267e8b3c74471a39a1d7dc.jpg?v=1791383378 Atorvastatin Cyclic (Fluorophenyl) Sodium Salt, 95.60% | 1315629-79-8 Atorvastatin Cyclic (Fluorophenyl) Sodium Salt|C4X-113211|1315629-79-8 https://www.jk-sci.com/products/j5304824 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5ce23d7e30cd95570b1a020e46dc6c74.jpg?v=1791418101 2-Chlorotrityl resin-4-aminomethyl cyclohexanecarboxylic acid-OBt, Mesh Size 200-400 mesh || Substitution (meq/g) 0.5-1.0 meq/g 2-Chlorotrityl resin-4-aminomethyl cyclohexanecarboxylic acid-OBt|04824 https://www.jk-sci.com/products/j5305032 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/05c2656fc42b826e3f5ac98433c5368d.jpg?v=1791417894 Boc-(3S)-3-amino-4-phenyl-2-butanone, Purity by HPLC ≥ 99% | 85613-64-5 Boc-(3S)-3-amino-4-phenyl-2-butanone|05032|85613-64-5 https://www.jk-sci.com/products/a01241675 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/241675.png?v=1788926028 2-(1-((4-(Hydroxymethyl)phenyl)amino)-3-methylbutylidene)-5,5-dimethylcyclohexane-1,3-dione, 98% | 172611-73-3 2-(1-((4-(Hydroxymethyl)phenyl)amino)-3-methylbutylidene)-5,5-dimethylcyclohexane-1,3-dione, 98%|241675|172611-73-3 https://www.jk-sci.com/products/s57c4x-1132118 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0dfb1e670bc221719c50bf6f6db370c1_b5d858c5-9fa6-4d19-b11a-a73fb6483387.jpg?v=1791383374 Atorvastatin hemicalcium trihydrate, Purity: 99.4% | 344423-98-9 Atorvastatin hemicalcium trihydrate|C4X-1132118|344423-98-9 https://www.jk-sci.com/products/a01241903 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/241903_90653786-fc43-4623-aaec-b9a292bd594a.png?v=1790213179 3-Aminosalicylic acid, 96% | 570-23-0 3-Aminosalicylic acid, 96%|241903|570-23-0 https://www.jk-sci.com/products/s57c4x-106712 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/789204_d95434a0-c73d-4b14-96ba-5a715d4d75f1.png?v=1791386072 Levetiracetam Impurity 12, 98.50% | 103765-03-3 Levetiracetam Impurity 12|C4X-106712|103765-03-3 https://www.jk-sci.com/products/j5305092 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fdbe741dbcaa9ab9618fe131fe9f1401.jpg?v=1791417829 Boc-L-proline N,O-dimethylhydroxamide, Purity by HPLC ≥ 95% | 115186-37-3 Boc-L-proline N,O-dimethylhydroxamide|05092|115186-37-3 https://www.jk-sci.com/products/j5305122 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0d7ae2f0fc2bd5300658fc0aed279ab3.jpg?v=1791417783 D-2,4-Diaminobutyric acid dihydrochloride, Purity ≥ 98% (NMR) | 127531-11-7 D-2,4-Diaminobutyric acid dihydrochloride|05122|127531-11-7 https://www.jk-sci.com/products/j5305164 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0e21ff7d8e292d32efdbd22b89c6d7db.jpg?v=1791417742 Fmoc-L-4-benzoyl-L-phenylalanine 4-alkoxybenzyl alcohol resin, Mesh Size 100 - 200 mesh || Substitution (meq/g) 0.3 - 0.8 meq/g Fmoc-L-4-benzoyl-L-phenylalanine 4-alkoxybenzyl alcohol resin|05164 https://www.jk-sci.com/products/j5305224 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/341bb2d099df23131318e48ac53a52fd.jpg?v=1791417688 L-meta-Tyrosine, Chiral HPLC ≥ 98.0% (ee) || Purity by HPLC ≥ 100% | 587-33-7 L-meta-Tyrosine|05224|587-33-7 https://www.jk-sci.com/products/s57c4x-108720 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b72e6c0b1aa2c4cb2381f10793165476_0182ea92-4402-4447-9f7c-1a0b86f87ae3.jpg?v=1791385116 Tadalafil Impurity 20, 95.70% | 171752-68-4 Tadalafil Impurity 20|C4X-108720|171752-68-4 https://www.jk-sci.com/products/a01242101 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/359477.png?v=1788925995 Ethyl benzoylformate, 95% | 1603-79-8 Ethyl benzoylformate, 95%|242101|1603-79-8 https://www.jk-sci.com/products/j5305366 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6c0c56643297b7d56e01912cbc5bdfea.jpg?v=1791417578 Ne-Fmoc-L-lysine methyl ester hydrochloride, Purity by HPLC ≥ 99% | 201009-98-5 Ne-Fmoc-L-lysine methyl ester hydrochloride|05366|201009-98-5 https://www.jk-sci.com/products/j5305322 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/221bcf40d7bc84ce8f476eb3cb998ffb.jpg?v=1791417624 Fmoc-O-tert-butyl-L-tyrosine N-hydroxysuccinimide ester, Purity by HPLC ≥ 98% | 155892-27-6 Fmoc-O-tert-butyl-L-tyrosine N-hydroxysuccinimide ester|05322|155892-27-6 https://www.jk-sci.com/products/s57c4x-1096 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/75eecf2145c8f44d540b2598e1c326b1.jpg?v=1791384680 Azilsartan, 99.40% | 147403-03-0 Azilsartan|C4X-1096|147403-03-0 https://www.jk-sci.com/products/a01242651 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/242651.png?v=1790213164 O-Methylisourea sulfate, 99% | 29427-58-5 O-Methylisourea sulfate, 99%|242651|29427-58-5 https://www.jk-sci.com/products/s57c4x-109411 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1c374097589d217cfee4a6a8f233299b.jpg?v=1791384779 Felodipine Impurity 11, 92.10% | 150131-21-8 Felodipine Impurity 11|C4X-109411|150131-21-8 https://www.jk-sci.com/products/j5305445 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e2788559173dc2e4f36b717ec241a05d.jpg?v=1791417524 Boc-O-2',6'-dichlorobenzyl-3,5-diiodo-L-tyrosine, Purity ≥ 99% | 201416-66-2 Boc-O-2',6'-dichlorobenzyl-3,5-diiodo-L-tyrosine|05445|201416-66-2 https://www.jk-sci.com/products/j5305471 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2ad24fd4ee2a1d52daec03e4f8d707bf.jpg?v=1791417489 Na-Boc-Nw-(4-methoxy-2,3,6-trimethylbenzenesulfonyl)-D-arginine, Purity by HPLC ≥ 98% | 200122-49-2 Na-Boc-Nw-(4-methoxy-2,3,6-trimethylbenzenesulfonyl)-D-arginine|05471|200122-49-2 https://www.jk-sci.com/products/j5305461 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8823b19b262aebc36fdfeae715f14be4.jpg?v=1791417507 Boc-L-aspartic acid b-N-hydroxysuccinimide ester a-benzyl ester, Purity by HPLC ≥ 97% | 140171-25-1 Boc-L-aspartic acid b-N-hydroxysuccinimide ester a-benzyl ester|05461|140171-25-1 https://www.jk-sci.com/products/j5305509 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/44903da74903935363a262b4399d0216.jpg?v=1791417432 Boc-D-methionine N-hydroxysuccinimide ester, Purity by HPLC ≥ 99% | 26060-98-0 Boc-D-methionine N-hydroxysuccinimide ester|05509|26060-98-0 https://www.jk-sci.com/products/s57c4x-109722 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/05518b6f68db9587f7825df786d80ebd.jpg?v=1791384558 Olmesartan Impurity 22, Purity: 100.0% | 58954-23-7 Olmesartan Impurity 22|C4X-109722|58954-23-7 https://www.jk-sci.com/products/a01242995 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/242995.png?v=1788925952 Methyl hesperidin, 90% | 11013-97-1 Methyl hesperidin, 90%|242995|11013-97-1 https://www.jk-sci.com/products/j5305494 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/534757c361bbc680c14861dcc253ffed.jpg?v=1791417459 Na,Nim-Bis-Boc-D-histidine·benzene, Purity ≥ 99% (NMR) | 75498-93-0 Na,Nim-Bis-Boc-D-histidine·benzene|05494|75498-93-0 https://www.jk-sci.com/products/j5305523 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/838139dfa6ae9b064f5188175b3ba1c2.jpg?v=1791417415 Boc-DL-isoleucine, Purity by HPLC ≥ 98% | 116194-21-9 Boc-DL-isoleucine|05523|116194-21-9 https://www.jk-sci.com/products/j5305535 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/82da6f64aa455db230903e6ca599cc65.jpg?v=1791417398 Boc-L-glutamic acid g-N-hydroxysuccinimide ester a-tert-butyl ester, Assay ≥ 99% (Cth 53.99% by Elemental analysis) | 81659-82-7 Boc-L-glutamic acid g-N-hydroxysuccinimide ester a-tert-butyl ester|05535|81659-82-7 https://www.jk-sci.com/products/a012448267 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e8930e74418fc529c75c2c3d9b704028.jpg?v=1788364721 4-Phenoxybenzoic acid methyl ester, 98% | 21218-94-0 4-Phenoxybenzoic acid methyl ester, 98%|2448267|21218-94-0 https://www.jk-sci.com/products/j5305571 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0335a350de9e9e225d35e270a1b4b63d.jpg?v=1791417361 Boc-N-methyl-4-chloro-D-phenylalanine, Purity by HPLC ≥ 98% | 125324-00-7 Boc-N-methyl-4-chloro-D-phenylalanine|05571|125324-00-7 https://www.jk-sci.com/products/j5305554 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1561b6add92b3bb746752bdc6c39703a.jpg?v=1791417380 Na-Boc-Ne-4-toluenesulfonyl-L-lysine 4-nitrophenyl ester | 200943-66-4 Na-Boc-Ne-4-toluenesulfonyl-L-lysine 4-nitrophenyl ester|05554|200943-66-4 https://www.jk-sci.com/products/j5305587 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e9ea01ebfee9cc349c05f0f37eda80a7.jpg?v=1791417346 Boc-O-methyl-DL-tyrosine dicyclohexylammonium salt, Purity by HPLC ≥ 98% | 53267-94-0 Boc-O-methyl-DL-tyrosine dicyclohexylammonium salt|05587|53267-94-0 https://www.jk-sci.com/products/s57c4x-110082 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_b6cb7e95-d257-421e-b976-999e2ad07bb3.png?v=1791384409 N-Nitroso Vildagliptin Impurity 82(S-Isomer), 92.40% N-Nitroso Vildagliptin Impurity 82(S-Isomer)|C4X-110082 https://www.jk-sci.com/products/a012449900 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e887b56b458488c6855a1379bf08b2b7.jpg?v=1788925864 2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 98% | 1161009-89-7 2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 98%|2449900|1161009-89-7 https://www.jk-sci.com/products/j5305608 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d2514a24669d60b83775030abba58fa5.jpg?v=1791417320 Boc-b-cyclopropyl-L-alanine·DCHA, Purity by HPLC ≥ 98% | 89483-07-8 Boc-b-cyclopropyl-L-alanine·DCHA|05608|89483-07-8 https://www.jk-sci.com/products/s57c4x-11036 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_b5244f79-ea6b-447b-beaf-567f4085be38.png?v=1791384321 Dutasteride EP Impurity F, 97.90% Dutasteride EP Impurity F|C4X-11036 https://www.jk-sci.com/products/j5305644 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3559bf4056a5d2bcfbf79ac6311d4f20.jpg?v=1791417280 Benzyl-L-serine, Assay ≥ 99% | 17136-45-7 Benzyl-L-serine|05644|17136-45-7 https://www.jk-sci.com/products/s57c4x-11068 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/489d1970a40b14df5cb4f49c739e5e01.jpg?v=1791384292 Racecadotril EP Impurity H, Purity: 96.8% | 141437-88-9 Racecadotril EP Impurity H|C4X-11068|141437-88-9 https://www.jk-sci.com/products/a012451118 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3e643f6c5e173c42591dbbaa549a2480.jpg?v=1788925847 1-Butyl-1-methylpyrrolidinium bis(fluorosulfonyl)imide, 98% | 1057745-51-3 1-Butyl-1-methylpyrrolidinium bis(fluorosulfonyl)imide, 98%|2451118|1057745-51-3 https://www.jk-sci.com/products/j5305719 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/18a34538d263284927bc48cc76604078.jpg?v=1791417210 Na-Fmoc-Nim-Boc-L-histidine, Purity by HPLC ≥ 98% | 81379-52-4 Na-Fmoc-Nim-Boc-L-histidine|05719|81379-52-4 https://www.jk-sci.com/products/j5305728 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ed3e8897c4f160dc84a010b29326656b.jpg?v=1791417193 Fmoc-L-leucine 4-nitrophenyl ester | 71989-25-8 Fmoc-L-leucine 4-nitrophenyl ester|05728|71989-25-8 https://www.jk-sci.com/products/s57c4x-110783 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/348823_6845db64-6712-4ece-8268-0770fc9627a7.png?v=1791384261 Pramipexole Impurity 83 DiHCl, 95.20% | 104632-25-9 Pramipexole Impurity 83 DiHCl|C4X-110783|104632-25-9 https://www.jk-sci.com/products/s57c4x-11108 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_a5540560-0128-4ca9-b544-e933775c56eb.png?v=1791384138 Blonanserin Impurity 8, 90.40% Blonanserin Impurity 8|C4X-11108 https://www.jk-sci.com/products/s57c4x-110844 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/34925830642035a91a6c18dc544989ae.jpg?v=1791384223 Agomelatine Impurity 44, 99.50% | 55917-07-2 Agomelatine Impurity 44|C4X-110844|55917-07-2 https://www.jk-sci.com/products/s57c4x-111249 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1189592_44e1adbd-fe8f-4d9a-9ab5-f4b3af2cfe16.png?v=1791384051 Omeprazole Impurity 49, 99.30% | 89352-76-1 Omeprazole Impurity 49|C4X-111249|89352-76-1 https://www.jk-sci.com/products/s57c4x-11121 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/377716_ce59dd05-d1d8-4217-8d2f-82729c3bf367.png?v=1791384102 Esomeprazol EP Impurity A(Omeprazole EP Impurity A), 99.50% | 37052-78-1 Esomeprazol EP Impurity A(Omeprazole EP Impurity A)|C4X-11121|37052-78-1 https://www.jk-sci.com/products/j5305680 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/956d9455e7ca6567ead0a7897ff52055.jpg?v=1791417253 Fmoc-L-aspartic acid a-benzyl ester, Purity by HPLC ≥ 99% | 86060-83-5 Fmoc-L-aspartic acid a-benzyl ester|05680|86060-83-5 https://www.jk-sci.com/products/a012453164 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/95634f4584383760b8a391b634f0f1bd_92debf34-35c0-44b9-9546-e8b7efee8997.jpg?v=1787994984 2-Hydroxy-5-(methylthio)benzaldehyde, 97% | 67868-84-2 2-Hydroxy-5-(methylthio)benzaldehyde, 97%|2453164|67868-84-2 https://www.jk-sci.com/products/j5305702 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/33074992077321ecc297aac4ad82d883.jpg?v=1791417224 Na-Fmoc-Ne-allyloxycarbonyl-D-lysine, Purity by HPLC ≥ 98% | 214750-75-1 Na-Fmoc-Ne-allyloxycarbonyl-D-lysine|05702|214750-75-1 https://www.jk-sci.com/products/j5305790 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f7c3ec43df5a5f3352ee3dfdf6148297.jpg?v=1791417121 g-Glu-Ala-OH | 5875-41-2 g-Glu-Ala-OH|05790|5875-41-2 https://www.jk-sci.com/products/j5305755 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6980318fa0f663f14e7c372e7714ab0b.jpg?v=1791417150 Fmoc-4-fluoro-DL-phenylalanine, Purity by HPLC ≥ 98% | 264276-42-8 Fmoc-4-fluoro-DL-phenylalanine|05755|264276-42-8 https://www.jk-sci.com/products/j5305747 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/778e06ff8ace1be1c618f1c9a909a676.jpg?v=1791417162 Fmoc-L-norleucine N-hydroxysuccinimide ester, Purity by HPLC ≥ 98% | 201026-08-6 Fmoc-L-norleucine N-hydroxysuccinimide ester|05747|201026-08-6 https://www.jk-sci.com/products/s57c4x-11133 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/401286_12575336-e2b5-4960-8eb3-7a1020d390cc.png?v=1791384022 Lansoprazole EP Impurity C/USP Impurity B, 95.20% | 103577-40-8 Lansoprazole EP Impurity C/USP Impurity B|C4X-11133|103577-40-8 https://www.jk-sci.com/products/a01245421 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/305841.png?v=1791204277 Emodin, 95%, from Rheum palmatum L. | 518-82-1 Emodin, 95%, from Rheum palmatum L.|245421|518-82-1 https://www.jk-sci.com/products/s57c4x-111718 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/06c594d829cbf83f61c6432b91db71b2.jpg?v=1791383974 Gefitinib Impurity 18, 97.80% | 50413-44-0 Gefitinib Impurity 18|C4X-111718|50413-44-0 https://www.jk-sci.com/products/a01245478 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/245478.png?v=1790213073 Sodium phenylbutyrate, 98%, a histone deacetylase inhibitor | 1716-12-7 Sodium phenylbutyrate, 98%, a histone deacetylase inhibitor|245478|1716-12-7 https://www.jk-sci.com/products/j5305809 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d7352303a7a8707c77f7fc14a6bda509.jpg?v=1791417108 4-Methyl-DL-tryptophan, Purity by HPLC ≥ 98% | 1954-45-6 4-Methyl-DL-tryptophan|05809|1954-45-6 https://www.jk-sci.com/products/a01245652 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/245652.png?v=1790086288 2-(4-Chlorobenzoyl)benzoic acid, 99% | 85-56-3 2-(4-Chlorobenzoyl)benzoic acid, 99%|245652|85-56-3 https://www.jk-sci.com/products/j5305823 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f58605dabf877af0b5faedd0bbe43cf9.jpg?v=1791417098 Ala-D-Ala-OH, Purity by HPLC ≥ 97% | 3695-80-5 Ala-D-Ala-OH|05823|3695-80-5 https://www.jk-sci.com/products/s57c4x-1118104 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_358b6988-ff34-4021-b6b4-59cac98ce702.png?v=1791383946 Avanafil Impurity 104, 96.60% Avanafil Impurity 104|C4X-1118104 https://www.jk-sci.com/products/j5305832 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/201b2c0d0c4fa9c7afddd7687f82e2f4.jpg?v=1791417093 L-Alanine amide hydrobromide, Purity by HPLC ≥ 98% | 102029-80-1 L-Alanine amide hydrobromide|05832|102029-80-1 https://www.jk-sci.com/products/s57c4x-111812 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_41de0638-9a20-411f-80ce-383c96f99fb9.png?v=1791383931 Avanafil Impurity 12, 98.70% Avanafil Impurity 12|C4X-111812 https://www.jk-sci.com/products/a01246001 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/246001.png?v=1788364704 (R)-4-Phenyloxazolidin-2-one, 99% | 90319-52-1 (R)-4-Phenyloxazolidin-2-one, 99%|246001|90319-52-1 https://www.jk-sci.com/products/s57c4x-111826 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f962c610a9e0c15d5b8aad56a94b1873.jpg?v=1791383921 Avanafil Impurity 26, 99.80% | 330785-83-6 Avanafil Impurity 26|C4X-111826|330785-83-6 https://www.jk-sci.com/products/s57c4x-11186 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6de2c34e6153634afb4d2ff2bfd3b5ec.jpg?v=1791383900 Avanafil Impurity 6, 97.10% | 330784-50-4 Avanafil Impurity 6|C4X-11186|330784-50-4 https://www.jk-sci.com/products/a01246042 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/246042.png?v=1788925770 2-Isopropoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine, 98% | 871839-91-7 2-Isopropoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine, 98%|246042|871839-91-7 https://www.jk-sci.com/products/a012464791 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/984aaf8a5be82ce451750bd58d0d9b09.jpg?v=1788925745 (1,1':4',1"-Terphenyl)-2',4,4",5'-tetracarboxylic acid, 98% | 115101-93-4 (1,1':4',1"-Terphenyl)-2',4,4",5'-tetracarboxylic acid, 98%|2464791|115101-93-4 https://www.jk-sci.com/products/s57c4x-111897 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9c3241f6460c01d52f815dfc06bc940a.jpg?v=1791383869 Pyrimidin-4-ylmethanamine hydrochloride, Purity: 99.4% | 1138011-17-2 Pyrimidin-4-ylmethanamine hydrochloride|C4X-111897|1138011-17-2 https://www.jk-sci.com/products/j5305844 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a52f9b21462142adc2edf474e66cec30.jpg?v=1791417079 L-allo-Isoleucine, Chiral HPLC ≥ 99.5% (ee) || Purity by HPLC ≥ 99% | 1509-34-8 L-allo-Isoleucine|05844|1509-34-8 https://www.jk-sci.com/products/j5305838 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a7b7c88a9f83716a6eadb4882cd72191.jpg?v=1791417084 Ala-Ser-OH | 3303-41-1 Ala-Ser-OH|05838|3303-41-1 https://www.jk-sci.com/products/j5305851 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9cab5899b66966567e685bdd95742025.jpg?v=1791417067 Nw-(4-Methoxy-2,3,6-trimethylbenzenesulfonyl)-L-arginine tert-butyl ester, Assay ≥ 98% (Elemental analysis, Nth : 12.66%) | 115608-61-2 Nw-(4-Methoxy-2,3,6-trimethylbenzenesulfonyl)-L-arginine tert-butyl ester|05851|115608-61-2 https://www.jk-sci.com/products/j5305881 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a7834078400f71f66698fab4829938d2.jpg?v=1791417041 L-Asparagine tert-butyl ester, Purity by HPLC ? 98% | 25456-86-4 L-Asparagine tert-butyl ester|05881|25456-86-4 https://www.jk-sci.com/products/a01246910 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/246910.png?v=1790213031 Methyl indole-6-carboxylate, 98% | 50820-65-0 Methyl indole-6-carboxylate, 98%|246910|50820-65-0 https://www.jk-sci.com/products/j5305889 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/606454f127dbfe32ede3dd0c76b14b30.jpg?v=1791417029 L-Aspartic acid b-tert-butyl ester a-amide hydrochloride | 92786-68-0 L-Aspartic acid b-tert-butyl ester a-amide hydrochloride|05889|92786-68-0 https://www.jk-sci.com/products/a01246703 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/226587.png?v=1790601341 4-Hydroxyphenylboronic acid, 98% | 71597-85-8 4-Hydroxyphenylboronic acid, 98%|246703|71597-85-8 https://www.jk-sci.com/products/a01247434 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/161887.png?v=1790213017 2,4-Dichloro-5-nitropyrimidine, 97% | 49845-33-2 2,4-Dichloro-5-nitropyrimidine, 97%|247434|49845-33-2 https://www.jk-sci.com/products/a01247714 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/247714.png?v=1790170948 3-Lodo-4-methoxybenzoic acid, 98% | 68507-19-7 3-Lodo-4-methoxybenzoic acid, 98%|247714|68507-19-7 https://www.jk-sci.com/products/s57c4x-112034 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/412947_8770c903-36f5-43b3-a270-af08aa8557f3.png?v=1791383834 Benidipine Impurity 34, Purity: 99.9% | 3554-74-3 Benidipine Impurity 34|C4X-112034|3554-74-3 https://www.jk-sci.com/products/j5305918 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/097dd86374ac692043a59e02026051ad.jpg?v=1791417007 S-9-Fluorenylmethyl-L-cysteine hydrochloride | 84888-34-6 S-9-Fluorenylmethyl-L-cysteine hydrochloride|05918|84888-34-6 https://www.jk-sci.com/products/j5305875 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/26240a3809a4926a63a7162407a3ecc3.jpg?v=1791417047 Arg-Tyr-OH·AcOH | 74863-12-0 Arg-Tyr-OH·AcOH|05875|74863-12-0 https://www.jk-sci.com/products/j5305950 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f106f22991fd649cb79a9ae80e40ae5d.jpg?v=1791416967 S-4-Methoxybenzyl-D-cysteine, Purity by HPLC ≥ 97% | 58290-34-9 S-4-Methoxybenzyl-D-cysteine|05950|58290-34-9 https://www.jk-sci.com/products/j5305914 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1fb4615d251aeea71d3946205667d04a.jpg?v=1791417016 S-Benzyl-L-cysteine ethyl ester hydrochloride, Titration Chloride content : ≤ 13% (AgNO3) | 52844-67-4 S-Benzyl-L-cysteine ethyl ester hydrochloride|05914|52844-67-4 https://www.jk-sci.com/products/s57c4x-11214 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/48974884a63b9b60e8483496c7b6597f_3e5a43dd-0972-4027-95c5-7166a59393de.jpg?v=1791383801 Rabeprazole EP Impurity D, 96.00% | 924663-38-7 Rabeprazole EP Impurity D|C4X-11214|924663-38-7 https://www.jk-sci.com/products/s57c4x-1125109 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ae5e6bbf05b59fafcd47c0f61b06e980.jpg?v=1791383718 Palbociclib Impurity 109, Purity: 99.8% | 1974279-20-3 Palbociclib Impurity 109|C4X-1125109|1974279-20-3 https://www.jk-sci.com/products/s57c4x-11245 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/606765_8af6f07a-17d3-41e4-9550-211125ebbfea.png?v=1791383747 Sorafenib impurity C, Purity: 99.8% | 320-51-4 Sorafenib impurity C|C4X-11245|320-51-4 https://www.jk-sci.com/products/s57c4x-112115 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/795242_3dab294b-2302-4fa5-9fbc-7bc4d02500be.png?v=1791383818 Rabeprazole EP Impurity I, 94.90% | 924663-37-6 Rabeprazole EP Impurity I|C4X-112115|924663-37-6 https://www.jk-sci.com/products/j5305947 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fc858da25743855e8eeb7285c33eabbe.jpg?v=1791416972 cis-L-4-Hydroxyproline, Purity ≥ 99% (NMR) | 618-27-9 cis-L-4-Hydroxyproline|05947|618-27-9 https://www.jk-sci.com/products/j5305941 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/530f5b81147b1f653f666ec22c9f8bea.jpg?v=1791416981 D-Aspartic acid dibenzyl ester 4-toluenesulfonate salt | 4079-64-5 D-Aspartic acid dibenzyl ester 4-toluenesulfonate salt|05941|4079-64-5 https://www.jk-sci.com/products/j5305928 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4a4d260e8f9c9e14fd7f43ebf184e3a0.jpg?v=1791417002 D-Ala-Gly-OH | 3997-90-8 D-Ala-Gly-OH|05928|3997-90-8 https://www.jk-sci.com/products/s57c4x-112538 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2dd67106e2b83c0489fffe7c0905e804.jpg?v=1791383703 Palbociclib Impurity 38, 98.70% | 2206135-30-8 Palbociclib Impurity 38|C4X-112538|2206135-30-8 https://www.jk-sci.com/products/j5305971 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/66c116e6c43f706838d80b9c363fbf65.jpg?v=1791416951 Nim-Trityl-D-histidine, Purity by HPLC ≥ 99% | 199119-46-5 Nim-Trityl-D-histidine|05971|199119-46-5 https://www.jk-sci.com/products/a01247526 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/334949_da2411e5-63f0-4562-a33b-66901ccc74fe.png?v=1790213012 Caffeic acid, 99%, predominantly trans | 331-39-5 Caffeic acid, 99%, predominantly trans|247526|331-39-5 https://www.jk-sci.com/products/j5305938 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/39510d382a4841027208f2508609d5d7.jpg?v=1791416989 Nw-(4-Toluenesulfonyl)-D-arginine, Purity by HPLC ≥ 97% | 97233-92-6 Nw-(4-Toluenesulfonyl)-D-arginine|05938|97233-92-6 https://www.jk-sci.com/products/a01247654 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/247654.png?v=1788925689 Potassium tungstate, 99.5%, 60 mesh | 7790-60-5 Potassium tungstate, 99.5%, 60 mesh|247654|7790-60-5 https://www.jk-sci.com/products/j5305959 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/63a60f4a9b63108ad8f1d09131b3dfb1.jpg?v=1791416960 D-Glutamic acid di-tert-butyl ester hydrochloride, Purity by HPLC ≥ 98% | 172793-31-6 D-Glutamic acid di-tert-butyl ester hydrochloride|05959|172793-31-6 https://www.jk-sci.com/products/a01247904 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/365981.png?v=1788925680 Trimethylsulfoxonium iodide, 98% | 1774-47-6 Trimethylsulfoxonium iodide, 98%|247904|1774-47-6 https://www.jk-sci.com/products/a01248225 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/460388_7a0fe0ce-8f6b-49cf-a598-a07e5de1f055.png?v=1788925666 Uracil, 98% | 66-22-8 Uracil, 98%|248225|66-22-8 https://www.jk-sci.com/products/s57c4x-11266 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/586546_021f304e-3c6b-4e2a-b2ca-445d7a87db5a.png?v=1791383674 Nicotinic Acid EP Impurity F, 92.10% | 2047-49-6 Nicotinic Acid EP Impurity F|C4X-11266|2047-49-6 https://www.jk-sci.com/products/a019447480 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_25e6396f-a15b-4ddf-9467-9f64bd31637f.png?v=1787976917 CX-2, -Nboc Infrared dye, 95% CX-2, -Nboc Infrared dye, 95%|9447480 https://www.jk-sci.com/products/j5305984 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/07c6fb192f10598a6127ab48ff23cb25.jpg?v=1791416939 Ne-2-Chloro-Z-D-lysine | 201014-19-9 Ne-2-Chloro-Z-D-lysine|05984|201014-19-9 https://www.jk-sci.com/products/j5305987 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5ebc5e790c49b87b8a8d85cd80df2f31.jpg?v=1791416934 Ne-Z-D-lysine benzyl ester hydrochloride, Purity by HPLC ≥ 98% | 156917-23-6 Ne-Z-D-lysine benzyl ester hydrochloride|05987|156917-23-6 https://www.jk-sci.com/products/j5306000 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/641794527348f54437ed5f69e613b04f.jpg?v=1791416917 D-Proline tert-butyl ester, Purity by HPLC ≥ 99% | 90071-62-8 D-Proline tert-butyl ester|06000|90071-62-8 https://www.jk-sci.com/products/j5306012 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3ab12a842cfafb35e685201fabcc7c90.jpg?v=1791416912 O-Methyl-D-tyrosine, Purity by HPLC ≥ 99% | 39878-65-4 O-Methyl-D-tyrosine|06012|39878-65-4 https://www.jk-sci.com/products/j5306018 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1c125b16687d3dd8be77e86b639cc3e0.jpg?v=1791416905 3-(1-Naphthyl)-DL-alanine, Purity by HPLC ≥ 98% | 28095-56-9 3-(1-Naphthyl)-DL-alanine|06018|28095-56-9 https://www.jk-sci.com/products/j5303221 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3e651e43e8cec7c21d18d25225dca863.jpg?v=1791419686 Boc-O-benzyl-D-serinol, Purity by HPLC ≥ 99% | 127559-33-5 Boc-O-benzyl-D-serinol|03221|127559-33-5 https://www.jk-sci.com/products/a019447481 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_70ce4f65-d2b3-4b87-b7e2-957afc67da22.png?v=1787976916 CX-2, -Mal Infrared dye, 95% CX-2, -Mal Infrared dye, 95%|9447481 https://www.jk-sci.com/products/s57c4x-112814 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3b19243fb167942afede01d943418b4b.jpg?v=1791383657 Sildenafil EP Impurity B, 94.90% | 1094598-75-0 Sildenafil EP Impurity B|C4X-112814|1094598-75-0 https://www.jk-sci.com/products/j5304278 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4ca18668030cedd82f6b19892ec1fc2f.jpg?v=1791418527 2-Chlorotrityl 5-nitroanthranilic acid resin, Substitution (meq/g) 0.97 meq/g 2-Chlorotrityl 5-nitroanthranilic acid resin|04278 https://www.jk-sci.com/products/j5305174 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1187e24a0d17096039f3887b70605bc6.jpg?v=1791417733 Fmoc-L-pipecolic acid 4-alkoxybenzyl alcohol resin, Mesh Size 100 - 200 mesh || Substitution (meq/g) 0.3 - 0.8 meq/g Fmoc-L-pipecolic acid 4-alkoxybenzyl alcohol resin|05174 https://www.jk-sci.com/products/j5304577 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9806c125c5ae32fb09d7f7efd514b57c.jpg?v=1791418222 Leu-Leu-OH, Purity by HPLC ≥ 96% | 3303-31-9 Leu-Leu-OH|04577|3303-31-9 https://www.jk-sci.com/products/s57c4x-112819 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b82a763a7bae204ffab65cb8279d2315.jpg?v=1791383652 Sildenafil EP Impurity G, 96.30% | 1346602-67-2 Sildenafil EP Impurity G|C4X-112819|1346602-67-2 https://www.jk-sci.com/products/j5305108 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7c92b659d6bd5d7b34457158d544dc31.jpg?v=1791417813 Boc-L-a-aminobutyric acid dicyclohexylammonium salt, Purity by HPLC ≥ 99% | 34306-42-8 Boc-L-a-aminobutyric acid dicyclohexylammonium salt|05108|34306-42-8 https://www.jk-sci.com/products/j5304951 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/01e609b41a8b3a649081d86595fe77b4.jpg?v=1791418007 Boc-(3S,4S)-4-amino-3-hydroxy-5-methylhexanoic acid dicyclohexylammonium salt, Purity by HPLC ≥ 97% | 204192-31-4 Boc-(3S,4S)-4-amino-3-hydroxy-5-methylhexanoic acid dicyclohexylammonium salt|04951|204192-31-4 https://www.jk-sci.com/products/j5305336 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b98331d93e169202d23f6c77a40f59d6.jpg?v=1791417608 Fmoc-O-tert-butyl-transL-hydroxyproline 4-alkoxybenzyl alcohol resin, Mesh Size 100-200 || Substitution (meq/g) 0.3-0.8 Fmoc-O-tert-butyl-transL-hydroxyproline 4-alkoxybenzyl alcohol resin|05336 https://www.jk-sci.com/products/j5305456 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c9d7167f363577f8cbc13c0f25ed8b66.jpg?v=1791417511 Na-Boc-Nw-(2,2,4,6,7-pentamethylchroman-6-sufonyl)-L-arginine, Purity by HPLC ≥ 99% | 200125-12-8 Na-Boc-Nw-(2,2,4,6,7-pentamethylchroman-6-sufonyl)-L-arginine|05456|200125-12-8 https://www.jk-sci.com/products/s57c4x-1128245 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_f8b80e4f-1f47-426f-8b6c-94c83b66eacc.png?v=1791383642 Sildenafil Impurity 245, 99.00% Sildenafil Impurity 245|C4X-1128245 https://www.jk-sci.com/products/s57c4x-112840 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/784605_aee85231-3531-438c-8630-f68781da96a5.png?v=1791383621 Sildenafil Impurity 40, 99.10% | 1185292-79-8 Sildenafil Impurity 40|C4X-112840|1185292-79-8 https://www.jk-sci.com/products/s57c4x-112872 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5f29bb4e8fd6cd241e3126cfceec5ca9.jpg?v=1791383612 Sildenafil Impurity 72, 96.30% | 2840532-32-1 Sildenafil Impurity 72|C4X-112872|2840532-32-1 https://www.jk-sci.com/products/s57c4x-11283 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/393939_d60ea68a-99ae-4946-816f-9b12c91bcc3f.png?v=1791383631 Sildenafil Impurity 3, 99.90% | 139756-02-8 Sildenafil Impurity 3|C4X-11283|139756-02-8 https://www.jk-sci.com/products/j5305490 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f0f19161b120a9039b5fd7487bba9cd8.jpg?v=1791417464 Boc-D-glutamic acid a-9-fluorenylmethyl ester, Assay ≥ 98% | 214630-10-1 Boc-D-glutamic acid a-9-fluorenylmethyl ester|05490|214630-10-1 https://www.jk-sci.com/products/s57c4x-112893 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_2e066074-fdee-4458-8b4d-9bd7d702fad4.png?v=1791383605 Sildenafil Impurity 93, 99.80% Sildenafil Impurity 93|C4X-112893 https://www.jk-sci.com/products/j5305514 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d0e25e67dbf23adf197073a004eeabb6.jpg?v=1791417421 Boc-S-4-methoxybenzyl-D-penicillamine, Purity by HPLC ≥ 99% | 106306-57-4 Boc-S-4-methoxybenzyl-D-penicillamine|05514|106306-57-4 https://www.jk-sci.com/products/a019447482 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_497ab8d2-afdc-480a-9284-582e46d5f455.png?v=1787976912 CX-3 Infrared dye, 95%, Excitation/emission wavelength: 1089/1140 CX-3 Infrared dye, 95%, Excitation/emission wavelength: 1089/1140|9447482 https://www.jk-sci.com/products/j5305549 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e7d40522f7917d1e9cd14bd1804f0105.jpg?v=1791417388 Boc-Leu-Leu-OH, Purity by HPLC ≥ 99% | 73401-65-7 Boc-Leu-Leu-OH|05549|73401-65-7 https://www.jk-sci.com/products/j5305573 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/89d122c2791e928fd0cc6f7698a9797b.jpg?v=1791417357 Boc-N-methyl-L-phenylglycine, Purity by HPLC ≥ 99% | 30925-11-2 Boc-N-methyl-L-phenylglycine|05573|30925-11-2 https://www.jk-sci.com/products/s57c4x-112925 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d3a0159a37b81c74c5f938fb8050392f.jpg?v=1791383595 Arbidol Impurity 25, 96.80% | 110543-98-1 Arbidol Impurity 25|C4X-112925|110543-98-1 https://www.jk-sci.com/products/a019447492 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_9a66b4f7-baec-4f5a-8bcb-6b1fe6047782.png?v=1787976895 BTC980 Infrared dye, 95%, Excitation/emission wavelength: 932/980 BTC980 Infrared dye, 95%, Excitation/emission wavelength: 932/980|9447492 https://www.jk-sci.com/products/j5305614 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e37e3c291735bc7d3ec3c3675bfee1d2.jpg?v=1791417313 Boc-Val-Gly-OH, Purity by HPLC ≥ 95% | 45233-75-8 Boc-Val-Gly-OH|05614|45233-75-8 https://www.jk-sci.com/products/a019447493 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_b2ae96c8-055b-4fd6-a48a-fa952be08a39.png?v=1787976895 BTC982 Infrared dye, 95%, Excitation/emission wavelength: 944/982 BTC982 Infrared dye, 95%, Excitation/emission wavelength: 944/982|9447493 https://www.jk-sci.com/products/s57c4x-112941 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4689ec822060b48e1aa0f5743f53b78d.jpg?v=1791383579 Arbidol Impurity 41, 98.80% | 40945-68-4 Arbidol Impurity 41|C4X-112941|40945-68-4 https://www.jk-sci.com/products/j5305689 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ea14d2e86ad2b6379783b05360de8633.jpg?v=1791417243 Fmoc-D-aspartic acid a-amide, Purity by HPLC ≥ 98% | 200335-41-7 Fmoc-D-aspartic acid a-amide|05689|200335-41-7 https://www.jk-sci.com/products/j5305750 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1782b9a3b0a6dd50eaac7ee33301efe8.jpg?v=1791417157 Fmoc-4-(Boc-amino)-D-phenylalanine, Purity ≥ 98% | 214750-77-3 Fmoc-4-(Boc-amino)-D-phenylalanine|05750|214750-77-3 https://www.jk-sci.com/products/j5305721 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0e776ece127c50e334f742b9512bf14f.jpg?v=1791417210 Na-Fmoc-L-histidine, Purity by HPLC ? 98% | 116611-64-4 Na-Fmoc-L-histidine|05721|116611-64-4 https://www.jk-sci.com/products/a019447494 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_9ff2c683-a91d-4d1b-9803-6d36ca3c1535.png?v=1787976894 BTC1070 Infrared dye, 95%, Excitation/emission wavelength: 1014/1070 BTC1070 Infrared dye, 95%, Excitation/emission wavelength: 1014/1070|9447494 https://www.jk-sci.com/products/s57c4x-11301 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8dba803dbe923d06188d1cbb3235b6e2.jpg?v=1791383565 Ilaprazole Impurity 1, 93.20% | 172152-37-3 Ilaprazole Impurity 1|C4X-11301|172152-37-3 https://www.jk-sci.com/products/j5305830 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9ea0174b545f203840879defe2b6c2e8.jpg?v=1791417093 Ala-Lys-OH·HCl, Purity by HPLC ≥ 99% | 68973-27-3 Ala-Lys-OH·HCl|05830|68973-27-3 https://www.jk-sci.com/products/j5305805 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a854b8cd18b27330c97110441674e451.jpg?v=1791417117 3,5-Diiodo-D-tyrosine, Purity by HPLC ≥ 98% | 16711-71-0 3,5-Diiodo-D-tyrosine|05805|16711-71-0 https://www.jk-sci.com/products/j5305843 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5d73500525f9c3ad0dfbb18ec87130f5.jpg?v=1791417079 Ala-Val-OH, Purity by HPLC ≥ 98% | 3303-45-5 Ala-Val-OH|05843|3303-45-5 https://www.jk-sci.com/products/s57c4x-1130180 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_d6cc0460-f185-4f60-9224-0262b6b0999b.png?v=1791383554 Ilaprazole Impurity 180, Purity: 99.6% Ilaprazole Impurity 180|C4X-1130180 https://www.jk-sci.com/products/j5305855 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7d1bb3d61f72009f9eef226ac8df1511.jpg?v=1791417062 Nw-(2,2,4,6,7-Pentamethyldihydrobenzofuran-5-sulfonyl)-L-arginine, Chiral HPLC ≥ 99.5% (ee) || Purity by HPLC ≥ 99% | 200115-86-2 Nw-(2,2,4,6,7-Pentamethyldihydrobenzofuran-5-sulfonyl)-L-arginine|05855|200115-86-2 https://www.jk-sci.com/products/j5305888 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/27316e985dba7ed6483eb289129ef1ac.jpg?v=1791417030 L-Aspartic acid b-tert-butyl ester a-allyl ester hydrochloride, Purity ≥ 98% (NMR) | 218938-66-0 L-Aspartic acid b-tert-butyl ester a-allyl ester hydrochloride|05888|218938-66-0 https://www.jk-sci.com/products/s57c4x-113017 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b5b92e47544d0469fbdd5e47a5eec895.jpg?v=1791383559 Ilaprazole Impurity 17, 97.40% | 172152-35-1 Ilaprazole Impurity 17|C4X-113017|172152-35-1 https://www.jk-sci.com/products/a019447495 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_d15c3789-83ef-40a5-8d5b-099841ad70cd.png?v=1787976891 LZ-1060 Infrared dye, 95%, Excitation/emission wavelength: 883/1060 LZ-1060 Infrared dye, 95%, Excitation/emission wavelength: 883/1060|9447495 https://www.jk-sci.com/products/j5305916 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a124cf4b485ef96e2c0ef1390a5ab448.jpg?v=1791417012 S-Benzyl-L-cysteine b-naphthylamide | 7436-63-7 S-Benzyl-L-cysteine b-naphthylamide|05916|7436-63-7 https://www.jk-sci.com/products/j5305935 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ec33ab619ae24c32990cc3ead9f53ec8.jpg?v=1791416994 D-allo-Isoleucine, Assay by titration 98.5 - 101.0% || Chiral HPLC ≥ 99% | 1509-35-9 D-allo-Isoleucine|05935|1509-35-9 https://www.jk-sci.com/products/a019447496 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_fd204c09-2c01-4de3-a268-89a2801010cb.png?v=1787976891 LZ-1092 Infrared dye, 95%, Excitation/emission wavelength: 1035/1092 LZ-1092 Infrared dye, 95%, Excitation/emission wavelength: 1035/1092|9447496 https://www.jk-sci.com/products/a019447497 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_f3105583-f142-44c7-9fe6-7d88c6ac04a2.png?v=1787976888 LZ-1105 Infrared dye, 95%, Excitation/emission wavelength: 1041/1105 LZ-1105 Infrared dye, 95%, Excitation/emission wavelength: 1041/1105|9447497 https://www.jk-sci.com/products/s57c4x-11303 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_dee7f6a6-636b-4f45-b269-6cda26ace181.png?v=1791383534 Ilaprazole Impurity 3, Purity: 98.0% Ilaprazole Impurity 3|C4X-11303 https://www.jk-sci.com/products/a019447498 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_025b19ef-dfcf-4ce5-8df8-435ab819e489.png?v=1787976887 LZ-1118 Infrared dye, 95%, Excitation/emission wavelength: 1052/1118 LZ-1118 Infrared dye, 95%, Excitation/emission wavelength: 1052/1118|9447498 https://www.jk-sci.com/products/j5305957 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/810c2c626b6b83b62c94a478f8ae6a6d.jpg?v=1791416960 D-Glutamic acid g-methyl ester, Purity by HPLC ≥ 99% | 6461-04-7 D-Glutamic acid g-methyl ester|05957|6461-04-7 https://www.jk-sci.com/products/j5305944 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a0fb31733a6109ac6b15eb4c9f50d763.jpg?v=1791416976 D-Aspartic acid a-amide hydrochloride, Purity ≥ 98% | 200260-37-3 D-Aspartic acid a-amide hydrochloride|05944|200260-37-3 https://www.jk-sci.com/products/j5305972 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f0462d0673df4e9d9759f91cde70b16c.jpg?v=1791416950 Nim-Trityl-D-histidine methyl ester hydrochloride | 200927-02-2 Nim-Trityl-D-histidine methyl ester hydrochloride|05972|200927-02-2 https://www.jk-sci.com/products/j5305990 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f46c16e643afbb0b005c4e32ef6db5db.jpg?v=1791416929 Nd-Z-D-ornithine | 16937-91-0 Nd-Z-D-ornithine|05990|16937-91-0 https://www.jk-sci.com/products/s57c4x-113035 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_47b59f4c-c90d-4168-8933-83cb81c17d07.png?v=1791383526 Ilaprazole Impurity 35, 91.30% Ilaprazole Impurity 35|C4X-113035 https://www.jk-sci.com/products/j5306013 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d5d344de5b812498937d04036e8e8561.jpg?v=1791416906 D-Valine benzyl ester 4-toluenesulfonate salt, Purity by HPLC ≥ 98% | 17662-84-9 D-Valine benzyl ester 4-toluenesulfonate salt|06013|17662-84-9 https://www.jk-sci.com/products/a01944781 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/432533.png?v=1790205891 Gallium nitride, 99.99% | 25617-97-4 Gallium nitride, 99.99%|944781|25617-97-4 https://www.jk-sci.com/products/j5306052 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/687bcb6b4c3ba09cc2d6d4c42b80c2db.jpg?v=1791416868 L-Glutamic acid a-4-nitroanilide, Assay by titration ≥ 98% || Purity by HPLC ≥ 99% | 24032-35-7 L-Glutamic acid a-4-nitroanilide|06052|24032-35-7 https://www.jk-sci.com/products/s57c4x-11305 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fd97092e7b0bc1b05fffed0a9372118e.jpg?v=1791383514 Ilaprazole Impurity 5, 97.90% | 2285346-44-1 Ilaprazole Impurity 5|C4X-11305|2285346-44-1 https://www.jk-sci.com/products/j5306072 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6d20982db4cf5ab9f05f3ba8cc263be1.jpg?v=1791416846 Nim-Benzyl-L-histidine methyl ester dihydrochloride, Assay ≥ 69% (Elemental analysis based on Nitrogen content) || Titration Chloride | 93983-56-3 Nim-Benzyl-L-histidine methyl ester dihydrochloride|06072|93983-56-3 https://www.jk-sci.com/products/j5306078 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bdb60c920f04c9f353306061ad1fd7c3.jpg?v=1791416841 L-Histidine 7-amido-4-methylcoumarin, Assay ≥ 98% | 191723-64-5 L-Histidine 7-amido-4-methylcoumarin|06078|191723-64-5 https://www.jk-sci.com/products/j5306095 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/974822d8fc4a95470e35b65698fc2ed9.jpg?v=1791416824 trans-L-4-Hydroxyproline benzyl ester hydrochloride, Purity by HPLC ≥ 98% | 62147-27-7 trans-L-4-Hydroxyproline benzyl ester hydrochloride|06095|62147-27-7 https://www.jk-sci.com/products/s57c4x-113069 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_7661500f-9172-4a97-a035-30602695e29f.png?v=1791383503 Ilaprazole Impurity 69, 95.90% Ilaprazole Impurity 69|C4X-113069 https://www.jk-sci.com/products/j5306133 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/372942a9cc2cdfa60fd0c2f5ce30e359.jpg?v=1791416798 Ne-Methyl-L-lysine hydrochloride, Purity ≥ 98% (NMR) | 7622-29-9 Ne-Methyl-L-lysine hydrochloride|06133|7622-29-9 https://www.jk-sci.com/products/j5306129 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2d40011e8dfd53e81d4fcf089e49e22f.jpg?v=1791416803 Ne-Allyloxycarbonyl-L-lysine, Purity by HPLC ≥ 98% | 6298-03-9 Ne-Allyloxycarbonyl-L-lysine|06129|6298-03-9 https://www.jk-sci.com/products/j5306147 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3d98ae47f853e1c4a6bf7226aa382ce0.jpg?v=1791416780 Nd-Pyrazinylcarbonyl-L-ornithine, Assay by titration ≥ 99% || Purity by HPLC ≥ 99% | 201047-84-9 Nd-Pyrazinylcarbonyl-L-ornithine|06147|201047-84-9 https://www.jk-sci.com/products/j5306144 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c890d4f5de3ce0d75bb1ed53cee476a7.jpg?v=1791416786 L-Norvaline methyl ester hydrochloride, Purity by HPLC ≥ 99.9% | 56558-30-6 L-Norvaline methyl ester hydrochloride|06144|56558-30-6 https://www.jk-sci.com/products/j5306168 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/909c44f1ac3454ee94e0d39b601beed3.jpg?v=1791416765 4-Chloro-D-phenylalanine methyl ester hydrochloride, Purity by HPLC ≥ 98% | 33965-47-8 4-Chloro-D-phenylalanine methyl ester hydrochloride|06168|33965-47-8 https://www.jk-sci.com/products/j5306194 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4fd4b5289d3d17f0d7c69c920d9c9171.jpg?v=1791416730 L-Proline 4-methoxy-b-naphthylamide hydrochloride | 100930-07-2 L-Proline 4-methoxy-b-naphthylamide hydrochloride|06194|100930-07-2 https://www.jk-sci.com/products/j5306181 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2ebfae7636e44517d90ae83869639a41.jpg?v=1791416746 Phe-Phe-OH, Purity by HPLC ≥ 98% | 2577-40-4 Phe-Phe-OH|06181|2577-40-4 https://www.jk-sci.com/products/j5306204 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d4859f05c3bab658814d8fe910644722.jpg?v=1791416720 L-Proline 4-nitroanilide hydrobromide, Purity by HPLC ≥ 97% | 7369-91-7 L-Proline 4-nitroanilide hydrobromide|06204|7369-91-7 https://www.jk-sci.com/products/j5306213 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/35a2f232147d644ea5a580e03012af1a.jpg?v=1791416715 3-(2'-Pyridyl)-DL-alanine | 17407-44-2 3-(2'-Pyridyl)-DL-alanine|06213|17407-44-2 https://www.jk-sci.com/products/j5306226 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/69254e7853b84e70031ff62c0a82406e.jpg?v=1791416703 b-Chloro-L-alanine, Purity by HPLC ≥ 95% | 2731-73-9 b-Chloro-L-alanine|06226|2731-73-9 https://www.jk-sci.com/products/j5306228 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/be3fa24842662438aac95c015a0a4acc.jpg?v=1791416703 b-Chloro-L-alanine methyl ester hydrochloride, Purity ≥ 98% (NMR) | 17136-54-8 b-Chloro-L-alanine methyl ester hydrochloride|06228|17136-54-8 https://www.jk-sci.com/products/j5306245 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/281941201d7270b9ec545713a9820ad1.jpg?v=1791416685 L-Threonine tert-butyl ester hydrochloride, Assay by titration ≥ 99.9% | 69320-90-7 L-Threonine tert-butyl ester hydrochloride|06245|69320-90-7 https://www.jk-sci.com/products/j5306251 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/65f8bacc316898f28583c483962900d2.jpg?v=1791416674 O-Methyl-L-tyrosine, Purity by HPLC ≥ 99% | 6230-11-1 O-Methyl-L-tyrosine|06251|6230-11-1 https://www.jk-sci.com/products/j5306257 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bb0200116c28e73ae9807d94deb73b14.jpg?v=1791416669 L-Tyrosine methyl ester, Purity by HPLC ≥ 99% | 1080-06-4 L-Tyrosine methyl ester|06257|1080-06-4 https://www.jk-sci.com/products/s57c4x-1131 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7188056043aaa490cd8efefb447e77a2.jpg?v=1791383492 Brexpiprazole, 99.40% | 913611-97-9 Brexpiprazole|C4X-1131|913611-97-9 https://www.jk-sci.com/products/a019447907 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_13cb857a-f0b1-4270-b5e2-143caf3b1622.png?v=1787976862 Perovskite based coating solution, Preparation of high-purity raw materials above AR level and ultra dry solvents Perovskite based coating solution, Preparation of high-purity raw materials above AR level and ultra dry solvents|9447907 https://www.jk-sci.com/products/j5306282 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/43abfa58244ac8b3b1489f3f2979f0bc.jpg?v=1791416643 L-allo-Threoninol, Purity ≥ 98% | 108102-48-3 L-allo-Threoninol|06282|108102-48-3 https://www.jk-sci.com/products/j5306285 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9151ba92ccb4f655085beff5e526ce2e.jpg?v=1791416643 L-Histidinol dihydrochloride, Assay ≥ 98% (Elemental analysis) | 1596-64-1 L-Histidinol dihydrochloride|06285|1596-64-1 https://www.jk-sci.com/products/s57c4x-113117 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9491cbc46d79a8fdefe94f2b0febe138.jpg?v=1791383461 Brexpiprazole Impurity 17, 98.20% | 2116542-20-0 Brexpiprazole Impurity 17|C4X-113117|2116542-20-0 https://www.jk-sci.com/products/s57c4x-113131 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8cca783c60a21f0782ffa0cf3d2d8dd5.jpg?v=1791383440 Brexpiprazole Impurity 31, 98.00% | 95-15-8 Brexpiprazole Impurity 31|C4X-113131|95-15-8 https://www.jk-sci.com/products/j5306302 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0e340e0ce4ecc0094aafa5a7ae364e2e.jpg?v=1791416614 Na-Boc-Nb-bromoacetyl-L-2,3-diaminopropionic acid, Purity ≥ 98% | 135630-90-9 Na-Boc-Nb-bromoacetyl-L-2,3-diaminopropionic acid|06302|135630-90-9 https://www.jk-sci.com/products/j5306296 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dda168acf7cffcc2fb7e828933aec0bd.jpg?v=1791416624 Na-Boc-Ng-allyloxycarbonyl-L-2,4-diaminobutyric acid dicyclohexyl ammonium salt, Assay by titration 99 - 101% || Purity by HPLC ≥ 98% | 327156-92-3 Na-Boc-Ng-allyloxycarbonyl-L-2,4-diaminobutyric acid dicyclohexyl ammonium salt|06296|327156-92-3 https://www.jk-sci.com/products/s57c4x-11314 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/497471_86b47e6d-c72a-4db2-be84-8bdb1b7ff1c6.png?v=1791383435 Brexpiprazole Impurity 4, 99.40% | 70500-72-0 Brexpiprazole Impurity 4|C4X-11314|70500-72-0 https://www.jk-sci.com/products/j5306318 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7c0144fc0f7a3db184e7ac54d65f579c.jpg?v=1791416595 Na,g-Bis-Boc-D-2,4-diaminobutyric acid dicyclohexylammonium salt, Purity by HPLC ≥ 99% | 752986-92-8 Na,g-Bis-Boc-D-2,4-diaminobutyric acid dicyclohexylammonium salt|06318|752986-92-8 https://www.jk-sci.com/products/j5306334 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/638836283b9d8d33647bc7b59ca90f10.jpg?v=1791416569 N-Methyl-a-aminoisobutyric acid hydrochloride | 2566-34-9 N-Methyl-a-aminoisobutyric acid hydrochloride|06334|2566-34-9 https://www.jk-sci.com/products/s57c4x-113149 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8efe17c955f2fd1bdaf1c3073fdac520.jpg?v=1791383417 Brexpiprazole Impurity 49, 91.40% | 2116542-21-1 Brexpiprazole Impurity 49|C4X-113149|2116542-21-1 https://www.jk-sci.com/products/j5306343 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/13d85206445ad297b41a8e5490cba1c3.jpg?v=1791416548 N-Methyl-DL-leucine hydrochloride, Purity ≥ 98% (NMR) | 2566-33-8 N-Methyl-DL-leucine hydrochloride|06343|2566-33-8 https://www.jk-sci.com/products/j5305129 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/16bc5099f90920d0307e79a5f4bfba6b.jpg?v=1791417766 Boc-4-(2-chloro-Z-amino)-L-phenylalanine, Purity by HPLC ≥ 98% | 198475-65-9 Boc-4-(2-chloro-Z-amino)-L-phenylalanine|05129|198475-65-9 https://www.jk-sci.com/products/j5304778 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2c3029cab061a42b51500a383a2cb74e.jpg?v=1791418142 TentaGel S PHB (0.2 - 0.3 meq/g, 90 μm), Mesh Size 90 μm mesh || Substitution (meq/g) 0.2-0.3 meq/g TentaGel S PHB (0.2 - 0.3 meq/g, 90 μm)|04778 https://www.jk-sci.com/products/j5304080 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2c3b392721838060d797c202c934a9bf.jpg?v=1791418782 H-p-Phenyl-L-phenylalanine, Purity by HPLC ≥ 99.0% | 155760-02-4 H-p-Phenyl-L-phenylalanine|04080|155760-02-4 https://www.jk-sci.com/products/s57c4x-11317 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/abff436b97eb880af43ed19a5bcda9cb.jpg?v=1791383406 Brexpiprazole Impurity 7, 96.20% | 913613-82-8 Brexpiprazole Impurity 7|C4X-11317|913613-82-8 https://www.jk-sci.com/products/j5305427 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/144d2e582a7cfecd1390ebf0b0056d46.jpg?v=1791417531 Ac-Gly-Gly-OH, Purity by HPLC ≥ 98% | 5687-48-9 Ac-Gly-Gly-OH|05427|5687-48-9 https://www.jk-sci.com/products/a019447908 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_c00eb703-7a7d-45d6-b553-25b56404cd2e.png?v=1787976860 Can apply SAM solution on a large area, Preparation of multiple chromatographic grade SAM raw materials and environmentally friendly ultra dry solvents Can apply SAM solution on a large area, Preparation of multiple chromatographic grade SAM raw materials and environmentally friendly ultra dry solvents|9447908 https://www.jk-sci.com/products/j5305502 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3837e85a7ced4bb617b7cee19308b63f.jpg?v=1791417448 Boc-D-aspartic acid a-amide, Purity by HPLC ≥ 98% | 200282-47-9 Boc-D-aspartic acid a-amide|05502|200282-47-9 https://www.jk-sci.com/products/j5305565 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/663f56961aaa6b372e8c5198368e149f.jpg?v=1791417369 Boc-N-methyl-D-isoleucine, Assay ≥ 99% | 267223-87-0 Boc-N-methyl-D-isoleucine|05565|267223-87-0 https://www.jk-sci.com/products/j5305646 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d9845cbd24b812a963965a13eb729cc6.jpg?v=1791417275 D-a-Hydroxyisovaleric acid, Assay ≥ 98% | 17407-56-6 D-a-Hydroxyisovaleric acid|05646|17407-56-6 https://www.jk-sci.com/products/j5305737 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d29a085ec2acbe2ab0d00cbc661f4c2a.jpg?v=1791417178 Na-Fmoc-Ne-palmitoyl-L-lysine, Purity by HPLC ≥ 97% | 201004-46-8 Na-Fmoc-Ne-palmitoyl-L-lysine|05737|201004-46-8 https://www.jk-sci.com/products/j5305812 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/452ed466791495cd7a5cdcd4d99f2187.jpg?v=1791417104 L-a-Aminobutyric acid amide hydrochloride, Purity by HPLC ≥ 98% | 7682-20-4 L-a-Aminobutyric acid amide hydrochloride|05812|7682-20-4 https://www.jk-sci.com/products/j5305850 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d8b6b73a69b6de9af6a9cbee62c11d15.jpg?v=1791417067 Nw-Methyl-L-arginine hydrochloride, Purity by HPLC ≥ 95% | 156706-47-7 Nw-Methyl-L-arginine hydrochloride|05850|156706-47-7 https://www.jk-sci.com/products/a019447909 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_f18bb453-deea-4215-9a0f-844bb30709db.png?v=1787976858 NiO coating solution, Preparation of AR grade high-purity raw materials and solvents NiO coating solution, Preparation of AR grade high-purity raw materials and solvents|9447909 https://www.jk-sci.com/products/j5305901 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c263a7fdb2792065bcebaa38638bcaaf.jpg?v=1791417029 L-Aspartic acid a-4-nitroanilide, Assay by titration ≥ 97% || Purity by HPLC ≥ 99% | 154564-03-1 L-Aspartic acid a-4-nitroanilide|05901|154564-03-1 https://www.jk-sci.com/products/j5305940 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b55bae2d89a23234c68c5cb7b5a021bf.jpg?v=1791416985 Ng-4-Methyltrityl-D-asparagine, Purity by HPLC ≥ 98% | 200203-23-2 Ng-4-Methyltrityl-D-asparagine|05940|200203-23-2 https://www.jk-sci.com/products/s57c4x-113194 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_fdf13410-3a12-4cb5-9b19-07914ab03487.png?v=1791383390 Brexpiprazole Impurity 94, 97.60% Brexpiprazole Impurity 94|C4X-113194 https://www.jk-sci.com/products/s57c4x-1132107 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b37777f38e27e7034c7e800163b3562f.jpg?v=1791383378 Atorvastatin Impurity 107, 94.90% | 125995-17-7 Atorvastatin Impurity 107|C4X-1132107|125995-17-7 https://www.jk-sci.com/products/s57c4x-1132149 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_8729126a-5c8d-4be5-80ad-190fed05d8cf.png?v=1791383366 Atorvastatin Impurity 149, 86.60% Atorvastatin Impurity 149|C4X-1132149 https://www.jk-sci.com/products/s57c4x-1132150 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/37c66ce08600d870684536076f541811.jpg?v=1791383360 Atorvastatin Impurity 150, 98.60% | 676260-66-5 Atorvastatin Impurity 150|C4X-1132150|676260-66-5 https://www.jk-sci.com/products/s57c4x-1132161 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_3052e0f3-3e9b-4092-a846-acac741cc090.png?v=1791383357 Atorvastatin impurity 161, Purity: 95.6% Atorvastatin impurity 161|C4X-1132161 https://www.jk-sci.com/products/s57c4x-113218 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_3b05a0de-60cc-4e69-b645-9e04a2631b02.png?v=1791383355 Atorvastatin 3-Deoxy-Hept-2-Enoic Acid Sodium Salt, Purity: 95.4% Atorvastatin 3-Deoxy-Hept-2-Enoic Acid Sodium Salt|C4X-113218 https://www.jk-sci.com/products/j5305969 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/680b2e69ed12be4747e471d16cb41eff.jpg?v=1791416955 D-Glutamic acid a-tert-butyl ester hydrochloride, Purity by HPLC ≥ 98% | 200616-62-2 D-Glutamic acid a-tert-butyl ester hydrochloride|05969|200616-62-2 https://www.jk-sci.com/products/s57c4x-113220 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7eface27a101365f736431fae183182d.jpg?v=1791383351 Atorvastatin Methyl Ester Impurity, 95.40% | 345891-62-5 Atorvastatin Methyl Ester Impurity|C4X-113220|345891-62-5 https://www.jk-sci.com/products/s57c4x-113223 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/382746.png?v=1791383346 Atorvastatin EP Impurity I, 97.90% | 125971-95-1 Atorvastatin EP Impurity I|C4X-113223|125971-95-1 https://www.jk-sci.com/products/s57c4x-113244 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_04c4c42e-9ad0-4b89-8dae-814f741cb567.png?v=1791383340 Atorvastatin Impurity 44, 90.50% Atorvastatin Impurity 44|C4X-113244 https://www.jk-sci.com/products/s57c4x-11324 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c46ce6797c412705c54e9a070af7b2ed.jpg?v=1791383342 Atorvastatin EP Impurity D, 99.40% | 148146-51-4 Atorvastatin EP Impurity D|C4X-11324|148146-51-4 https://www.jk-sci.com/products/j5306005 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/253f9e493da39f871bedcef6442449f9.jpg?v=1791416922 O-Benzyl-D-threonine amide hydrochloride, Assay ≥ 99% (Nth 11.45% by elemental analysis) || Titration ≤ 15% Chloride conte | 201275-09-4 O-Benzyl-D-threonine amide hydrochloride|06005|201275-09-4 https://www.jk-sci.com/products/j5306037 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5c77919a1b869ed6c6fb1caa7e35c6f7.jpg?v=1791416882 L-Glutamine a-tert-butyl ester hydrochloride, Assay ≥ 98% | 39741-62-3 L-Glutamine a-tert-butyl ester hydrochloride|06037|39741-62-3 https://www.jk-sci.com/products/j5306075 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1f6ab5aa52ab250aff2d043d49688963.jpg?v=1791416846 Nim-Trityl-L-histidine methyl ester hydrochloride, Purity by HPLC ≥ 98% | 32946-56-8 Nim-Trityl-L-histidine methyl ester hydrochloride|06075|32946-56-8 https://www.jk-sci.com/products/j5306105 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/65598a194cd2956b1110758ca81bc917.jpg?v=1791416820 Ile-Gly-OH, Purity by HPLC ≥ 98% | 868-28-0 Ile-Gly-OH|06105|868-28-0 https://www.jk-sci.com/products/j5306137 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e347ee78d1e34ed68d7cad22783e5213.jpg?v=1791416792 3-Fluoro-D-phenylalanine methyl ester hydrochloride, Purity by HPLC ≥ 99% | 201479-09-6 3-Fluoro-D-phenylalanine methyl ester hydrochloride|06137|201479-09-6 https://www.jk-sci.com/products/j5306183 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/31d1904658dd54f772c6d56917af8c87.jpg?v=1791416746 L-Phenylalanine pyrrolidide | 56414-89-2 L-Phenylalanine pyrrolidide|06183|56414-89-2 https://www.jk-sci.com/products/j5306161 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/75ba60d88b46cc7bd0a85542da71bbc0.jpg?v=1791416770 4-Amino-DL-phenylalanine, Assay ≥ 97% | 2922-41-0 4-Amino-DL-phenylalanine|06161|2922-41-0 https://www.jk-sci.com/products/s57c4x-113249 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/15d82fba5ba979fdf1ab6744ca4009da.jpg?v=1791383335 Atorvastatin EP Impurity E(Calcium salt), 93.90% | 1105067-88-6 Atorvastatin EP Impurity E(Calcium salt)|C4X-113249|1105067-88-6 https://www.jk-sci.com/products/j5306211 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ea3c8327add29d417f3c425f2e637582.jpg?v=1791416716 3-(2'-Pyridyl)-L-alanine, Chiral HPLC ≥ 99% (ee) || Purity by HPLC ≥ 99% | 37535-51-6 3-(2'-Pyridyl)-L-alanine|06211|37535-51-6 https://www.jk-sci.com/products/j5306227 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/62f4c9511a0afadd8d555981204ad44b.jpg?v=1791416703 b-Chloro-L-alanine hydrochloride, Purity by HPLC ≥ 95% | 51887-89-9 b-Chloro-L-alanine hydrochloride|06227|51887-89-9 https://www.jk-sci.com/products/j5306279 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5238fedf5bc608b448bbcc2658ef30ce.jpg?v=1791416651 L-1,2,3,4-Tetrahydronorharman-3-carboxylic acid, Purity by HPLC ≥ 98% | 42438-90-4 L-1,2,3,4-Tetrahydronorharman-3-carboxylic acid|06279|42438-90-4 https://www.jk-sci.com/products/j5306248 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5048693525ca6d4740691518beb7c129.jpg?v=1791416679 Nin-Boc-L-tryptophan tert-butyl ester hydrochloride, Assay ≥ 99% (Elemental analysis, Cth : 60.52%) || Titration Chloride Content : ≥ | 218938-67-1 Nin-Boc-L-tryptophan tert-butyl ester hydrochloride|06248|218938-67-1 https://www.jk-sci.com/products/s57c4x-113251 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5aec2cdb427af990d3fe98e7302343fe.jpg?v=1791383329 (3R,5S)-Atorvastatin EP Impurity B (single configuration) Calcium salt, 98.10% | 651770-09-1 (3R,5S)-Atorvastatin EP Impurity B (single configuration) Calcium salt|C4X-113251|651770-09-1 https://www.jk-sci.com/products/j5306291 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c0d4869ab6054ea8d06bac9f700a92ba.jpg?v=1791416638 Na-Ac-Ng-Boc-L-2,4-diaminobutyric acid, Assay by titration ≥ 99% || Purity by HPLC ≥ 99% | 201351-32-8 Na-Ac-Ng-Boc-L-2,4-diaminobutyric acid|06291|201351-32-8 https://www.jk-sci.com/products/s57c4x-11326 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/39896b5b38e3dab7671f7d8ac1f4affd.jpg?v=1791383328 Atorvastatin EP Impurity F(Calcium Salt), 98.20% | 1105067-87-5 Atorvastatin EP Impurity F(Calcium Salt)|C4X-11326|1105067-87-5 https://www.jk-sci.com/products/j5306303 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/34e0433f451674861d5f3d6262416375.jpg?v=1791416614 Na-Boc-Nb-2,4-dinitrophenyl-L-2,3-diaminopropionic acid, Purity by HPLC ≥ 99% | 214750-67-1 Na-Boc-Nb-2,4-dinitrophenyl-L-2,3-diaminopropionic acid|06303|214750-67-1 https://www.jk-sci.com/products/j5306337 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9e578138384fecc62893ac93b87614ec.jpg?v=1791416559 N-Methyl-L-aspartic acid hydrochloride, Purity ≥ 98% | 4226-18-0 N-Methyl-L-aspartic acid hydrochloride|06337|4226-18-0 https://www.jk-sci.com/products/j5306348 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f12f920133e665ba1b374b1935ed2916.jpg?v=1791416542 N-Methyl-L-Leucine benzyl ester 4-toluenesulfonate salt, Purity by HPLC ≥ 99% | 42807-66-9 N-Methyl-L-Leucine benzyl ester 4-toluenesulfonate salt|06348|42807-66-9 https://www.jk-sci.com/products/j5306357 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/58e47446681b047aacb12abcccd8f385.jpg?v=1791416526 N-Methyl-L-serine hydrochloride, Assay by titration 98 - 102% | 2480-26-4 N-Methyl-L-serine hydrochloride|06357|2480-26-4 https://www.jk-sci.com/products/j5306367 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/917d404038abd00c26f21ed58baec486.jpg?v=1791416520 Sarcosine dimethylamide hydrochloride, Purity ≥ 98% (NMR) | 1857-20-1 Sarcosine dimethylamide hydrochloride|06367|1857-20-1 https://www.jk-sci.com/products/j5306374 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/83cef1189ac53f261a48349da4ac28f8.jpg?v=1791416512 Z-g-carboxy-g-(di-tert-butyl ester)-L-glutamic acid | 60686-50-2 Z-g-carboxy-g-(di-tert-butyl ester)-L-glutamic acid|06374|60686-50-2 https://www.jk-sci.com/products/j5306406 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/252861e8ade2014b64b9a1917b09c75d.jpg?v=1791416494 Z-L-aspartic acid b-methyl ester, Assay ≥ 98% | 3160-47-2 Z-L-aspartic acid b-methyl ester|06406|3160-47-2 https://www.jk-sci.com/products/j5306392 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fed7bc5bd94cb1e1f6b44215e5dc6534.jpg?v=1791416502 Z-Ala-Phe-OH, Purity by HPLC ≥ 98% | 2768-53-8 Z-Ala-Phe-OH|06392|2768-53-8 https://www.jk-sci.com/products/s57c4x-113262 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/70b38aa32abff0606fb55781b2f9794f.jpg?v=1791383323 Atorvastatin Impurity 62, 93.90% | 125971-93-9 Atorvastatin Impurity 62|C4X-113262|125971-93-9 https://www.jk-sci.com/products/s57c4x-113265 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8f34fcc80c65abb840ab3b82904806c4.jpg?v=1791383318 Atorvastatin Impurity 65, 99.40% | 1105067-91-1 Atorvastatin Impurity 65|C4X-113265|1105067-91-1 https://www.jk-sci.com/products/s57c4x-113277 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/75465908614a6c2ad07230d8263e03e1.jpg?v=1791383316 Atorvastatin Impurity 77, 94.20% | 2299304-89-3 Atorvastatin Impurity 77|C4X-113277|2299304-89-3 https://www.jk-sci.com/products/s57c4x-11328 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/377483.png?v=1791383310 Atorvastatin EP Impurity H, 92.30% | 125995-03-1 Atorvastatin EP Impurity H|C4X-11328|125995-03-1 https://www.jk-sci.com/products/s57c4x-113283 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/252048.png?v=1791383309 Atorvastatin Impurity 83, 93.60% | 125995-13-3 Atorvastatin Impurity 83|C4X-113283|125995-13-3 https://www.jk-sci.com/products/s57c4x-113289 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/13d03e0405a14add88f97f9256b9be7e.jpg?v=1791383303 ortho-Hydroxy Atorvastatin-d5 Calcium Salt, Purity: 100.0% | 265989-47-7 ortho-Hydroxy Atorvastatin-d5 Calcium Salt|C4X-113289|265989-47-7 https://www.jk-sci.com/products/s57c4x-113291 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/307440.png?v=1791383296 Atorvastatin Calcium, 95.10% | 134523-03-8 Atorvastatin Calcium|C4X-113291|134523-03-8 https://www.jk-sci.com/products/a019455871 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/71958074ab7e20d30f6c07351d97830a.jpg?v=1787976654 1-Chlorotriphenylene, 99% | 22536-40-9 1-Chlorotriphenylene, 99%|9455871|22536-40-9 https://www.jk-sci.com/products/j5306419 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7b640232be17911f7eddc689fc20c553.jpg?v=1791416484 Z-3-(2-naphthyl)-D-alanine, Purity by HPLC ≥ 98% | 143218-10-4 Z-3-(2-naphthyl)-D-alanine|06419|143218-10-4 https://www.jk-sci.com/products/j5306421 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/88f425e50593eee517fb11fc8b7d2fba.jpg?v=1791416479 Z-D-alanine amide, Purity by HPLC ≥ 98% | 151378-81-3 Z-D-alanine amide|06421|151378-81-3 https://www.jk-sci.com/products/j5306435 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/93c494af1a62fa619af4349b9cb3426f.jpg?v=1791416461 Na-Z-Ne-Boc-D-lysine N-hydroxysuccinimide ester, Purity by HPLC ≥ 98% | 78603-23-3 Na-Z-Ne-Boc-D-lysine N-hydroxysuccinimide ester|06435|78603-23-3 https://www.jk-sci.com/products/a01100208 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/364398.png?v=1790087190 Ethyl 2-aminothiazole-5-carboxylate, 97% | 32955-21-8 Ethyl 2-aminothiazole-5-carboxylate, 97%|100208|32955-21-8 https://www.jk-sci.com/products/a01100275 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/100275.png?v=1788004059 N-Boc-4-piperidinemethanol, 97% | 123855-51-6 N-Boc-4-piperidinemethanol, 97%|100275|123855-51-6 https://www.jk-sci.com/products/j5306438 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dc5bf6bbbbb5b037066575e72505767d.jpg?v=1791416456 Z-b-tert-butyl-D-alanine·DCHA, Purity by HPLC ≥ 98% | 201677-20-5 Z-b-tert-butyl-D-alanine·DCHA|06438|201677-20-5 https://www.jk-sci.com/products/s57c4x-113412 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4d73ffd6d962cc4438195944c833707b.jpg?v=1791383287 Neratinib Impurity 12, 90.70% | 1144516-18-6 Neratinib Impurity 12|C4X-113412|1144516-18-6 https://www.jk-sci.com/products/j5306456 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/45a97dbad4581655cd53655d5e603a66.jpg?v=1791416439 Z-DL-alanine-N-hydroxysuccinimide ester, Purity by HPLC ≥ 98% | 73488-77-4 Z-DL-alanine-N-hydroxysuccinimide ester|06456|73488-77-4 https://www.jk-sci.com/products/j5306509 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1186a94db8bc6f9725f2e968a0527c61.jpg?v=1791416417 Z-L-isoleucine dicyclohexylammonium salt, Purity by HPLC ≥ 98% | 26699-00-3 Z-L-isoleucine dicyclohexylammonium salt|06509|26699-00-3 https://www.jk-sci.com/products/s57c4x-113419 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/69cec17632e7f3849b3166c8b2cc273a.jpg?v=1791383287 Neratinib Impurity 19, Purity: 97.8% | 1376619-98-5 Neratinib Impurity 19|C4X-113419|1376619-98-5 https://www.jk-sci.com/products/s57c4x-113421 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2f78cfc5033ae0839c359e4f3b52a712.jpg?v=1791383276 Neratinib Impurity 21, Purity: 99.9% | 1144516-15-3 Neratinib Impurity 21|C4X-113421|1144516-15-3 https://www.jk-sci.com/products/j5306525 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/32e87a58d6b516b9e5e73eba5425031e.jpg?v=1791416403 Na-Z-Ne-Boc-L-lysine methyl ester, Chiral HPLC ≥ 99.5% (ee) || Purity by HPLC ≥ 99% | 2389-49-3 Na-Z-Ne-Boc-L-lysine methyl ester|06525|2389-49-3 https://www.jk-sci.com/products/j5306539 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/004c2e536c087090e5b13049d255e499.jpg?v=1791416394 Z-N-methyl-L-aspartic acid b-tert-butyl ester dicyclohexylammonium salt, Purity by HPLC || Purity ≥ 98% (NMR) | 42417-70-9 Z-N-methyl-L-aspartic acid b-tert-butyl ester dicyclohexylammonium salt|06539|42417-70-9 https://www.jk-sci.com/products/j5306470 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/38dc060ddbc105bd64b6649a459ae377.jpg?v=1791416422 Z-L-glutamic acid g-methyl ester a-N-hydroxysuccinimide ester, Purity by HPLC ≥ 97% | 39538-31-3 Z-L-glutamic acid g-methyl ester a-N-hydroxysuccinimide ester|06470|39538-31-3 https://www.jk-sci.com/products/j5306552 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fdb9d62b2085f9809e4cab68eae23afe.jpg?v=1791416380 Z-L-phenylalanine methyl ester, Purity by HPLC ≥ 97% | 35909-92-3 Z-L-phenylalanine methyl ester|06552|35909-92-3 https://www.jk-sci.com/products/j5306561 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c70b543753af7e5113c91108353255c4.jpg?v=1791416376 Z-Pro-Phe-OH TFA salt, Purity by HPLC ≥ 95% | 17350-17-3 Z-Pro-Phe-OH TFA salt|06561|17350-17-3 https://www.jk-sci.com/products/j5306607 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5b86eeb5cc6a580e57f6ee0b0bd2f2d6.jpg?v=1791416353 Na-Z-Ne-Boc-D-lysine methyl ester, Purity by HPLC ≥ 98% | 84559-78-4 Na-Z-Ne-Boc-D-lysine methyl ester|06607|84559-78-4 https://www.jk-sci.com/products/j5306582 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ffccbd38e75a6e1fd059878c82a1177e.jpg?v=1791416368 Z-Trp-Trp-OH, Purity by HPLC ≥ 98% | 57850-17-6 Z-Trp-Trp-OH|06582|57850-17-6 https://www.jk-sci.com/products/j5306596 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c2630f51a91abcd2e5dea26343ec4b81.jpg?v=1791416363 Z-Val-Ile-OH, Assay ≥ 98% (N=7.69% by Elemental analysis) | 41486-97-9 Z-Val-Ile-OH|06596|41486-97-9 https://www.jk-sci.com/products/j5306600 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bc3b0f4083ae87f7028f45dbefbe9bb1.jpg?v=1791416358 Z-Val-Pro-OH, Purity by HPLC ≥ 98% | 53331-43-4 Z-Val-Pro-OH|06600|53331-43-4 https://www.jk-sci.com/products/j5306614 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0d9d154f311db5ace4fde1dc1e1f5c68.jpg?v=1791416347 DL-Tyrosine ethyl ester hydrochloride, Purity by HPLC ≥ 98% | 5619-08-9 DL-Tyrosine ethyl ester hydrochloride|06614|5619-08-9 https://www.jk-sci.com/products/j5306620 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/021417a5b2fbc53f449e533e9e0376ad.jpg?v=1791416337 O-Methyl-L-prolinol, Purity ≥ 99% | 63126-47-6 O-Methyl-L-prolinol|06620|63126-47-6 https://www.jk-sci.com/products/s57c4x-113443 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b38e52607c42a7f6919d40f9d9f19fcf.jpg?v=1791383269 Neratinib Impurity 43, Purity: 99.7% | 1222172-49-7 Neratinib Impurity 43|C4X-113443|1222172-49-7 https://www.jk-sci.com/products/j5306668 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8f514d8940b7b352cbd5a3d08f952c2d.jpg?v=1791416316 Phthaloyl-L-isoleucine, Purity by HPLC ≥ 97% | 29588-88-3 Phthaloyl-L-isoleucine|06668|29588-88-3 https://www.jk-sci.com/products/s57c4x-113423 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/77f09827731aae653cc1fa20c8f4438d.jpg?v=1791383271 Neratinib Impurity 23, 96.60% | 524955-09-7 Neratinib Impurity 23|C4X-113423|524955-09-7 https://www.jk-sci.com/products/j5306677 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fda2211ff8eb81e9788862e17fc17472.jpg?v=1791416309 Z-L-alaninol, Purity by HPLC ≥ 99% | 66674-16-6 Z-L-alaninol|06677|66674-16-6 https://www.jk-sci.com/products/j5306696 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d81b8b7946f3692a28373fe7bb9fa4bf.jpg?v=1791416294 Acetyl-D-tyrosine methyl ester, Purity by HPLC ≥ 98% | 65160-71-6 Acetyl-D-tyrosine methyl ester|06696|65160-71-6 https://www.jk-sci.com/products/s57c4x-1135 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/adf06e45980aa4055c4a9a6bb21f530f.jpg?v=1791383266 Olaparib, 99.90% | 763113-22-0 Olaparib|C4X-1135|763113-22-0 https://www.jk-sci.com/products/j5306720 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9d34950c6796d5cc1deee101fecc6203.jpg?v=1791416280 Nd-Phthaloyl-L-ornithine hydrochloride, Assay by titration ≥ 11% Chloride (AgNO3 titration) | 10009-97-9 Nd-Phthaloyl-L-ornithine hydrochloride|06720|10009-97-9 https://www.jk-sci.com/products/j5306729 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2346a9a5e5e3f41a4c38548f71eede4c.jpg?v=1791416274 Benzyl-N-methyl-L-alanine, Purity by HPLC ≥ 98% | 63238-82-4 Benzyl-N-methyl-L-alanine|06729|63238-82-4 https://www.jk-sci.com/products/j5306768 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fcfeb2d68bd9a6b0a6189903e0c97b08.jpg?v=1791416246 Fmoc-L-alanine-2-chlorotrityl resin (0.3 - 0.8 mmol/g, 200 - 400 mesh), Bead Size 200 - 400 mesh || Substitution (meq/g) 0.3 - 0.8 mmol/g Fmoc-L-alanine-2-chlorotrityl resin (0.3 - 0.8 mmol/g, 200 - 400 mesh)|06768 https://www.jk-sci.com/products/j5306793 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f02b4a67eeb3c7cf369468017912050c.jpg?v=1791416237 Fmoc-L-glutamic acid g-tert-butyl ester-2-chlorotrityl resin (0.3 - 0.8 meq/g, 200 - 400 mesh), Mesh Size 200-400 mesh || Substitution (meq/g) 0.3-0.8 meq/g Fmoc-L-glutamic acid g-tert-butyl ester-2-chlorotrityl resin (0.3 - 0.8 meq/g, 200 - 400 mesh)|06793 https://www.jk-sci.com/products/s57c4x-113511 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/67a4ecca28b8183178db721522a22f41.jpg?v=1791383260 Olaparib Impurity 11, 96.90% | 2250242-62-5 Olaparib Impurity 11|C4X-113511|2250242-62-5 https://www.jk-sci.com/products/j5306800 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/412be6f12d708e45208c4d115040d95e.jpg?v=1791416229 Fmoc-Orn(Boc)-2-chlorotrityl resin (0.3 - 0.8 mmol/g, 100 - 200 mesh), Mesh Size 100 - 200 mesh || Substitution (meq/g) 0.3 - 0.8 mmol/g Fmoc-Orn(Boc)-2-chlorotrityl resin (0.3 - 0.8 mmol/g, 100 - 200 mesh)|06800 https://www.jk-sci.com/products/j5305048 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bc051ae1cf7f9f6bc11678f6bda8c935.jpg?v=1791417868 Fmoc-4-(3-carboxymethyl-2-keto-one-benzimidazolyl)piperidine, Purity by HPLC ≥ 97% | 215190-29-7 Fmoc-4-(3-carboxymethyl-2-keto-one-benzimidazolyl)piperidine|05048|215190-29-7 https://www.jk-sci.com/products/j5305469 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/39680dc8c2a59f5a9c49f4dd7c5503ff.jpg?v=1791417499 Boc-S-Z-aminoethyl-L-cysteine, Assay ≥ 85% | 85003-76-5 Boc-S-Z-aminoethyl-L-cysteine|05469|85003-76-5 https://www.jk-sci.com/products/s57c4x-1135119 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_af549a84-e9cd-4aca-b92c-da7e035bd0f5.png?v=1791383254 Olaparib Impurity 119, 99.80% Olaparib Impurity 119|C4X-1135119 https://www.jk-sci.com/products/j5305600 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9db926e43b5a1826d6aea254ea4358c3.jpg?v=1791417331 Boc-L-serine benzyl ester, Purity by HPLC ≥ 99% | 59524-02-6 Boc-L-serine benzyl ester|05600|59524-02-6 https://www.jk-sci.com/products/j5305761 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/923d681269ad628bc450d0f017a8167d.jpg?v=1791417150 Fmoc-L-proline 4-nitrophenyl ester | 71989-32-7 Fmoc-L-proline 4-nitrophenyl ester|05761|71989-32-7 https://www.jk-sci.com/products/s57c4x-1135121 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_68523146-a499-4638-971b-d0d9a9e71a59.png?v=1791383251 Olaparib Impurity 21, Purity: 99.9% Olaparib Impurity 21|C4X-1135121 https://www.jk-sci.com/products/j5305880 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d9b43499191f192d32403ce9bfe538c9.jpg?v=1791417041 L-Asparagine amide hydrochloride, Purity ≥ 98% (NMR) | 57471-69-9 L-Asparagine amide hydrochloride|05880|57471-69-9 https://www.jk-sci.com/products/j5306028 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bb4fc54a0a2fe365e2940c243a0941f8.jpg?v=1791416900 DL-Alanine ethyl ester hydrochloride, Assay ≥ 99% | 617-27-6 DL-Alanine ethyl ester hydrochloride|06028|617-27-6 https://www.jk-sci.com/products/j5305949 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9ded464288673fd8af167d02555380d4.jpg?v=1791416971 S-4-Methylbenzyl-D-cysteine, Purity by HPLC ≥ 99% | 127348-02-1 S-4-Methylbenzyl-D-cysteine|05949|127348-02-1 https://www.jk-sci.com/products/j5306146 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/238ec0150fb21c8b3606fe29783bf73c.jpg?v=1791416786 Nd-Fmoc-L-ornithine, Purity by HPLC ≥ 99% | 147071-84-9 Nd-Fmoc-L-ornithine|06146|147071-84-9 https://www.jk-sci.com/products/j5306092 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6233be8632149e237416ddd050f8f528.jpg?v=1791416825 L-Homoproline methyl ester hydrochloride, Purity by HPLC ≥ 99% | 18650-39-0 L-Homoproline methyl ester hydrochloride|06092|18650-39-0 https://www.jk-sci.com/products/s57c4x-1135149 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_1d02b518-a703-47f6-b314-c0021bb2df59.png?v=1791383249 Olaparib Impurity 149, 97.60% Olaparib Impurity 149|C4X-1135149 https://www.jk-sci.com/products/s57c4x-113516 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/67998fefaf70a7ceaf467b3830bed11d.jpg?v=1791383243 Olaparib Impurity 16, Purity: 99.4% | 848136-41-4 Olaparib Impurity 16|C4X-113516|848136-41-4 https://www.jk-sci.com/products/j5306199 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/df35355eed58ce40794fa990d32395de.jpg?v=1791416730 L-Proline ethylamide hydrochloride, Assay Elemental analysis: ≥ 99% | 58107-62-3 L-Proline ethylamide hydrochloride|06199|58107-62-3 https://www.jk-sci.com/products/j5306229 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3066021409f0c7885e3bbebc083e4d79.jpg?v=1791416697 b-Chloro-D-alanine | 51887-88-8 b-Chloro-D-alanine|06229|51887-88-8 https://www.jk-sci.com/products/s57c4x-113518 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2fb8434c0d576c2d6329599a25aeede1.jpg?v=1791383242 Olaparib Impurity 18, 97.30% | 2250243-17-3 Olaparib Impurity 18|C4X-113518|2250243-17-3 https://www.jk-sci.com/products/s57c4x-113521 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/351777_a89de07a-c8da-4719-bfbd-f52428956dda.png?v=1791383238 Olaparib Impurity 21, 98.80% | 218301-22-5 Olaparib Impurity 21|C4X-113521|218301-22-5 https://www.jk-sci.com/products/s57c4x-113526 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c8157fcb4e99c39ed984a4d31f658111.jpg?v=1791383232 Olaparib Impurity 26, 100.00% | 414910-15-9 Olaparib Impurity 26|C4X-113526|414910-15-9 https://www.jk-sci.com/products/s57c4x-113537 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b9147ea86ff0279b14231c31b72758a0.jpg?v=1791383225 Olaparib Impurity 37, 98.30% | 1423030-11-8 Olaparib Impurity 37|C4X-113537|1423030-11-8 https://www.jk-sci.com/products/s57c4x-113544 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_327aa469-35ea-4235-9676-d4b286e888a7.png?v=1791383220 Olaparib Impurity 44, 76.10% Olaparib Impurity 44|C4X-113544 https://www.jk-sci.com/products/j5306284 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/549e123cf3e9ddffa15c973c50421e5f.jpg?v=1791416643 L-Cycloserine, Assay ≥ 97% (Elemental analysis based on Nitrogen content) || Purity by HPLC ≥ 9 | 339-72-0 L-Cycloserine|06284|339-72-0 https://www.jk-sci.com/products/s57c4x-113574 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/303005.png?v=1791383209 Olaparib Impurity 74, 99.90% | 39968-33-7 Olaparib Impurity 74|C4X-113574|39968-33-7 https://www.jk-sci.com/products/s57c4x-113561 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/257510.png?v=1791383212 Olaparib Impurity 61, 95.50% | 2558-18-1 Olaparib Impurity 61|C4X-113561|2558-18-1 https://www.jk-sci.com/products/s57c4x-113548 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/426188.png?v=1791383220 Olaparib Impurity 48, 95.60% | 59878-57-8 Olaparib Impurity 48|C4X-113548|59878-57-8 https://www.jk-sci.com/products/s57c4x-113554 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bab4c89b42c580ae271fffb5dd3def87.jpg?v=1791383216 Olaparib Impurity 54, 99.60% | 63964-50-1 Olaparib Impurity 54|C4X-113554|63964-50-1 https://www.jk-sci.com/products/j5306325 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/63544f53fca17cc37ec2a97bfe12c091.jpg?v=1791416589 Na-Z-D-2,4-diaminobutyric acid, Assay by titration ≥ 97% || Purity by HPLC ≥ 99% | 70882-66-5 Na-Z-D-2,4-diaminobutyric acid|06325|70882-66-5 https://www.jk-sci.com/products/j5306345 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7b9b859abc206cf4f17f1140130117d0.jpg?v=1791416548 N-Methyl-L-glutamic acid, Assay ≥ 98% | 6753-62-4 N-Methyl-L-glutamic acid|06345|6753-62-4 https://www.jk-sci.com/products/j5306359 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/91c007b2cdc9b829d31ad7d3d90e7b6c.jpg?v=1791416521 N-Methyl-L-tyrosine, Purity by HPLC ≥ 95% | 537-49-5 N-Methyl-L-tyrosine|06359|537-49-5 https://www.jk-sci.com/products/j5329465 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b795d594a09e4961f5d7e80d4e8625ec.jpg?v=1791399378 (S)-Fmoc-2-amino-5-(N'-Pbf-N''-trifluoroethyl-guanidino)-pentanoic acid, Purity by HPLC ≥ 95% | 1060769-47-2 (S)-Fmoc-2-amino-5-(N'-Pbf-N''-trifluoroethyl-guanidino)-pentanoic acid|29465|1060769-47-2 https://www.jk-sci.com/products/j5306378 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a34c077d7b81915b7c7ca9a67d7d1759.jpg?v=1791416512 Z-3-aminobenzoic acid N-hydroxysuccinimide ester, Assay ≥ 99% (Elemental analysis) | 129666-48-4 Z-3-aminobenzoic acid N-hydroxysuccinimide ester|06378|129666-48-4 https://www.jk-sci.com/products/a01100517 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/100517.png?v=1790217484 8-Aminoquinoline, 98% | 578-66-5 8-Aminoquinoline, 98%|100517|578-66-5 https://www.jk-sci.com/products/j5306417 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0c85ed96ccc1f6598e8f1f5fc9b2cdf5.jpg?v=1791416488 Z-(3R)-1,2,3,4-Tetrahydroisoquinolene-3-carboxylic acid, Purity by HPLC ≥ 98% | 146684-74-4 Z-(3R)-1,2,3,4-Tetrahydroisoquinolene-3-carboxylic acid|06417|146684-74-4 https://www.jk-sci.com/products/a011004745 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4629e27d52722bd479416bfca09bd01d.jpg?v=1790217485 2-(3,5-Bis(trifluoromethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 98% | 69807-91-6 2-(3,5-Bis(trifluoromethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 98%|1004745|69807-91-6 https://www.jk-sci.com/products/j5306431 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/eba80ff417cf11fccd22790ecbf46554.jpg?v=1791416466 Z-D-glutamic acid a-methyl ester | 26566-11-0 Z-D-glutamic acid a-methyl ester|06431|26566-11-0 https://www.jk-sci.com/products/s57c4x-11359 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_dd2247bf-1ca4-4deb-9878-af89010af3d1.png?v=1791383204 Olaparib Impurity 9, 96.90% Olaparib Impurity 9|C4X-11359 https://www.jk-sci.com/products/s57c4x-1136 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/813754.png?v=1791383202 Lubiprostone, 98.80% Lubiprostone|C4X-1136 https://www.jk-sci.com/products/j5306442 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e4532c8659023ed74696e47b168f4916.jpg?v=1791416450 Na-Z-D-ornithine, Purity by HPLC ≥ 98% | 112229-51-3 Na-Z-D-ornithine|06442|112229-51-3 https://www.jk-sci.com/products/j5306503 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2959cee659b2d4dab8539b35a14af96c.jpg?v=1791416417 Z-L-trans-4-hydroxyproline methyl ester, Purity by HPLC ≥ 98% | 64187-48-0 Z-L-trans-4-hydroxyproline methyl ester|06503|64187-48-0 https://www.jk-sci.com/products/a01101714 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/101714.png?v=1790217443 Piperazine-2-carboxylic acid dihydrochloride, 98% | 3022-15-9 Piperazine-2-carboxylic acid dihydrochloride, 98%|101714|3022-15-9 https://www.jk-sci.com/products/s57c4x-113715 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8e6a2499ebe61ea726150913deaf5c41.jpg?v=1791383197 D-2’-Deoxyribofuranosyl-3-Guanylurea(α/β-Mixture), Purity: 97.6% | 570410-72-9 D-2’-Deoxyribofuranosyl-3-Guanylurea(α/β-Mixture)|C4X-113715|570410-72-9 https://www.jk-sci.com/products/s57c4x-113728 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/208201_4884a70b-ebc4-467d-8b2f-82246106634a.png?v=1791383195 Decitabine Impurity 28, 96.80% | 1126-46-1 Decitabine Impurity 28|C4X-113728|1126-46-1 https://www.jk-sci.com/products/s57c4x-1138145 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ec4874b407bcca414ef55c2addf685c4.jpg?v=1791383174 Dapagliflozin Impurity 145, 97.30% | 1971128-00-3 Dapagliflozin Impurity 145|C4X-1138145|1971128-00-3 https://www.jk-sci.com/products/s57c4x-1138 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/90787734969caf9ac9453d0c52b01c90.jpg?v=1791383191 Dapagliflozin, 98.80% | 461432-26-8 Dapagliflozin|C4X-1138|461432-26-8 https://www.jk-sci.com/products/j5306553 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/939dc16eab1c8068167250e872249264.jpg?v=1791416377 Z-Phe-Phe-OH, Assay ≥ 98% | 13122-91-3 Z-Phe-Phe-OH|06553|13122-91-3 https://www.jk-sci.com/products/s57c4x-113810 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/02625c2552abbd43a5e1b0361fe4d5d2_117c543f-8943-4486-9f14-467968b3ee96.jpg?v=1791383185 Dapagliflozin Impurity 10, 99.70% | 461432-23-5 Dapagliflozin Impurity 10|C4X-113810|461432-23-5 https://www.jk-sci.com/products/s57c4x-1138183 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_bce278c3-0714-4651-8c20-9dd40ff5bda6.png?v=1791383157 Dapagliflozin Impurity 183, Purity: 99.1% Dapagliflozin Impurity 183|C4X-1138183 https://www.jk-sci.com/products/s57c4x-113813 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b666a6a6a45f67ab5534c6ebe6dffbf7.jpg?v=1791383180 Dapagliflozin Impurity 13, 93.00% | 864070-37-1 Dapagliflozin Impurity 13|C4X-113813|864070-37-1 https://www.jk-sci.com/products/a01101786 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/422486.png?v=1790217437 2,6-Dimethylbenzaldehyde, 98% | 1123-56-4 2,6-Dimethylbenzaldehyde, 98%|101786|1123-56-4 https://www.jk-sci.com/products/j5306584 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3aa12353dda040509c49d82f5cdc5dd0.jpg?v=1791416363 Z-O-tert-butyl-L-tyrosine methyl ester | 5068-29-1 Z-O-tert-butyl-L-tyrosine methyl ester|06584|5068-29-1 https://www.jk-sci.com/products/s57c4x-113817 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/126198.png?v=1791383167 Dapagliflozin Impurity 17, 97.20% | 103-73-1 Dapagliflozin Impurity 17|C4X-113817|103-73-1 https://www.jk-sci.com/products/s57c4x-1138185 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_c104cbcf-45ce-48eb-976e-622d223bdf79.png?v=1791383152 Dapagliflozin Impurity 185, Purity: 99.3% Dapagliflozin Impurity 185|C4X-1138185 https://www.jk-sci.com/products/j5306533 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6ab9b5aeced69a68bc52becf25fec7dc.jpg?v=1791416394 Na-Z-L-lysine amide hydrochloride, Purity by HPLC ≥ 98% | 112785-42-9 Na-Z-L-lysine amide hydrochloride|06533|112785-42-9 https://www.jk-sci.com/products/s57c4x-113828 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e352785b91f1618e4a658a950e6b3c51.jpg?v=1791383133 Dapagliflozin Impurity 28, 95.00% | 461432-28-0 Dapagliflozin Impurity 28|C4X-113828|461432-28-0 https://www.jk-sci.com/products/s57c4x-1138191 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6c0178795ab91c4595660c28e72771ee.jpg?v=1791383155 Dapagliflozin Impurity 191, Purity: 97.8% | 1616259-44-9 Dapagliflozin Impurity 191|C4X-1138191|1616259-44-9 https://www.jk-sci.com/products/s57c4x-113822 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d211a7a4ebc730da0a6c236eb1885726.jpg?v=1791383137 Dapagliflozin 4-Bromo Analog, 96.60% | 1807632-95-6 Dapagliflozin 4-Bromo Analog|C4X-113822|1807632-95-6 https://www.jk-sci.com/products/s57c4x-1138153 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8a7bb85a79f0d12cd67863b801df3541.jpg?v=1791383169 Dapagliflozin Impurity 153, 99.60% | 35672-52-7 Dapagliflozin Impurity 153|C4X-1138153|35672-52-7 https://www.jk-sci.com/products/j5306619 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e1fbe25c10dd36f1ea61bccd20e39911.jpg?v=1791416337 L-Serine tert-butyl ester hydrochloride | 106402-41-9 L-Serine tert-butyl ester hydrochloride|06619|106402-41-9 https://www.jk-sci.com/products/s57c4x-113825 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ef6af8088080da2e3cedf1b1a32b5006.jpg?v=1791383136 Dapagliflozin Impurity 25, 98.40% | 2452300-94-4 Dapagliflozin Impurity 25|C4X-113825|2452300-94-4 https://www.jk-sci.com/products/j5306605 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d444559d332e5f8f4f09529ed73d1d73.jpg?v=1791416355 Z-O-acetyl-L-serine | 19645-29-5 Z-O-acetyl-L-serine|06605|19645-29-5 https://www.jk-sci.com/products/s57c4x-1138119 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_13dcc2ab-fea2-4d62-80bd-005fa8aa5bc2.png?v=1791383180 Dapagliflozin Impurity 119, 98.70% Dapagliflozin Impurity 119|C4X-1138119 https://www.jk-sci.com/products/j5306669 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/019b1a0df40d320b2e006369ffb29e85.jpg?v=1791416316 Phe-Leu-OBzl, Purity by HPLC ≥ 98% | 63649-15-0 Phe-Leu-OBzl|06669|63649-15-0 https://www.jk-sci.com/products/j5306798 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0f9e88f037948c8156a7050955707b65.jpg?v=1791416229 Fmoc-L-methionine-2-chlorotrityl resin (0.3 - 0.9 meq/g, 200 - 400 mesh), Mesh Size 200-400 || Substitution (meq/g) 0.3-0.9 Fmoc-L-methionine-2-chlorotrityl resin (0.3 - 0.9 meq/g, 200 - 400 mesh)|06798 https://www.jk-sci.com/products/j5306730 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/24706bfe183048ae7a77699f4aba5651.jpg?v=1791416270 N-Benzyl-N-methyl-L-isoleucine, Assay ≥ 98% | 4125-97-7 N-Benzyl-N-methyl-L-isoleucine|06730|4125-97-7 https://www.jk-sci.com/products/j5306853 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/598ed00e1f1cf119208307d4949f44c3.jpg?v=1791416190 S-4-Methylbenzyl-D-penicillamine, Purity by HPLC ≥ 98% | 1330286-51-5 S-4-Methylbenzyl-D-penicillamine|06853|1330286-51-5 https://www.jk-sci.com/products/j5306705 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/50ba1e986b5c72ee98a65a2d6151a7d1.jpg?v=1791416284 Boc-L-threonine hydrazide, Purity by HPLC ≥ 97% | 69568-63-4 Boc-L-threonine hydrazide|06705|69568-63-4 https://www.jk-sci.com/products/j5306902 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ce72e4df1aeb3209a76725188b88eab1.jpg?v=1791416170 DL-Nipecotic acid, Assay by titration ≥ 98.5% (by perchloric acid ) ≥ 98.5% (by NaOH) | 498-95-3 DL-Nipecotic acid|06902|498-95-3 https://www.jk-sci.com/products/j5307008 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b36970911faa6bd071bbf01521da1040.jpg?v=1791416135 5-Aminovaleric acid benzyl ester p-toluenesulfonate salt, Purity by HPLC ≥ 98% | 63649-14-9 5-Aminovaleric acid benzyl ester p-toluenesulfonate salt|07008|63649-14-9 https://www.jk-sci.com/products/j5306925 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ac33f35d59fe903f29057b44c141d087.jpg?v=1791416154 3-(4'-Pyridyl)-D-alanine, Purity ≥ 98% | 37535-50-5 3-(4'-Pyridyl)-D-alanine|06925|37535-50-5 https://www.jk-sci.com/products/s57c4x-113831 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9e0355a0450f05e0b7fe6a566bc712b4.jpg?v=1791383125 Dapagliflozin Impurity 31, 95.40% | 2100872-88-4 Dapagliflozin Impurity 31|C4X-113831|2100872-88-4 https://www.jk-sci.com/products/s57c4x-113835 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/64aae05112b0bb2d32eb16629591162e.jpg?v=1791383122 Dapagliflozin Impurity 35, 97.90% | 898538-17-5 Dapagliflozin Impurity 35|C4X-113835|898538-17-5 https://www.jk-sci.com/products/s57c4x-113846 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1ba44efdc0ff85664df72a742527b222.jpg?v=1791383116 Dapagliflozin Impurity 46, 97.10% | 461432-24-6 Dapagliflozin Impurity 46|C4X-113846|461432-24-6 https://www.jk-sci.com/products/a01101824 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/101824.png?v=1790217435 4-Fluoro-2-hydroxybenzoic acid, 97% | 345-29-9 4-Fluoro-2-hydroxybenzoic acid, 97%|101824|345-29-9 https://www.jk-sci.com/products/s57c4x-113850 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_70299013-28c7-403f-9cbb-d8fee32694d1.png?v=1791383112 Dapagliflozin Impurity 50, 91.60% Dapagliflozin Impurity 50|C4X-113850 https://www.jk-sci.com/products/s57c4x-113863 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f46831e146ad74c7973925e4bb0ecc03.jpg?v=1791383109 Dapagliflozin Impurity 63, Purity: 99.0% | 2768435-31-8 Dapagliflozin Impurity 63|C4X-113863|2768435-31-8 https://www.jk-sci.com/products/j5307027 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/03b33c26e18b5b599386b713dca13645.jpg?v=1791416107 Carbamoyl-b-alanine, Assay ≥ 99.9% | 462-88-4 Carbamoyl-b-alanine|07027|462-88-4 https://www.jk-sci.com/products/j5307033 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/58a4484cbe876773dede349434f0f802.jpg?v=1791416101 Boc-L-1,2,3,4-tetrahydronorharman-3-carboxylic acid, Chiral HPLC ≥ 98% || Purity by HPLC ≥ 98% | 66863-43-2 Boc-L-1,2,3,4-tetrahydronorharman-3-carboxylic acid|07033|66863-43-2 https://www.jk-sci.com/products/j5307047 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fe0f1caf2ee9acf3c8d31696cb7be019.jpg?v=1791416084 Fmoc-D-allo-threonine, Purity by HPLC ≥ 99% | 130674-54-3 Fmoc-D-allo-threonine|07047|130674-54-3 https://www.jk-sci.com/products/s57c4x-113869 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_65c7f2e0-3a0c-43e1-b2a3-898708d641ef.png?v=1791383104 Dapagliflozin Impurity 69, 98.30% Dapagliflozin Impurity 69|C4X-113869 https://www.jk-sci.com/products/j5307053 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a6f2820fb144a79d1476eea02b9bc9bd.jpg?v=1791416073 Fmoc-S-Boc-3-aminopropyl-L-cysteine, Purity by HPLC ≥ 98% | 173963-91-2 Fmoc-S-Boc-3-aminopropyl-L-cysteine|07053|173963-91-2 https://www.jk-sci.com/products/s57c4x-11388 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/70579a7e323b8f5e0c90e11583eaccbf_d7804a30-92fb-4093-911b-048c37f19443.jpg?v=1791383103 Dapagliflozin Impurity 8, 99.00% | 1662702-90-0 Dapagliflozin Impurity 8|C4X-11388|1662702-90-0 https://www.jk-sci.com/products/s57c4x-113885 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e29e786cf3e04663082967478ed884cb.jpg?v=1791383096 Dapagliflozin Impurity 85, 92.60% | 2452300-79-5 Dapagliflozin Impurity 85|C4X-113885|2452300-79-5 https://www.jk-sci.com/products/j5307082 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6d69727587c1ddba11ea36b393db59b1.jpg?v=1791416035 3-(3'-Pyridyl)-DL-alanine, Purity by HPLC ≥ 99% | 17470-24-5 3-(3'-Pyridyl)-DL-alanine|07082|17470-24-5 https://www.jk-sci.com/products/j5307064 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7b2ddaa247bfb394591a95d028853a07.jpg?v=1791416060 DL-Homoproline, Assay ≥ 98% | 535-75-1 DL-Homoproline|07064|535-75-1 https://www.jk-sci.com/products/s57c4x-113888 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_0ec7407e-f002-4e18-b68c-68efce294596.png?v=1791383090 Dapagliflozin Impurity 88, Purity: 99.2% Dapagliflozin Impurity 88|C4X-113888 https://www.jk-sci.com/products/j5307067 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/30ce7f865a7e7915bc38c057c502fc2a.jpg?v=1791416056 N-w-Hydroxy-L-norarginine diacetate salt | 189302-40-7 N-w-Hydroxy-L-norarginine diacetate salt|07067|189302-40-7 https://www.jk-sci.com/products/j5307084 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/55be8a8a8804f4063b01c8c572af627d.jpg?v=1791416030 3-(2'-Quinolyl)-D-alanine | 170421-67-7 3-(2'-Quinolyl)-D-alanine|07084|170421-67-7 https://www.jk-sci.com/products/j5307093 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4788bc7ef34afaefa19e88e2128be846.jpg?v=1791416025 Z-O-tert-butyl-L-allo-threonine dicyclohexylammonium salt, Purity by HPLC ≥ 98% | 198828-94-3 Z-O-tert-butyl-L-allo-threonine dicyclohexylammonium salt|07093|198828-94-3 https://www.jk-sci.com/products/j5307097 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3da324e15c567f315ffd5af829b5d86b.jpg?v=1791416015 Na-Z-Nb-Boc-D-2,3-diaminopropionic acid, Purity by HPLC ≥ 99% | 62234-36-0 Na-Z-Nb-Boc-D-2,3-diaminopropionic acid|07097|62234-36-0 https://www.jk-sci.com/products/j5307111 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bfdcd3e791be7b13e479d8fdb8cea987.jpg?v=1791416000 Fmoc-O-2-chlorotrityl-D-tyrosine, Purity by HPLC ≥ 99% | 1272755-49-3 Fmoc-O-2-chlorotrityl-D-tyrosine|07111|1272755-49-3 https://www.jk-sci.com/products/s57c4x-11389 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/15cef2c18b932975eee1b3757ece87b9.jpg?v=1791383086 Dapagliflozin Impurity 9, 98.90% | 714269-57-5 Dapagliflozin Impurity 9|C4X-11389|714269-57-5 https://www.jk-sci.com/products/s57c4x-11392 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8eddf74676741a8166137e3487fbc346.jpg?v=1791383086 Cefixime EP Impurity A, 96.30% | 1614255-90-1 Cefixime EP Impurity A|C4X-11392|1614255-90-1 https://www.jk-sci.com/products/s57c4x-113927 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5b9aabe27ecb1beba860f77179a1861e.jpg?v=1791383075 Cefixime Impurity 27, 94.10% | 29126-11-2 Cefixime Impurity 27|C4X-113927|29126-11-2 https://www.jk-sci.com/products/j5307116 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/313fcbca251273091e511e7e445a2b84.jpg?v=1791415991 Palmitoyl-glycine, Purity by HPLC ≥ 98% | 2441-41-0 Palmitoyl-glycine|07116|2441-41-0 https://www.jk-sci.com/products/j5307141 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fb6c6a680a09986ae12261f663f7e941.jpg?v=1791415964 Boc-4-(Z-amino)-D-phenylalanine dicyclohexylammonium salt, Chiral HPLC ≥ 98% (ee) || Purity by HPLC ≥ 98% Boc-4-(Z-amino)-D-phenylalanine dicyclohexylammonium salt|07141 https://www.jk-sci.com/products/s57c4x-113932 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_8b828084-ec93-4410-bb57-c5edb71d2048.png?v=1791383071 Cefixime Impurity 32, 90.40% Cefixime Impurity 32|C4X-113932 https://www.jk-sci.com/products/s57c4x-11394 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0adc56a54734cd2630552e124ca6d627.jpg?v=1791383069 Cefixime EP Impurity B, 95.20% | 1335475-19-8 Cefixime EP Impurity B|C4X-11394|1335475-19-8 https://www.jk-sci.com/products/s57c4x-1140141 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_d0a6b8cf-6d82-4cfc-a3f9-929a9b94dc77.png?v=1791383036 Lenvatinib-d5, Purity>90% Lenvatinib-d5|C4X-1140141 https://www.jk-sci.com/products/s57c4x-11395 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fc824879e5c9d99d3a6bf22abcd55775.jpg?v=1791383065 Cefixime EP Impurity C, 91.80% | 108691-83-4 Cefixime EP Impurity C|C4X-11395|108691-83-4 https://www.jk-sci.com/products/j5307145 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a24472e89f848d359b3a83eb43915555.jpg?v=1791415954 Fmoc-1,5-diaminopentane hydrochloride, Assay by titration 98.0 - 105.5% || Purity by HPLC ≥ 99% | 118119-32-7 Fmoc-1,5-diaminopentane hydrochloride|07145|118119-32-7 https://www.jk-sci.com/products/j5307150 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4de84590afa93a1e833b401e3115bdb2.jpg?v=1791415945 Trityl-1,6-diaminohexane·AcOH, Assay by titration ≥ 99% || Purity by HPLC ≥ 99% | 325708-26-7 Trityl-1,6-diaminohexane·AcOH|07150|325708-26-7 https://www.jk-sci.com/products/s57c4x-11397 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9330a315c287eaa7e2662d45a87dac60.jpg?v=1791383060 Cefixime EP Impurity E, 89.50% | 72701-01-0 Cefixime EP Impurity E|C4X-11397|72701-01-0 https://www.jk-sci.com/products/s57c4x-11399 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/112785.png?v=1791383054 Cefixime Impurity 9, 98.70% | 80544-17-8 Cefixime Impurity 9|C4X-11399|80544-17-8 https://www.jk-sci.com/products/s57c4x-1140103 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9d4db144631a6dc299965d6cf3af3fda_a42939b5-c125-48fd-b3ef-8d02a6d2db2a.jpg?v=1791383049 Lenvatinib Impurity 103, Purity: 99.4% | 2486-80-8 Lenvatinib Impurity 103|C4X-1140103|2486-80-8 https://www.jk-sci.com/products/s57c4x-1140114 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0b6a144c33d549cf241601db98594575.jpg?v=1791383041 Lenvatinib Impurity 114, 99.60% | 42832-22-4 Lenvatinib Impurity 114|C4X-1140114|42832-22-4 https://www.jk-sci.com/products/s57c4x-1140148 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_57533ccd-e7e8-4015-bbed-55b5755b54d2.png?v=1791383034 Lenvatinib Impurity 148, 98.00% Lenvatinib Impurity 148|C4X-1140148 https://www.jk-sci.com/products/s57c4x-11403 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a1e3373f2fb387067f65ac5ddad3f027.jpg?v=1791383024 Lenvatinib Impurity 3, 98.00% | 417719-51-8 Lenvatinib Impurity 3|C4X-11403|417719-51-8 https://www.jk-sci.com/products/s57c4x-114019 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ce0dfc402c99dc75dea4722fb92904bf.jpg?v=1791383031 Lenvatinib Impurity 19, 93.50% | 417724-81-3 Lenvatinib Impurity 19|C4X-114019|417724-81-3 https://www.jk-sci.com/products/s57c4x-10966 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f27cfc9adc95e1cb8bcadc06d6058ea6.jpg?v=1791384599 Azilsartan Impurity 6, 94.30% | 1696392-11-6 Azilsartan Impurity 6|C4X-10966|1696392-11-6 https://www.jk-sci.com/products/s57c4x-109341 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1238599_7d326768-c7e6-4e1b-8d65-85982acaa5e1.png?v=1791384815 Ticagrelor Impurity 41, 98.90% | 376608-65-0 Ticagrelor Impurity 41|C4X-109341|376608-65-0 https://www.jk-sci.com/products/s57c4x-110174 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/117503_208d40b0-7083-444c-a75e-91acfc81bc74.png?v=1791384350 Linagliptin Impurity 74, 99.90% | 2434-53-9 Linagliptin Impurity 74|C4X-110174|2434-53-9 https://www.jk-sci.com/products/s57c4x-111015 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e1ffd6a7d883c2335f2fc7b4bdf7fcf2.jpg?v=1791384158 Blonanserin Impurity 15, 99.10% | 132813-14-0 Blonanserin Impurity 15|C4X-111015|132813-14-0 https://www.jk-sci.com/products/s57c4x-110727 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3f8d1582c51767c1fd4254306e26ec8e.jpg?v=1791384276 rac-cis-7-Hydroxy-Pramipexole ( and enantiomer ), 83.50% | 1798014-87-5 rac-cis-7-Hydroxy-Pramipexole ( and enantiomer )|C4X-110727|1798014-87-5 https://www.jk-sci.com/products/s57c4x-111522 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c716db9f413a3ec3b77c91e3df9cbf73.jpg?v=1791383984 Cabazitaxel Impurity 22, Purity: 100.0% | 146924-92-7 Cabazitaxel Impurity 22|C4X-111522|146924-92-7 https://www.jk-sci.com/products/s57c4x-111225 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/75b7a75ba85e427d1887ae5df5fd6ced_31997582-22cb-460d-83e8-26f8816b8c36.jpg?v=1791384069 Omeprazole Impurity 25, 98.70% | 73590-93-9 Omeprazole Impurity 25|C4X-111225|73590-93-9 https://www.jk-sci.com/products/s57c4x-1118110 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f5238edc3061de73dd311e0744b4cb36.jpg?v=1791383939 Avanafil Impurity 110, 98.90% | 1368440-33-8 Avanafil Impurity 110|C4X-1118110|1368440-33-8 https://www.jk-sci.com/products/s57c4x-11185 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/36fcd268d1368b8b4189afa1d92c6cc9.jpg?v=1791383905 Avanafil Impurity 5, 99.50% | 372117-54-9 Avanafil Impurity 5|C4X-11185|372117-54-9 https://www.jk-sci.com/products/s57c4x-112123 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/29cb55d42e015ae5044fa67f19ee8f2e_fc93277f-4b15-442b-960e-8eb0c0211d1f.jpg?v=1791383812 Rabeprazole Impurity 23, 98.30% | 86604-74-2 Rabeprazole Impurity 23|C4X-112123|86604-74-2 https://www.jk-sci.com/products/s57c4x-112020 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/352741_8aa055e2-1244-40d4-a352-3dbbed1ede62.png?v=1791383841 (R,R)(S,S)-Benidipine Hydrochloride, 99.30% | 91599-74-5 (R,R)(S,S)-Benidipine Hydrochloride|C4X-112020|91599-74-5 https://www.jk-sci.com/products/s57c4x-112614 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/126109_de34d8b2-b43c-4d67-b947-4c7ff5225b71.png?v=1791383680 Pyridine-2,5-dicarbonitrile, 98.90% | 20730-07-8 Pyridine-2,5-dicarbonitrile|C4X-112614|20730-07-8 https://www.jk-sci.com/products/s57c4x-112458 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/10efee14e768f8e65baea4ad9378ae80.jpg?v=1791383735 2-Methylbenzenesulfonic acid Hydrate, Purity: 95.7% | 1914148-59-6 2-Methylbenzenesulfonic acid Hydrate|C4X-112458|1914148-59-6 https://www.jk-sci.com/products/s57c4x-112817 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/337156_d7937e09-0ae0-4147-a865-8d897ae5de23.png?v=1791383656 Sildenafil EP Impurity F (N-Desmethyl Sildenafil), 96.70% | 139755-82-1 Sildenafil EP Impurity F (N-Desmethyl Sildenafil)|C4X-112817|139755-82-1 https://www.jk-sci.com/products/s57c4x-11286 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/41470b18c7b5916a6c57ea33c8886b8d.jpg?v=1791383619 Sildenafil Impurity 6, 90.40% | 501120-42-9 Sildenafil Impurity 6|C4X-11286|501120-42-9 https://www.jk-sci.com/products/s57c4x-112825 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_1323d9c3-f77a-47f9-ac5a-d42f0a890919.png?v=1791383635 Sildenafil Impurity 25, 99.70% Sildenafil Impurity 25|C4X-112825 https://www.jk-sci.com/products/s57c4x-11298 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3e32ad38cfd669e6dad27f8ccd260524.jpg?v=1791383574 Arbidol Impurity 8, 98.70% | 1312943-26-2 Arbidol Impurity 8|C4X-11298|1312943-26-2 https://www.jk-sci.com/products/s57c4x-11292 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3f67bf78812b7fac6c9060b5246b9393.jpg?v=1791383596 Arbidol Impurity 2, 98.40% | 131707-24-9 Arbidol Impurity 2|C4X-11292|131707-24-9 https://www.jk-sci.com/products/s57c4x-1130174 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_547b9819-3459-422d-8cca-9323a70a1d00.png?v=1791383554 Ilaprazole Impurity 31 Hydrochloride, 84.70% Ilaprazole Impurity 31 Hydrochloride|C4X-1130174 https://www.jk-sci.com/products/s57c4x-113033 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_0c127b95-124b-4ac6-a2af-cdd025fd1741.png?v=1791383525 Ilaprazole Impurity 33, 98.80% Ilaprazole Impurity 33|C4X-113033 https://www.jk-sci.com/products/s57c4x-11306 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/49d0a4af6dee6507a5ec45c5f63df72a.jpg?v=1791383508 Ilaprazole Impurity 6, 90.60% | 1360824-57-2 Ilaprazole Impurity 6|C4X-11306|1360824-57-2 https://www.jk-sci.com/products/s57c4x-113114 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8b5e8fc0a73e630b8d697399d3b03372.jpg?v=1791383466 Brexpiprazole Impurity 14, 95.70% | 203395-59-9 Brexpiprazole Impurity 14|C4X-113114|203395-59-9 https://www.jk-sci.com/products/s57c4x-113134 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/26347ddbc701ee15342ac5123b27492b.jpg?v=1791383443 Brexpiprazole Impurity 34, 90.80% | 2247155-42-4 Brexpiprazole Impurity 34|C4X-113134|2247155-42-4 https://www.jk-sci.com/products/s57c4x-113153 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/205146_63c94cdd-3837-458f-93b8-b3287d625dde.png?v=1791383418 Brexpiprazole Impurity 53, Purity: 97.8% | 102-92-1 Brexpiprazole Impurity 53|C4X-113153|102-92-1 https://www.jk-sci.com/products/s57c4x-1132103 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1a94dce34ecf0163ed44d4337a8eef2e.jpg?v=1791383384 Atorvastatin Impurity 103, 96.10% | 1797905-42-0 Atorvastatin Impurity 103|C4X-1132103|1797905-42-0 https://www.jk-sci.com/products/s57c4x-113214 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/811a0a43aa867a51ed60791770bd5195.jpg?v=1791383366 (3S,5R)-Atorvastatin EP Impurity B (single configuration) Calcium salt, 83.90% | 887196-25-0 (3S,5R)-Atorvastatin EP Impurity B (single configuration) Calcium salt|C4X-113214|887196-25-0 https://www.jk-sci.com/products/s57c4x-113225 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/396559_b59b1e7f-c561-4bc1-935f-f157d42068c5.png?v=1791383344 Atorvastatin Acetonide t-Butyl Ester Side Chain (4R,6R)-Isomer, 100.00% | 125971-94-0 Atorvastatin Acetonide t-Butyl Ester Side Chain (4R,6R)-Isomer|C4X-113225|125971-94-0 https://www.jk-sci.com/products/s57c4x-1132152 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3a51d33b4c4aec52725b71eb97523983.jpg?v=1791383361 Atorvastatin Impurity 152, 90.50% | 191917-95-0 Atorvastatin Impurity 152|C4X-1132152|191917-95-0 https://www.jk-sci.com/products/s57c4x-113219 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/84010fa1a4ffe1b90b7a7501df437505.jpg?v=1791383352 Atorvastatin Ethyl Ester Impurity, 99.40% | 1146977-93-6 Atorvastatin Ethyl Ester Impurity|C4X-113219|1146977-93-6 https://www.jk-sci.com/products/s57c4x-113257 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/65abb3e67b69a98b2254111f506593b1.jpg?v=1791383330 Atorvastatin Impurity 57, 91.60% | 425408-16-8 Atorvastatin Impurity 57|C4X-113257|425408-16-8 https://www.jk-sci.com/products/s57c4x-113247 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/46e5f4fd4c1029fe58a30efc760863a6.jpg?v=1791383336 Atorvastatin EP Impurity A（Calcium salt）, 99.80% | 433289-83-9 Atorvastatin EP Impurity A（Calcium salt）|C4X-113247|433289-83-9 https://www.jk-sci.com/products/s57c4x-113263 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/980f2e4c4625b461fb3bae47144cc95a.jpg?v=1791383322 Atorvastatin Impurity 63, 94.40% | 196085-85-5 Atorvastatin Impurity 63|C4X-113263|196085-85-5 https://www.jk-sci.com/products/s57c4x-113411 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/19f68b82f9618e63066a2500cdd39871.jpg?v=1791383291 Neratinib Impurity 11, 94.60% | 1144516-16-4 Neratinib Impurity 11|C4X-113411|1144516-16-4 https://www.jk-sci.com/products/s57c4x-113287 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f233248ef2ac7e37bc2c11142c526f40.jpg?v=1791383302 Atorvastatin EP Impurity F(Sodium Salt), 93.30% | 1371615-56-3 Atorvastatin EP Impurity F(Sodium Salt)|C4X-113287|1371615-56-3 https://www.jk-sci.com/products/s57c4x-113278 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/08262ef7efd79defec5342e7d1dba90c.jpg?v=1791383313 Atorvastatin Impurity 78, 95.50% | 1116118-82-1 Atorvastatin Impurity 78|C4X-113278|1116118-82-1 https://www.jk-sci.com/products/s57c4x-113420 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_a40aefd0-a7c6-453e-b129-a166d58a6033.png?v=1791383281 Neratinib Impurity 20, Purity: 99.9% Neratinib Impurity 20|C4X-113420 https://www.jk-sci.com/products/s57c4x-113424 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/531e42ded27f8471a78777f647248317.jpg?v=1791383270 Neratinib Impurity 24, Purity: 100.0% | 848133-76-6 Neratinib Impurity 24|C4X-113424|848133-76-6 https://www.jk-sci.com/products/s57c4x-11351 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/241f9cbd2534779645b51e90864ad459.jpg?v=1791383264 Olaparib Impurity 1, 98.60% | 763114-26-7 Olaparib Impurity 1|C4X-11351|763114-26-7 https://www.jk-sci.com/products/a011018638 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c19e12916e2e6694cf97cbac1c18c458.jpg?v=1788933642 3-Azabicyclo[3.1.0]hexane hydrochloride, 97% | 73799-64-1 3-Azabicyclo[3.1.0]hexane hydrochloride, 97%|1018638|73799-64-1 https://www.jk-sci.com/products/j5307172 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a58605098f5298bb17d69cf064af2a5a.jpg?v=1791415923 (R,S)-2-Carboxymorpholine hydrochloride, Purity by HPLC ≥ 98% | 300582-83-6 (R,S)-2-Carboxymorpholine hydrochloride|07172|300582-83-6 https://www.jk-sci.com/products/s57c4x-1135122 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_db6ce05e-030e-47b7-9d52-5638d07da8fc.png?v=1791383249 Olaparib Impurity 122, Purity: 97.8% Olaparib Impurity 122|C4X-1135122 https://www.jk-sci.com/products/j5307184 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/910e3b5496fbc0b2ca0894735ec6165b.jpg?v=1791415909 Fmoc-pentafluoro-L-phenylalanine, Purity by HPLC ≥ 98% | 205526-32-5 Fmoc-pentafluoro-L-phenylalanine|07184|205526-32-5 https://www.jk-sci.com/products/s57c4x-113525 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/318266_4b6cd77b-52b9-4f67-a7ce-ce621e78bb15.png?v=1791383238 Olaparib Impurity 25, 99.50% | 57260-71-6 Olaparib Impurity 25|C4X-113525|57260-71-6 https://www.jk-sci.com/products/s57c4x-1135164 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_0e9a5989-854f-43f0-97bd-14abe00d16c8.png?v=1791383243 Olaparib Impurity 164, Purity: 99.7% Olaparib Impurity 164|C4X-1135164 https://www.jk-sci.com/products/j5307220 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c046c8777dd9891afebb00f43e8373be.jpg?v=1791415880 Fmoc-N-methyl-O-tert-butyl-L-tyrosine, Purity by HPLC ≥ 99% | 133373-24-7 Fmoc-N-methyl-O-tert-butyl-L-tyrosine|07220|133373-24-7 https://www.jk-sci.com/products/s57c4x-113535 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_2af947f8-6a64-41bf-953b-56f65f5d43cd.png?v=1791383231 Olaparib Impurity 35, 96.90% Olaparib Impurity 35|C4X-113535 https://www.jk-sci.com/products/j5307228 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d409f6cca42b3ab1580c27e996e1d2bb_0d9fe8f1-b852-491d-9747-e3c0023da3a1.jpg?v=1791415871 Polystyrene resin, Mesh Size 70 - 100 mesh | 9003-53-6 Polystyrene resin|07228|9003-53-6 https://www.jk-sci.com/products/s57c4x-113546 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_a3a45d13-8c75-4e5b-a2e8-86ab47db30c5.png?v=1791383219 Olaparib Impurity 46, 98.50% Olaparib Impurity 46|C4X-113546 https://www.jk-sci.com/products/j5305283 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/28e9a2042711e3485d1fca0b9bb2dcf0.jpg?v=1791417664 4-(Hydroxymethyl)-3-methoxyphenoxyacetic acid, Assay ≥ 95% | 83590-77-6 4-(Hydroxymethyl)-3-methoxyphenoxyacetic acid|05283|83590-77-6 https://www.jk-sci.com/products/j5305715 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5d1d96dfdfaf12e5f40bfd77b3f8fe4b.jpg?v=1791417210 Fmoc-L-glutamic acid, Purity by HPLC ≥ 98% | 121343-82-6 Fmoc-L-glutamic acid|05715|121343-82-6 https://www.jk-sci.com/products/s57c4x-11356 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5356cbc04eecdea82eabe126be5106c9.jpg?v=1791383213 Olaparib Impurity 6, 98.90% | 763113-06-0 Olaparib Impurity 6|C4X-11356|763113-06-0 https://www.jk-sci.com/products/j5305924 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/24ed72f64e9fa2ec76e57301a5b3d1a2.jpg?v=1791417003 D-Ala-D-Ala-OH, Purity by HPLC ≥ 95% | 923-16-0 D-Ala-D-Ala-OH|05924|923-16-0 https://www.jk-sci.com/products/s57c4x-113589 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_9ac94244-a0ad-43e6-b64c-f5fa9e4efdf2.png?v=1791383207 Olaparib Impurity 89 (Mixture E&Z), 94.10% Olaparib Impurity 89 (Mixture E&Z)|C4X-113589 https://www.jk-sci.com/products/s57c4x-113714 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5d95447d7f10be73459dbb37e926aa51.jpg?v=1791383198 Decitabine Alpha Isomer Impurity, 91.10% | 22432-95-7 Decitabine Alpha Isomer Impurity|C4X-113714|22432-95-7 https://www.jk-sci.com/products/s57c4x-113729 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_a2536b83-d065-4015-9713-307d0ded51fc.png?v=1791383190 Applicability of Decitabine System, Purity: 0.0% Applicability of Decitabine System|C4X-113729 https://www.jk-sci.com/products/s57c4x-1138108 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_f5022806-d0e3-4761-99fe-512ba820fa52.png?v=1791383187 Dapagliflozin Impurity 108, Purity: 99.9% Dapagliflozin Impurity 108|C4X-1138108 https://www.jk-sci.com/products/j5306054 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c322342ec561b53a66f07976cc910e7a.jpg?v=1791416868 L-Glutamic acid b-naphthylamide, Assay ≥ 88% (Nth 10.29% by elemental analysis) | 635-86-9 L-Glutamic acid b-naphthylamide|06054|635-86-9 https://www.jk-sci.com/products/s57c4x-1138142 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_6b7b6b05-58fa-466d-85bc-49618de993bf.png?v=1791383173 Dapagliflozin Impurity 142, Purity: 99.7% Dapagliflozin Impurity 142|C4X-1138142 https://www.jk-sci.com/products/j5306178 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0c4f6b5f2ab5b5d0ea781741580b5bfa.jpg?v=1791416750 L-Phenylalanine cyclohexylamide, Assay ≥ 99% (Elemental Analysis based on Nitrogen content) | 17186-53-7 L-Phenylalanine cyclohexylamide|06178|17186-53-7 https://www.jk-sci.com/products/s57c4x-113816 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/128429_6e58520b-6ce6-47eb-83e1-4f0d08c2cb16.png?v=1791383168 Dapagliflozin Impurity 16, 95.20% | 21739-92-4 Dapagliflozin Impurity 16|C4X-113816|21739-92-4 https://www.jk-sci.com/products/j5306252 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/897fac2c33a52e15fda618eb7f5538b0.jpg?v=1791416675 O-tert-Butyl-L-tyrosine allyl ester hydrochloride, Purity by HPLC ≥ 98% | 218938-62-6 O-tert-Butyl-L-tyrosine allyl ester hydrochloride|06252|218938-62-6 https://www.jk-sci.com/products/j5306344 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3b65af9d1583375de86c88794ad9d15f.jpg?v=1791416548 N-Methyl-DL-valine | 2566-32-7 N-Methyl-DL-valine|06344|2566-32-7 https://www.jk-sci.com/products/j5306373 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/06b21336c6f4c249e2e461cd98c07d18.jpg?v=1791416516 Z-g-carboxy-g-(di-tert-butyl ester)-DL-glutamic acid | 56877-43-1 Z-g-carboxy-g-(di-tert-butyl ester)-DL-glutamic acid|06373|56877-43-1 https://www.jk-sci.com/products/s57c4x-113820 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fc2478513b685e3a4b537dea012e0d16.jpg?v=1791383143 Dapagliflozin Impurity 20, 96.50% | 2169998-23-4 Dapagliflozin Impurity 20|C4X-113820|2169998-23-4 https://www.jk-sci.com/products/s57c4x-1138184 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_88a9ca9b-8117-4a7a-92dd-a4f7c928f0ea.png?v=1791383160 Dapagliflozin Impurity 184, Purity: 99.7% Dapagliflozin Impurity 184|C4X-1138184 https://www.jk-sci.com/products/s57c4x-113827 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b84c99a21301731c782962f7e40dd195.jpg?v=1791383130 Dapagliflozin Impurity 27, 99.80% | 461432-25-7 Dapagliflozin Impurity 27|C4X-113827|461432-25-7 https://www.jk-sci.com/products/j5306457 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/27097dba765d10efaf80634064e74152.jpg?v=1791416439 Na-Z-DL-asparagine, Purity by HPLC ≥ 98% | 29880-22-6 Na-Z-DL-asparagine|06457|29880-22-6 https://www.jk-sci.com/products/j5306420 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/409328b48223b84a1bd88ba2cefa64b9.jpg?v=1791416483 Z-D-Ala-Gly-OH, Purity ≥ 95% | 34286-66-3 Z-D-Ala-Gly-OH|06420|34286-66-3 https://www.jk-sci.com/products/j5306546 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6fa3e4528a802c5b0c3bdd0de8b45c9b.jpg?v=1791416382 Z-4-fluoro-L-phenylalanine chloromethylketone | 400771-48-4 Z-4-fluoro-L-phenylalanine chloromethylketone|06546|400771-48-4 https://www.jk-sci.com/products/s57c4x-113833 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6a717732aad3a6963764fed19215afa7.jpg?v=1791383122 Dapagliflozin C2 Epimer, 98.10% | 2133407-75-5 Dapagliflozin C2 Epimer|C4X-113833|2133407-75-5 https://www.jk-sci.com/products/a011413142 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/222ce5c982a4c9abe41a235ac6c7e4a9.jpg?v=1790216193 4-([2,2':6',2''-Terpyridin]-4'-yl)benzoic Acid, 98% | 158014-74-5 4-([2,2':6',2''-Terpyridin]-4'-yl)benzoic Acid, 98%|1413142|158014-74-5 https://www.jk-sci.com/products/s57c4x-11387 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/47036f0e825db0dce3cb66c999e3254f.jpg?v=1791383101 Dapagliflozin Impurity 7, 95.70% | 960404-86-8 Dapagliflozin Impurity 7|C4X-11387|960404-86-8 https://www.jk-sci.com/products/s57c4x-113851 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_c98e6608-23ec-447c-9997-6e599e510a4f.png?v=1791383108 Dapagliflozin Impurity 51, Purity: 95.5% Dapagliflozin Impurity 51|C4X-113851 https://www.jk-sci.com/products/j5306599 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dea831ef7c9a6e5901bcd70af5c4a146.jpg?v=1791416361 Z-Val-Phe-OH, Purity by HPLC ≥ 99% | 19542-51-9 Z-Val-Phe-OH|06599|19542-51-9 https://www.jk-sci.com/products/s57c4x-113891 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_748309bd-a149-4f94-b0d8-2a27117607f7.png?v=1791383086 Dapagliflozin Impurity 91, 94.90% Dapagliflozin Impurity 91|C4X-113891 https://www.jk-sci.com/products/s57c4x-113887 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_34e73ede-f4a7-4526-ab4f-484c6617e46f.png?v=1791383095 Dapagliflozin Impurity 87, 95.70% Dapagliflozin Impurity 87|C4X-113887 https://www.jk-sci.com/products/j5306653 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8799c4fc159c1033583083e8f9c2f685.jpg?v=1791416322 Na-Boc-Ne-Z-L-lysine methyl ester | 73548-77-3 Na-Boc-Ne-Z-L-lysine methyl ester|06653|73548-77-3 https://www.jk-sci.com/products/s57c4x-11393 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ae15b727bb9000536a52b3c7c2e65cb0.jpg?v=1791383074 Cefixime EP Impurity F, 93.90% | 79368-95-9 Cefixime EP Impurity F|C4X-11393|79368-95-9 https://www.jk-sci.com/products/j5306723 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a34552841e935ad8f2983f667a3bee19.jpg?v=1791416279 Methoxycarbonyl-glycine | 1670-97-9 Methoxycarbonyl-glycine|06723|1670-97-9 https://www.jk-sci.com/products/j5306852 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/182289836a9edeecc4229831b1fe4175.jpg?v=1791416191 S-4-Methylbenzyl-L-penicillamine, Purity by HPLC ≥ 98% | 1039102-11-8 S-4-Methylbenzyl-L-penicillamine|06852|1039102-11-8 https://www.jk-sci.com/products/s57c4x-113948 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e724879ad7a26140b8a63c8abfd6a6fb.jpg?v=1791383068 Cefixime Trihydrate, Purity: 99.2% | 125110-14-7 Cefixime Trihydrate|C4X-113948|125110-14-7 https://www.jk-sci.com/products/s57c4x-11398 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/566907_735f71ac-8699-4d7c-b7cd-b0f21b6f0b00.png?v=1791383059 Cefdinir CP Impurity C, 97.90% | 79349-82-9 Cefdinir CP Impurity C|C4X-11398|79349-82-9 https://www.jk-sci.com/products/j5306915 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7192ed722807886e4ac5d41ab8d65cf9.jpg?v=1791416164 Na-Fmoc-Ne-(Boc-2-aminobenzoyl)-L-lysine, Chiral HPLC ≥ 99% || Purity by HPLC ≥ 98% | 159322-59-5 Na-Fmoc-Ne-(Boc-2-aminobenzoyl)-L-lysine|06915|159322-59-5 https://www.jk-sci.com/products/j5307011 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/556fee634fa90c551db50a2a40291c4b.jpg?v=1791416125 Boc-4-tert-butyl-D-phenylalanine dicyclohexylammonium salt, Purity by HPLC ≥ 99% | 250611-12-2 Boc-4-tert-butyl-D-phenylalanine dicyclohexylammonium salt|07011|250611-12-2 https://www.jk-sci.com/products/s57c4x-114011 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5a4571eb485e7d8369ba7e6d17a1a456.jpg?v=1791383042 Lenvatinib Impurity 11, Purity: 99.9% | 2613141-84-5 Lenvatinib Impurity 11|C4X-114011|2613141-84-5 https://www.jk-sci.com/products/a011413248 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2d1649c557fd3b028ab9fc316bbd639a.jpg?v=1788001388 4-Methylcoumarin, 97% | 607-71-6 4-Methylcoumarin, 97%|1413248|607-71-6 https://www.jk-sci.com/products/s57c4x-1140170 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/78306c35388df4ce9be0c9093702709b.jpg?v=1791383031 Lenvatinib Impurity 170, 64.30% | 20404-02-8 Lenvatinib Impurity 170|C4X-1140170|20404-02-8 https://www.jk-sci.com/products/j5307045 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c7832b37b133cb57f860dd5873d614ff.jpg?v=1791416089 4-Fluoro-L-phenylalanine ethyl ester hydrochloride, Purity by HPLC ≥ 98% | 1534-90-3 4-Fluoro-L-phenylalanine ethyl ester hydrochloride|07045|1534-90-3 https://www.jk-sci.com/products/s57c4x-114031 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f2c7b03233f7f4b947aa08504397370c.jpg?v=1791383025 Lenvatinib Impurity 31, Purity: 98.5% | 417722-95-3 Lenvatinib Impurity 31|C4X-114031|417722-95-3 https://www.jk-sci.com/products/j5307068 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ec34e7513c0f51b3d4daf17baa7d4464.jpg?v=1791416056 DL-Isoserine, Assay ≥ 99% (Elemental analysis) | 565-71-9 DL-Isoserine|07068|565-71-9 https://www.jk-sci.com/products/s57c4x-114040 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ac0b0330fa82c57bb47567a9b696006c.jpg?v=1791383019 Lenvatinib Impurity 40, 99.30% | 417722-93-1 Lenvatinib Impurity 40|C4X-114040|417722-93-1 https://www.jk-sci.com/products/j5307059 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/eff6dd6246121f1ea4c18205603087c9.jpg?v=1791416068 Fmoc-Nw-(2,2,5,7,8-pentamethylchroman-6-sulfonyl)-L-homoarginine, Purity by HPLC ≥ 99% | 214852-52-5 Fmoc-Nw-(2,2,5,7,8-pentamethylchroman-6-sulfonyl)-L-homoarginine|07059|214852-52-5 https://www.jk-sci.com/products/j5307085 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e421c2ae87a85b89b57ffaf1f983ebb7.jpg?v=1791416031 O-Phospho-L-serine, Assay by titration ≥ 99% | 407-41-0 O-Phospho-L-serine|07085|407-41-0 https://www.jk-sci.com/products/a011413358 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6621a166040b4ef654f605330321f072.jpg?v=1790086896 3-Oxours-12-en-28-oic acid, 98% | 6246-46-4 3-Oxours-12-en-28-oic acid, 98%|1413358|6246-46-4 https://www.jk-sci.com/products/s57c4x-114068 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/315328_b62dc3fd-5c48-4ce2-8457-9b2786207650.png?v=1791383013 Lenvatinib Impurity 68, Purity: 99.3% | 17609-80-2 Lenvatinib Impurity 68|C4X-114068|17609-80-2 https://www.jk-sci.com/products/s57c4x-1141 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/622202.png?v=1791383006 Aprepitant, 99.80% | 170729-80-3 Aprepitant|C4X-1141|170729-80-3 https://www.jk-sci.com/products/s57c4x-114112 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f5d14b4d6e0f2248a2d37aa9cf7f47a2.jpg?v=1791383000 Aprepitant Impurity 12, 91.10% | 172673-23-3 Aprepitant Impurity 12|C4X-114112|172673-23-3 https://www.jk-sci.com/products/a011413676 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/58dd18323e8f68dc433555c16795ca3a.jpg?v=1788931519 LY2811376, 99% | 1194044-20-6 LY2811376, 99%|1413676|1194044-20-6 https://www.jk-sci.com/products/s57c4x-114129 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4202d9c3c6ea41818eff8e12912656b6.jpg?v=1791382997 Aprepitant Impurity 29, Purity: 97.9% | 874460-46-5 Aprepitant Impurity 29|C4X-114129|874460-46-5 https://www.jk-sci.com/products/s57c4x-114131 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/544552da96004156ac3602e04600ddc3.jpg?v=1791382990 Aprepitant Impurity 31, 97.00% | 2348441-63-2 Aprepitant Impurity 31|C4X-114131|2348441-63-2 https://www.jk-sci.com/products/s57c4x-114138 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/117115_fd65785c-e87a-476e-ac24-e8a5b2ad64f9.png?v=1791382988 Aprepitant Impurity 38, 99.20% | 127852-28-2 Aprepitant Impurity 38|C4X-114138|127852-28-2 https://www.jk-sci.com/products/s57c4x-114156 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_c35c07c3-d533-4da6-aec3-a6294d3a6331.png?v=1791382983 Aprepitant impurity 56, Purity: 99.9% Aprepitant impurity 56|C4X-114156 https://www.jk-sci.com/products/j5307104 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6c974be2ec26f9dfd988a56b012f0b7d.jpg?v=1791416009 Na-Fmoc-Ng-(4,4-dimethyl-2,6-dioxocyclohex-1-ylidene)-3-methylbutyl-D-2,4-diaminobutyric acid, Assay by titration ≥ 92% || Purity by HPLC ≥ 99% | 872169-32-9 Na-Fmoc-Ng-(4,4-dimethyl-2,6-dioxocyclohex-1-ylidene)-3-methylbutyl-D-2,4-diaminobutyric acid|07104|872169-32-9 https://www.jk-sci.com/products/a011414219 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/40eeae1a1ac35dd550eaa56f6a10a72f.jpg?v=1788931494 6-Hydroxy-5H-pyrrolo[3,4-b]pyridine-5,7(6H)-dione, 98% | 23439-87-4 6-Hydroxy-5H-pyrrolo[3,4-b]pyridine-5,7(6H)-dione, 98%|1414219|23439-87-4 https://www.jk-sci.com/products/j5307119 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/69247a42425d419aef50d6f0f6ba225c.jpg?v=1791415991 Boc-(4-aminomethyl) benzoic acid, Purity by HPLC ≥ 98% | 33233-67-9 Boc-(4-aminomethyl) benzoic acid|07119|33233-67-9 https://www.jk-sci.com/products/s57c4x-11418 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/96d812f0e211d08151e26e4ce104bdff_a805bf82-b13c-41e0-8276-de7a34c4dad3.jpg?v=1791382971 Aprepitant EP Impurity A, Purity: 98.9% | 170729-76-7 Aprepitant EP Impurity A|C4X-11418|170729-76-7 https://www.jk-sci.com/products/s57c4x-11441 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f69abac297db2137f8782c3097d6f005.jpg?v=1791382971 Sitagliptin EP Impurity A, 97.30% | 823817-55-6 Sitagliptin EP Impurity A|C4X-11441|823817-55-6 https://www.jk-sci.com/products/s57c4x-114412 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_ede1fcec-9136-45d0-a17a-9620e3fb0049.png?v=1791382960 Sitagliptin Impurity 12 HCl, 98.50% Sitagliptin Impurity 12 HCl|C4X-114412 https://www.jk-sci.com/products/s57c4x-1144107 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ad75f325269d11257d3a9ace93cef574.jpg?v=1791382965 Sitagliptin Impurity 107, Purity: 95.7% | 89124-06-1 Sitagliptin Impurity 107|C4X-1144107|89124-06-1 https://www.jk-sci.com/products/s57c4x-114428 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/493846.png?v=1791382941 Sitagliptin Impurity 28, 99.90% | 486460-00-8 Sitagliptin Impurity 28|C4X-114428|486460-00-8 https://www.jk-sci.com/products/s57c4x-1144138 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ef5297fff333d835096ec573146cc394.jpg?v=1791382960 Sitagliptin Impurity 138, 99.80% | 1283583-85-6 Sitagliptin Impurity 138|C4X-1144138|1283583-85-6 https://www.jk-sci.com/products/s57c4x-114416 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/839b5d84fe8667e95250a89db76a31bd.jpg?v=1791382947 Sitagliptin Impurity 16, 99.30% | 849832-73-1 Sitagliptin Impurity 16|C4X-114416|849832-73-1 https://www.jk-sci.com/products/s57c4x-114433 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f7041c0aad4059681b9bfd3cc37fc90a.jpg?v=1791382931 Sitagliptin Impurity 33, 99.30% | 936630-57-8 Sitagliptin Impurity 33|C4X-114433|936630-57-8 https://www.jk-sci.com/products/s57c4x-114431 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/392771201802f3f831759965b4e95983.jpg?v=1791382936 Sitagliptin EP Impurity C, 95.10% | 945261-48-3 Sitagliptin EP Impurity C|C4X-114431|945261-48-3 https://www.jk-sci.com/products/s57c4x-114422 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/988a79aff24516f2e51f9e9dfa222701.jpg?v=1791382943 Sitagliptin Impurity 22, 98.60% | 486460-23-5 Sitagliptin Impurity 22|C4X-114422|486460-23-5 https://www.jk-sci.com/products/s57c4x-114457 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d09a64adee95f378015eeec00afaa881_488fb60e-81d4-4d12-b0a1-6193d75e3bfe.jpg?v=1791382925 Sitagliptin Impurity 57, 95.30% | 1803026-58-5 Sitagliptin Impurity 57|C4X-114457|1803026-58-5 https://www.jk-sci.com/products/s57c4x-11444 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cc692e101b9c5052a5b25160503963cf.jpg?v=1791382926 Sitagliptin Impurity 4, 96.90% | 764667-65-4 Sitagliptin Impurity 4|C4X-11444|764667-65-4 https://www.jk-sci.com/products/s57c4x-114462 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/814231.png?v=1791382914 Sitagliptin Impurity 62, 93.40% | 723286-98-4 Sitagliptin Impurity 62|C4X-114462|723286-98-4 https://www.jk-sci.com/products/s57c4x-114474 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0614bb394af08b1e71ea75c51b95d5cf.jpg?v=1791382907 Sitagliptin Impurity 74, 98.80% | 3056-18-6 Sitagliptin Impurity 74|C4X-114474|3056-18-6 https://www.jk-sci.com/products/s57c4x-114466 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/179ac7d75353ba4e5c83b1b47d79b03c.jpg?v=1791382910 Sitagliptin Triazecine Analog, 98.90% | 2805078-75-3 Sitagliptin Triazecine Analog|C4X-114466|2805078-75-3 https://www.jk-sci.com/products/j5307147 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/eb52e5bd7423932b813f5dcda8ea0f85.jpg?v=1791415950 Trityl-1,2-ethylenediamine acetic acid salt, Purity by HPLC ≥ 98% | 1170595-42-2 Trityl-1,2-ethylenediamine acetic acid salt|07147|1170595-42-2 https://www.jk-sci.com/products/j5307175 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b28ad0c5dbac73e8c1a60caa7cef90df.jpg?v=1791415918 H-b-Cyclopropyl-L-alanine, Chiral HPLC ≥ 99% (ee) || Purity ≥ 99% | 102735-53-5 H-b-Cyclopropyl-L-alanine|07175|102735-53-5 https://www.jk-sci.com/products/s57c4x-114478 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b12e039262eb59b1c8c0c21f5ecc219a.jpg?v=1791382906 Sitagliptin Impurity 78 (Nitroso-STG-19) (NTTP), 99.70% | 2892260-32-9 Sitagliptin Impurity 78 (Nitroso-STG-19) (NTTP)|C4X-114478|2892260-32-9 https://www.jk-sci.com/products/j5307224 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0c71d0b794056087754e5cd6e23a4174.jpg?v=1791415872 Boc-L-asparaginol, Purity by HPLC ≥ 98% | 30044-67-8 Boc-L-asparaginol|07224|30044-67-8 https://www.jk-sci.com/products/j5307247 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f2f417ec10ebc64249c4cd63053ee6b1.jpg?v=1791415841 2-Bromobenzyl bromide, Purity by GC ≥ 99% | 3433-80-5 2-Bromobenzyl bromide|07247|3433-80-5 https://www.jk-sci.com/products/j5307269 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/907effdc046d216df58a2dfd464e5a60.jpg?v=1791415819 Boc-L-glutamic acid g-allyl ester, Purity by HPLC ≥ 97% | 132286-79-4 Boc-L-glutamic acid g-allyl ester|07269|132286-79-4 https://www.jk-sci.com/products/j5307236 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/159264f0da3a239825f85b5625c4013e.jpg?v=1791415862 D-Tyrosine benzyl ester, Purity ≥ 98% | 65733-15-5 D-Tyrosine benzyl ester|07236|65733-15-5 https://www.jk-sci.com/products/s57c4x-114486 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a7bcd2a8b5ab5fec22f8a90ad85adf5c.jpg?v=1791382900 Sitagliptin Impurity 86, 99.40% | 1246961-45-4 Sitagliptin Impurity 86|C4X-114486|1246961-45-4 https://www.jk-sci.com/products/j5307274 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a4ebe0d425a8f1c7adc064ef5c89d21d.jpg?v=1791415809 Boc-3,4-difluoro-DL-phenylalanine, Purity by HPLC ≥ 99% | 1214041-87-8 Boc-3,4-difluoro-DL-phenylalanine|07274|1214041-87-8 https://www.jk-sci.com/products/s57c4x-114499 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0ef603f31d6a1f28c335eb98afe694a9.jpg?v=1791382901 Sitagliptin Impurity 99, 88.50% | 486459-88-5 Sitagliptin Impurity 99|C4X-114499|486459-88-5 https://www.jk-sci.com/products/s57c4x-114613 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/40b93b5e682407a8fba756ac105149ee.jpg?v=1791382882 Clavulanate Potassium EP Impurity G, 99.00% | 374816-32-7 Clavulanate Potassium EP Impurity G|C4X-114613|374816-32-7 https://www.jk-sci.com/products/s57c4x-114610 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fe1e03755dd484cc41ecbe0ab74daff4.jpg?v=1791382885 Clavulanate Potassium EP Impurity D, 97.20% | 404839-11-8 Clavulanate Potassium EP Impurity D|C4X-114610|404839-11-8 https://www.jk-sci.com/products/j5307287 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8424dab857c0c9bdb91d6957f9959748.jpg?v=1791415800 L-3,4-Dimethoxyphenylalanine, Assay ≥ 95% | 32161-30-1 L-3,4-Dimethoxyphenylalanine|07287|32161-30-1 https://www.jk-sci.com/products/s57c4x-11464 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/275454.png?v=1791382877 Potassium Clavulanate EP Impurity L, 90.30% | 4013-94-9 Potassium Clavulanate EP Impurity L|C4X-11464|4013-94-9 https://www.jk-sci.com/products/s57c4x-11467 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/620c26a517907c9237a8fd901c6e92c0.jpg?v=1791382876 Clavulanate Potassium EP Impurity A, 91.10% | 4744-51-8 Clavulanate Potassium EP Impurity A|C4X-11467|4744-51-8 https://www.jk-sci.com/products/j5307304 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5a2e114c05b70b46b1ced1b13c8aab12.jpg?v=1791415788 Boc-allyl-D-glycine dicyclohexylammonium salt, Purity ≥ 98% | 221352-64-3 Boc-allyl-D-glycine dicyclohexylammonium salt|07304|221352-64-3 https://www.jk-sci.com/products/s57c4x-114811 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/24b28e5223dedb9f837147d4e500d3e9.jpg?v=1791382867 Amoxicillin EP Impurity K, 91.40% | 2088961-38-8 Amoxicillin EP Impurity K|C4X-114811|2088961-38-8 https://www.jk-sci.com/products/s57c4x-11469 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8022cc769b1773ead3e76682b4edc258.jpg?v=1791382872 Clavulanate Potassium EP Impurity C, 92.00% | 86917-74-0 Clavulanate Potassium EP Impurity C|C4X-11469|86917-74-0 https://www.jk-sci.com/products/s57c4x-114817 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4f160d274d8ea8c6c7dad74cd2a306cd.jpg?v=1791382862 Amoxicillin Impurity 17, 91.80% | 1313237-94-3 Amoxicillin Impurity 17|C4X-114817|1313237-94-3 https://www.jk-sci.com/products/j5307307 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c84dd5274b9164113c727dc026e4c134.jpg?v=1791415783 Fmoc-allyl-L-glycine, Chiral HPLC ≥ 99% (ee) || Purity by HPLC ≥ 99% | 146549-21-5 Fmoc-allyl-L-glycine|07307|146549-21-5 https://www.jk-sci.com/products/a011414740 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b0b1d62c8afbfeed22b3e0810f133807.jpg?v=1788931488 tert-Butyl (4-(bromomethyl)phenyl)carbamate, 97% | 239074-27-2 tert-Butyl (4-(bromomethyl)phenyl)carbamate, 97%|1414740|239074-27-2 https://www.jk-sci.com/products/j5307325 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d240dd1936a2f218655aec9180602db5.jpg?v=1791415749 Boc-(DL)-2-aminotetraline-2-carboxylic acid, Purity by HPLC ≥ 98% | 98569-12-1 Boc-(DL)-2-aminotetraline-2-carboxylic acid|07325|98569-12-1 https://www.jk-sci.com/products/s57c4x-114824 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_13c0dea8-7252-4c1b-8da3-e7b9bcec7866.png?v=1791382859 Amoxicillin related compound M, 90.10% Amoxicillin related compound M|C4X-114824 https://www.jk-sci.com/products/j5307329 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/99a15e2799959140fe32b8adc65a240f.jpg?v=1791415739 Fmoc-L-azetidine-2-carboxylic acid, Purity by HPLC ≥ 99% | 136552-06-2 Fmoc-L-azetidine-2-carboxylic acid|07329|136552-06-2 https://www.jk-sci.com/products/s57c4x-114831 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1c23c0be852189d428b81e56a001f821.jpg?v=1791382854 Amoxicillin Impurity 31, purity：96.1% | 43189-12-4 Amoxicillin Impurity 31|C4X-114831|43189-12-4 https://www.jk-sci.com/products/a011415235 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/64518abf663831c5fa606a25d9f508d1.jpg?v=1788931473 3-Aminopyrazin-2(1H)-one, 97% | 43029-19-2 3-Aminopyrazin-2(1H)-one, 97%|1415235|43029-19-2 https://www.jk-sci.com/products/s57c4x-114836 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_cf8a9cc6-afea-4cb2-92ba-9b7fc881b4de.png?v=1791382844 Amoxicillin Impurity 36, 92.60% Amoxicillin Impurity 36|C4X-114836 https://www.jk-sci.com/products/j5307348 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/476b4647158f8702388249f88211a11d.jpg?v=1791415698 Fmoc-3-styryl-D-alanine, Purity by HPLC ≥ 99% | 215190-23-1 Fmoc-3-styryl-D-alanine|07348|215190-23-1 https://www.jk-sci.com/products/s57c4x-114850 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6d14e078edfba0ac6db0ebc85003451d_1be9df66-d20d-4a40-aaa6-57d840b6c740.jpg?v=1791382843 Amoxicillin Impurity 50, 97.50% | 127369-30-6 Amoxicillin Impurity 50|C4X-114850|127369-30-6 https://www.jk-sci.com/products/j5307358 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d0f8b9e8c28518054714acb36a27a0e8.jpg?v=1791415680 Boc-3-(2-aminoethyl)-1-carboxymethylquinazoline-2,4-dione, Purity by HPLC ≥ 99% | 215190-30-0 Boc-3-(2-aminoethyl)-1-carboxymethylquinazoline-2,4-dione|07358|215190-30-0 https://www.jk-sci.com/products/s57c4x-11486 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f9f1b4ffd8aef737c3055dfa0ec0cfe1.jpg?v=1791382835 Amoxicillin EP Impurity E, 93.20% | 1356020-01-3 Amoxicillin EP Impurity E|C4X-11486|1356020-01-3 https://www.jk-sci.com/products/j5307365 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4d7325a12385daaeaa2b9444f264c9ca.jpg?v=1791415666 Boc-(R,S)-3-hydroxypiperidine | 85275-45-2 Boc-(R,S)-3-hydroxypiperidine|07365|85275-45-2 https://www.jk-sci.com/products/j5307378 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d430dec10fc8ac26a06abe0b39e8270b.jpg?v=1791415651 Boc-3-(4-thiazolyl)-L-alanine, Chiral HPLC ≥ 98% (ee) || Purity by HPLC ≥ 98% | 119434-75-2 Boc-3-(4-thiazolyl)-L-alanine|07378|119434-75-2 https://www.jk-sci.com/products/j5307375 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dd2bce1ab3d1bb3da06675d7d82fc347.jpg?v=1791415656 Na,g-Bis-Boc-2,4-diaminobutyric acid dicyclohexylammonium salt, Assay by titration > 99% || Purity by HPLC ≥ 98% | 201472-66-4 Na,g-Bis-Boc-2,4-diaminobutyric acid dicyclohexylammonium salt|07375|201472-66-4 https://www.jk-sci.com/products/s57c4x-11488 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/09dd678043b7e296efbe8840b2b75f1c.jpg?v=1791382835 Amoxicillin EP Impurity H, Purity: 92.8% | 205826-86-4 Amoxicillin EP Impurity H|C4X-11488|205826-86-4 https://www.jk-sci.com/products/s57c4x-1149 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/555210_cde4ffc7-c0b2-454a-ab97-69c09a69cb15.png?v=1791382830 Cefoperazone Sodium, 88.70% | 62893-20-3 Cefoperazone Sodium|C4X-1149|62893-20-3 https://www.jk-sci.com/products/j5307387 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e49ee2b349b89e813f72d829e79e8e52.jpg?v=1791415637 Fmoc-3-trifluoromethyl-D-phenylalanine, Purity by HPLC ≥ 99% | 205526-28-9 Fmoc-3-trifluoromethyl-D-phenylalanine|07387|205526-28-9 https://www.jk-sci.com/products/j5307390 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1b14d674a1ecb1a2a9380e6027449033.jpg?v=1791415633 Boc-p-trifluoromethyl-L-phenylalanine, Chiral HPLC ≥ 98% (ee) || Purity by HPLC ≥ 99% | 114873-07-3 Boc-p-trifluoromethyl-L-phenylalanine|07390|114873-07-3 https://www.jk-sci.com/products/s57c4x-114910 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/360519.png?v=1791382823 Cefoperazone Impurity 10, 70.30% | 59703-00-3 Cefoperazone Impurity 10|C4X-114910|59703-00-3 https://www.jk-sci.com/products/a011415547 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/652b3c80d03b1170d60597fa7cd7eb0d.jpg?v=1788001264 Huperzine C, 98% | 163089-71-2 Huperzine C, 98%|1415547|163089-71-2 https://www.jk-sci.com/products/j5307397 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ba06cc55b59739a3320cfaf211f50b94.jpg?v=1791415625 Boc-3,4,5-trifluoro-D-phenylalanine, Purity by HPLC ≥ 98% | 205445-55-2 Boc-3,4,5-trifluoro-D-phenylalanine|07397|205445-55-2 https://www.jk-sci.com/products/j5307415 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c8dc9e5464e031c4172a8d2f9fcc1869.jpg?v=1791415594 Boc-b-(3-thienyl)-D-alanine dicyclohexylammonium salt, Purity by HPLC ≥ 98% | 226880-86-0 Boc-b-(3-thienyl)-D-alanine dicyclohexylammonium salt|07415|226880-86-0 https://www.jk-sci.com/products/j5307410 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/56d47f7a6b3c9c4496e4244bf9d4c932.jpg?v=1791415600 Boc-3-styryl-L-alanine dicyclohexylamine salt, Purity by HPLC ≥ 99% | 261165-04-2 Boc-3-styryl-L-alanine dicyclohexylamine salt|07410|261165-04-2 https://www.jk-sci.com/products/a01141596 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/472311.png?v=1790216173 2,4-Difluorophenylboronic acid, 98% | 144025-03-6 2,4-Difluorophenylboronic acid, 98%|141596|144025-03-6 https://www.jk-sci.com/products/s57c4x-114922 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/331208_1d7fe45b-4777-4955-b0e7-1c1ada8899fa.png?v=1791382817 Cefoperazone Impurity 22, Purity: 99.9% | 62893-24-7 Cefoperazone Impurity 22|C4X-114922|62893-24-7 https://www.jk-sci.com/products/j5307439 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/aed3e43fc48158b772f4ca1a675e811a.jpg?v=1791415549 b-(3-Thienyl)-D-alanine, Purity by HPLC ≥ 98% | 152612-26-5 b-(3-Thienyl)-D-alanine|07439|152612-26-5 https://www.jk-sci.com/products/j5307424 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a1061f57716006abd2d05e38c666e0a2.jpg?v=1791415578 Fmoc-D-propraglycine, Purity by HPLC ≥ 99% | 220497-98-3 Fmoc-D-propraglycine|07424|220497-98-3 https://www.jk-sci.com/products/j5307432 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ac9ad1fd13cfd658e40a856bdac57103.jpg?v=1791415562 L-2,4-Dichlorophenylalanine, Chiral HPLC ≥ 98% (ee) || Purity by HPLC ≥ 99% | 111119-36-9 L-2,4-Dichlorophenylalanine|07432|111119-36-9 https://www.jk-sci.com/products/a011417111 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ddbd8eb3f99c40711891dd8dd0462666.jpg?v=1788001203 Di (1 hydrogen imidazolyl) imine, 97% | 104619-51-4 Di (1 hydrogen imidazolyl) imine, 97%|1417111|104619-51-4 https://www.jk-sci.com/products/j5307474 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1defb5c61876939eb2f0592d38ff9bd9.jpg?v=1791415535 Na-Z-L-asparagine methyl ester, Purity by HPLC ≥ 98% | 4668-37-5 Na-Z-L-asparagine methyl ester|07474|4668-37-5 https://www.jk-sci.com/products/j5307508 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2cc17e5a32b6e6aa93fc106ad3777e1f.jpg?v=1791415532 Z-glycyl glycine hydroxysuccinimide ester, Purity by HPLC ≥ 99% | 32943-08-1 Z-glycyl glycine hydroxysuccinimide ester|07508|32943-08-1 https://www.jk-sci.com/products/j5307443 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/afa0b9c9e5701993f2d608c3a5e34b78.jpg?v=1791415542 H-b-(2-Furyl)-D-alanine, Assay ≥ 98% | 110772-46-8 H-b-(2-Furyl)-D-alanine|07443|110772-46-8 https://www.jk-sci.com/products/s57c4x-114939 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_9b4b39ed-f124-4579-83f2-a0bd5d57dd62.png?v=1791382807 Cefoperazone Impurity 39, 93.20% Cefoperazone Impurity 39|C4X-114939 https://www.jk-sci.com/products/s57c4x-11496 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8dd837052fe42b0892eddccbe07c08bd.jpg?v=1791382805 Cefoperazone EP Impurity F, Purity: 95.1% | 1315481-36-7 Cefoperazone EP Impurity F|C4X-11496|1315481-36-7 https://www.jk-sci.com/products/j5307529 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a5e4f9ae66e2b09d4a9679736d9e0c6e.jpg?v=1791415530 Z-Gly-Tyr-NH2, Purity by HPLC ≥ 98% | 17263-44-4 Z-Gly-Tyr-NH2|07529|17263-44-4 https://www.jk-sci.com/products/s57c4x-1153 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/32f04c3078629e54f04ed82404a1ada8.jpg?v=1791382793 Obeticholic Acid, 99.00% | 459789-99-2 Obeticholic Acid|C4X-1153|459789-99-2 https://www.jk-sci.com/products/j5304365 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e8d712c55bbaf3a3ba408c8deec68ac6.jpg?v=1791418433 Acetyl-4-iodo-D-phenylalanine, Purity by HPLC ≥ 97% | 201351-59-9 Acetyl-4-iodo-D-phenylalanine|04365|201351-59-9 https://www.jk-sci.com/products/s57c4x-11522 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dde68f851d031739d713834274ad27d4.jpg?v=1791382802 Adefovir Impurity 2, Purity: 90.8% | 323201-05-4 Adefovir Impurity 2|C4X-11522|323201-05-4 https://www.jk-sci.com/products/j5306131 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/32fef480c2b0cbbffe1dc115e44b33a9.jpg?v=1791416803 Ne-Boc-L-lysine 4-nitroanilide, Assay by titration ≥ 98% || Purity by HPLC ≥ 99% | 172422-76-3 Ne-Boc-L-lysine 4-nitroanilide|06131|172422-76-3 https://www.jk-sci.com/products/j5305836 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1dcd167fb7cd3d503d82875d789f1240.jpg?v=1791417084 L-Alanine 4-nitroanilide hydrochloride, Purity by HPLC ≥ 99% | 31796-55-1 L-Alanine 4-nitroanilide hydrochloride|05836|31796-55-1 https://www.jk-sci.com/products/s57c4x-115232 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a5571f03c513599801f7edf836d5d2df.jpg?v=1791382798 Adefovir Impurity 32, 96.40% | 18997-19-8 Adefovir Impurity 32|C4X-115232|18997-19-8 https://www.jk-sci.com/products/a011417249 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4af6ee82ed96c0a0e75ad127da1aa929.jpg?v=1788931399 4-[Bis(4-methoxyphenyl)amino]benzaldehyde, 98% | 89115-20-8 4-[Bis(4-methoxyphenyl)amino]benzaldehyde, 98%|1417249|89115-20-8 https://www.jk-sci.com/products/s57c4x-115339 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/24f0be0421d174211d5f8630743ce68c.jpg?v=1791382788 Obeticholic Acid Impurity 39, Purity: 99.8% | 462122-38-9 Obeticholic Acid Impurity 39|C4X-115339|462122-38-9 https://www.jk-sci.com/products/j5306301 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/48a1327b759e5c13a6ee80c3df6b8ea4.jpg?v=1791416615 Na-Boc-Nb-allyloxycarbonyl-L-2,3-diaminopropionic acid, Assay by titration 98 - 101% || Purity by HPLC ≥ 98% | 161561-83-7 Na-Boc-Nb-allyloxycarbonyl-L-2,3-diaminopropionic acid|06301|161561-83-7 https://www.jk-sci.com/products/j5327633 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f59de3563a2eb09a193e054b26c1ca08.jpg?v=1791401347 3-(Dimethyloctadecylazaniumyl)- propane-1-sulfonate, Purity by HPLC ≥ 98% | 13177-41-8 3-(Dimethyloctadecylazaniumyl)- propane-1-sulfonate|27633|13177-41-8 https://www.jk-sci.com/products/s57c4x-11554 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2ef6bee612d9ccf5b8a8e07fd39d7ffc.jpg?v=1791382746 Sitafloxacin Isomer Impurity 4(RSR), 94.60% | 127199-06-8 Sitafloxacin Isomer Impurity 4(RSR)|C4X-11554|127199-06-8 https://www.jk-sci.com/products/a011424014 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e9dfb60140d0c152cb1af658077d8969.jpg?v=1790216146 (4'-(Pentyloxy)-[1,1'-biphenyl]-4-yl)boronic acid, 95% | 158937-25-8 (4'-(Pentyloxy)-[1,1'-biphenyl]-4-yl)boronic acid, 95%|1424014|158937-25-8 https://www.jk-sci.com/products/s57c4x-115410 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c914695279f465b8a5c82cac13bfe94c.jpg?v=1791382784 Methotrexate EP Impurity J, 90.60% | 34378-65-9 Methotrexate EP Impurity J|C4X-115410|34378-65-9 https://www.jk-sci.com/products/s57c4x-115466 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_53302a66-6abf-4b8b-b037-386c96f466e0.png?v=1791382762 Methotrexate Impurity 66, 91.60% Methotrexate Impurity 66|C4X-115466 https://www.jk-sci.com/products/a011417636 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3eaadff9d2f6b81fbd79613df5e902fe.jpg?v=1788931394 2-Deoxy-2-fluoro-α-D-arabinofuranosylbromide3,5-dibenzoate, 98% | 97614-44-3 2-Deoxy-2-fluoro-α-D-arabinofuranosylbromide3,5-dibenzoate, 98%|1417636|97614-44-3 https://www.jk-sci.com/products/s57c4x-11542 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/514760_3e1c3f9c-1bf8-4112-b72f-bce16a97bd6e.png?v=1791382772 Methotrexate EP Impurity B, 92.40% | 54-62-6 Methotrexate EP Impurity B|C4X-11542|54-62-6 https://www.jk-sci.com/products/j5306778 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4e2a6d3923a1a88ca1569716cd664a8a.jpg?v=1791416242 4-Bromomethyl polystyrene resin, Mesh Size 100 - 200 || Substitution (meq/g) 2.0 - 3.0 mmol/g 4-Bromomethyl polystyrene resin|06778 https://www.jk-sci.com/products/a011417954 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7e6c950cbde34bc8a24c7119254a3ed5.jpg?v=1788931387 2-(4-Bromophenyl)-5-phenylthiophene, 99% | 118621-30-0 2-(4-Bromophenyl)-5-phenylthiophene, 99%|1417954|118621-30-0 https://www.jk-sci.com/products/s57c4x-115417 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/177b19e24b70bff5ff4447cb2d062409.jpg?v=1791382778 Methotrexate Impurity 17 HBr, 86.90% | 52853-40-4 Methotrexate Impurity 17 HBr|C4X-115417|52853-40-4 https://www.jk-sci.com/products/s57c4x-11545 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/255839_157d5c1a-3423-4704-8ab5-8046225681b1.png?v=1791382768 Methotrexate EP Impurity E, 95.10% | 19741-14-1 Methotrexate EP Impurity E|C4X-11545|19741-14-1 https://www.jk-sci.com/products/s57c4x-11562 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/272968_dffa0109-4393-42fc-bc10-471cbe9ac416.png?v=1791382739 Diosmin EP Impurity B, 94.00% | 520-26-3 Diosmin EP Impurity B|C4X-11562|520-26-3 https://www.jk-sci.com/products/a01142838 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/142838.png?v=1790216117 Sulfathiazole, 98% | 72-14-0 Sulfathiazole, 98%|142838|72-14-0 https://www.jk-sci.com/products/a01142971 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/142971.png?v=1790216109 Tetrabutylammonium tetraphenylborate, 98% | 15522-59-5 Tetrabutylammonium tetraphenylborate, 98%|142971|15522-59-5 https://www.jk-sci.com/products/s57c4x-115412 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7d90d3126268999355c20ad8a447ad8e.jpg?v=1791382783 (4-aminobenzoyl)-D-glutamic acid, Purity: 98.1% | 5959-18-2 (4-aminobenzoyl)-D-glutamic acid|C4X-115412|5959-18-2 https://www.jk-sci.com/products/j5307083 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0fa0b65b4567659bad84d2a42a1fcbc5.jpg?v=1791416036 3-(2'-Quinolyl)-L-alanine, Assay by titration ≥ 99% (On dried basis) | 161513-46-8 3-(2'-Quinolyl)-L-alanine|07083|161513-46-8 https://www.jk-sci.com/products/j5306611 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/07f9daad4ec3e6923b29d36f978a568e.jpg?v=1791416348 D-Valine ethyl ester hydrochloride, Purity by HPLC ≥ 99% | 73913-64-1 D-Valine ethyl ester hydrochloride|06611|73913-64-1 https://www.jk-sci.com/products/s57c4x-1155 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_f9224fc6-5f71-4813-9d36-bf0b0812c553.png?v=1791382756 Sitafloxacin hydrate, 98.00% Sitafloxacin hydrate|C4X-1155 https://www.jk-sci.com/products/j5306929 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cdb566355a3f737a593a50ea87d57a34.jpg?v=1791416152 4-Picolyl chloride hydrochloride, Purity by GC ≥ 98% | 1822-51-1 4-Picolyl chloride hydrochloride|06929|1822-51-1 https://www.jk-sci.com/products/j5306399 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/96c53a697897e3038e38a5638d79b66b.jpg?v=1791416498 Na-Z-Nw-(2,2,4,6,7-pentamethyldihydrobenzofuran-5-sulfonyl)-L-arginine cyclohexylammonium salt, Purity by HPLC ≥ 99% | 200190-89-2 Na-Z-Nw-(2,2,4,6,7-pentamethyldihydrobenzofuran-5-sulfonyl)-L-arginine cyclohexylammonium salt|06399|200190-89-2 https://www.jk-sci.com/products/j5306515 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b46c81b15eda27818dacfa8b80f7be6e.jpg?v=1791416412 Z-L-a-aminoadipic acid, Purity by HPLC ≥ 97% | 24325-14-2 Z-L-a-aminoadipic acid|06515|24325-14-2 https://www.jk-sci.com/products/j5307051 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6030d24dd1e96a2687e7953818885d6f.jpg?v=1791416079 Fmoc-4-tert-butyl-D-phenylalanine, Purity by HPLC ≥ 95% | 252049-14-2 Fmoc-4-tert-butyl-D-phenylalanine|07051|252049-14-2 https://www.jk-sci.com/products/s57c4x-11564 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/208687274f94b937a78c5204b29d9cbd.jpg?v=1791382734 Diosmin EP Impurity D, 92.10% | 1431536-92-3 Diosmin EP Impurity D|C4X-11564|1431536-92-3 https://www.jk-sci.com/products/s57c4x-115525 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4b35e896c13784acea28081b8ea032db.jpg?v=1791382750 Sitafloxacin Impurity 25, 92.70% | 2044706-49-0 Sitafloxacin Impurity 25|C4X-115525|2044706-49-0 https://www.jk-sci.com/products/s57c4x-11566 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/102857_ae0c97f5-c6d1-4e30-8f8f-c1c0daa72969.png?v=1791382729 Diosmin Impurity 6, 95.00% | 480-36-4 Diosmin Impurity 6|C4X-11566|480-36-4 https://www.jk-sci.com/products/s57c4x-115710 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8fc139fee10a8d8d15030e482c55fc83.jpg?v=1791382729 Dextromethorphan EP Impurity A, 96.10% | 1531-23-3 Dextromethorphan EP Impurity A|C4X-115710|1531-23-3 https://www.jk-sci.com/products/j5307112 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6fbee6fe8f239bef2cccbfed885d9cff.jpg?v=1791415996 Na-Benzoyl-L-arginine amide hydrochloride, Assay ≥ 95% (Nth 22.32% by Elemental analysis) Calc x 1 HCl || Titration Chlori | 4299-03-0 Na-Benzoyl-L-arginine amide hydrochloride|07112|4299-03-0 https://www.jk-sci.com/products/s57c4x-115721 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4c5bad1f9fb1a0b50e9fb7de70f5fd19.jpg?v=1791382722 Dextromethorphan Impurity 21, 94.20% | 51773-23-0 Dextromethorphan Impurity 21|C4X-115721|51773-23-0 https://www.jk-sci.com/products/s57c4x-11574 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2ffbd981af16b0a895331074b3048548.jpg?v=1791382718 Dextromethorphan EP Impurity D, 97.10% | 1453167-99-1 Dextromethorphan EP Impurity D|C4X-11574|1453167-99-1 https://www.jk-sci.com/products/s57c4x-11576 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/468995.png?v=1791382716 Dextromethorphan EP Impurity B, 97.70% | 125-73-5 Dextromethorphan EP Impurity B|C4X-11576|125-73-5 https://www.jk-sci.com/products/s57c4x-11601 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/239302.png?v=1791382712 Cholic Acid Impurity 1, 88.70% | 1448-36-8 Cholic Acid Impurity 1|C4X-11601|1448-36-8 https://www.jk-sci.com/products/s57c4x-116015 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/111130.png?v=1791382704 Allocholic Acid, 95.70% | 2464-18-8 Allocholic Acid|C4X-116015|2464-18-8 https://www.jk-sci.com/products/s57c4x-116012 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/504877.png?v=1791382704 Cholic Acid Impurity 12, Purity: 98.9% | 570-63-8 Cholic Acid Impurity 12|C4X-116012|570-63-8 https://www.jk-sci.com/products/a011430418 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1430418.png?v=1788931293 Tofacitinib citrate, 99%, an orally available JAK1/2/3 inhibitor with IC50s of 1, 20, and 112 nM, respectively | 540737-29-9 Tofacitinib citrate, 99%, an orally available JAK1/2/3 inhibitor with IC50s of 1, 20, and 112 nM, respectively|1430418|540737-29-9 https://www.jk-sci.com/products/a01143276 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/143276_f828afaf-c8b0-4e88-955e-ed6e2b617ba5.png?v=1790216091 5-Nitrosalicylic acid, 99% | 96-97-9 5-Nitrosalicylic acid, 99%|143276|96-97-9 https://www.jk-sci.com/products/s57c4x-116032 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_5eb19066-55f5-4673-b075-d416023af02d.png?v=1791382682 Deoxycholic acid-L-proline, Purity: 99.5% Deoxycholic acid-L-proline|C4X-116032 https://www.jk-sci.com/products/a01143390 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/143390.png?v=1788001023 N,N-Diisopropylbenzamide, 97% | 20383-28-2 N,N-Diisopropylbenzamide, 97%|143390|20383-28-2 https://www.jk-sci.com/products/s57c4x-116020 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/19737886488808aa0e57b59b5c9142fe.jpg?v=1791382687 Cholic Acid Impurity 20, 97.90% | 24637-46-5 Cholic Acid Impurity 20|C4X-116020|24637-46-5 https://www.jk-sci.com/products/j5307231 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0533fdcd0b41babbb48d4ff10ea78127_cf29e49f-59dc-40db-ae50-a7e92bd1b52e.jpg?v=1791415867 Aminomethyl polystyrene resin, Mesh Size 70-90 mesh || Substitution (meq/g) 1.0-2.0 mmol/g | 89551-24-6 Aminomethyl polystyrene resin|07231|89551-24-6 https://www.jk-sci.com/products/j5307163 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/57cc9f3e97c44767362fbf0d3bc6c748.jpg?v=1791415939 (2S,3S)-3-Amino-2-hydroxy-4-phenylbutyric acid hydrochloride salt, Purity by HPLC ≥ 99% | 62023-62-5 (2S,3S)-3-Amino-2-hydroxy-4-phenylbutyric acid hydrochloride salt|07163|62023-62-5 https://www.jk-sci.com/products/a011434274 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ad25b08b3c3536fc2d3c0272051b8fe6.jpg?v=1788931249 Cobimetinib, 98% | 934660-93-2 Cobimetinib, 98%|1434274|934660-93-2 https://www.jk-sci.com/products/s57c4x-116044 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0a4b99ac1785e7198ee7ad77d5800500.jpg?v=1791382682 Tauroursodeoxycholic acid Impurity 44, 93.10% | 88725-39-7 Tauroursodeoxycholic acid Impurity 44|C4X-116044|88725-39-7 https://www.jk-sci.com/products/j5307256 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4a33e662a7a2f5c2adf6dce1538e1fd0.jpg?v=1791415825 3,5-Difluorobenzyl bromide, Purity by GC ≥ 99% | 141776-91-2 3,5-Difluorobenzyl bromide|07256|141776-91-2 https://www.jk-sci.com/products/s57c4x-1162 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/832079.png?v=1791382658 Febuxostat, 99.70% | 144060-53-7 Febuxostat|C4X-1162|144060-53-7 https://www.jk-sci.com/products/s57c4x-11611 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/350977_56510f23-710a-424e-a137-9ba57c18e05b.png?v=1791382664 Mitiglinide Impurity 1, 100.00% | 3972-36-9 Mitiglinide Impurity 1|C4X-11611|3972-36-9 https://www.jk-sci.com/products/j5307281 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a99e22352ea79a9308574c6691e78f18.jpg?v=1791415803 Fmoc-L-glutamic acid g-tert-butyl ester Merrifield resin, Mesh Size 100 - 200 mesh || Substitution (meq/g) 0.6 - 1.0 meq/g Fmoc-L-glutamic acid g-tert-butyl ester Merrifield resin|07281 https://www.jk-sci.com/products/s57c4x-116210 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2b036d167414f9348fa8db41a79fda45.jpg?v=1791382657 Febuxostat Impurity 10, 96.30% | 1239233-86-3 Febuxostat Impurity 10|C4X-116210|1239233-86-3 https://www.jk-sci.com/products/s57c4x-116214 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/20f23d7a69aeb7a58c684d6dddb12ed0.jpg?v=1791382646 Febuxostat Impurity 14, 96.80% | 1350352-70-3 Febuxostat Impurity 14|C4X-116214|1350352-70-3 https://www.jk-sci.com/products/j5307305 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/63f8d1a27da9690aaa692017455fab5c.jpg?v=1791415788 Boc-allyl-L-glycine dicyclohexylammonium salt, Purity ≥ 98% | 143979-15-1 Boc-allyl-L-glycine dicyclohexylammonium salt|07305|143979-15-1 https://www.jk-sci.com/products/j5307328 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/95aed48a861bebd3d34eb2a5638e399e.jpg?v=1791415739 Boc-L-azetidine-2-carboxylic acid, Chiral HPLC ≥ 99.95% (ee) || Purity by HPLC ≥ 98% | 51077-14-6 Boc-L-azetidine-2-carboxylic acid|07328|51077-14-6 https://www.jk-sci.com/products/j5307351 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/57ade5b77cac2a1f5cdf3f4fe9bbd9c9.jpg?v=1791415692 Boc-tranexamic acid, Purity by HPLC ≥ 97% | 27687-14-5 Boc-tranexamic acid|07351|27687-14-5 https://www.jk-sci.com/products/j5315208 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a4bc1977f986c6417877ce5d77318f5c.jpg?v=1791413229 (S)-3-Amino-3-(4-chlorophenyl)propionic acid, Purity by HPLC ≥ 98% | 131690-60-3 (S)-3-Amino-3-(4-chlorophenyl)propionic acid|15208|131690-60-3 https://www.jk-sci.com/products/s57c4x-107971 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dcf4c2b54cafebfe6b826e41ecd5f8a6.jpg?v=1791385502 Tofacitinib Impurity 71, 98.50% | 134965-85-8 Tofacitinib Impurity 71|C4X-107971|134965-85-8 https://www.jk-sci.com/products/j5307379 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8d5662b6834a4759bb65fa6a88cf609f.jpg?v=1791415651 Boc-3-(4-thiazolyl)-D-alanine, Purity ≥ 98% | 134107-69-0 Boc-3-(4-thiazolyl)-D-alanine|07379|134107-69-0 https://www.jk-sci.com/products/s57c4x-109962 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1e7e9384f550293597ded2a5b7ecbf13.jpg?v=1791384448 Alogliptin Impurity 62, Purity: 100.0% | 607376-86-3 Alogliptin Impurity 62|C4X-109962|607376-86-3 https://www.jk-sci.com/products/j5307374 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/517797f60b7b0f73fdf8a694120cda85.jpg?v=1791415661 1,6-Diaminohexane, Purity by GC ≥ 99% | 124-09-4 1,6-Diaminohexane|07374|124-09-4 https://www.jk-sci.com/products/s57c4x-110815 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5a5433683834f4cc58de86b0108607ee_d496230d-e737-4348-8482-aae5a0b3c281.jpg?v=1791384243 Agomelatine Impurity 15, 99.90% | 138113-08-3 Agomelatine Impurity 15|C4X-110815|138113-08-3 https://www.jk-sci.com/products/s57c4x-111286 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c0e61c9e70e3010c506523b102869351.jpg?v=1791384038 Esomeprazole Impurity 86, 95.30% | 287118-45-0 Esomeprazole Impurity 86|C4X-111286|287118-45-0 https://www.jk-sci.com/products/s57c4x-111818 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d2f18578b4f6fdd948c0c72e65c36501.jpg?v=1791383925 Avanafil Impurity 18, 99.00% | 211230-35-2 Avanafil Impurity 18|C4X-111818|211230-35-2 https://www.jk-sci.com/products/s57c4x-112063 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bdf03a386d468fab30d00668be7e535e.jpg?v=1791383827 Benidipine Impurity 63, Purity: 97.5% | 105589-45-5 Benidipine Impurity 63|C4X-112063|105589-45-5 https://www.jk-sci.com/products/s57c4x-112525 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0a536f0edb20abe11928f800241e114f.jpg?v=1791383712 Palbociclib Impurity 25, 99.90% | 1016636-76-2 Palbociclib Impurity 25|C4X-112525|1016636-76-2 https://www.jk-sci.com/products/a01143531 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5265465237a774720d1733bb1603c9d5.jpg?v=1790216077 Potassium hexachlororhodate(III), Rh≥23.3% | 13845-07-3 Potassium hexachlororhodate(III), Rh≥23.3%|143531|13845-07-3 https://www.jk-sci.com/products/j5307396 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cc16aeaa1eecef4b7ec09659a837288b.jpg?v=1791415626 Boc-3,4,5-trifluoro-L-phenylalanine, Purity by HPLC ≥ 98% | 205445-54-1 Boc-3,4,5-trifluoro-L-phenylalanine|07396|205445-54-1 https://www.jk-sci.com/products/j5307427 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/607432e3b3fbd7be0a23054e9c9dda24.jpg?v=1791415572 2-Methyl-D-phenylalanine, Purity by HPLC ≥ 98% | 80126-54-1 2-Methyl-D-phenylalanine|07427|80126-54-1 https://www.jk-sci.com/products/j5307414 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fe5c619c108b17ab337fcc075557bd22.jpg?v=1791415599 Boc-b-(3-thienyl)-L-alanine dicyclohexylammonium salt, Purity by HPLC ≥ 98% | 83825-42-7 Boc-b-(3-thienyl)-L-alanine dicyclohexylammonium salt|07414|83825-42-7 https://www.jk-sci.com/products/a011436436 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/93f576b17fb7c524ba25c5238a3aacea.jpg?v=1788000992 2-Benzylmalonic acid ethyl ester, 97% | 2985-39-9 2-Benzylmalonic acid ethyl ester, 97%|1436436|2985-39-9 https://www.jk-sci.com/products/a011436352 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e9439c558e2c451f91099197786e99e0.jpg?v=1788931237 1-(2-Amino-5-chlorophenyl)ethanone, 97% | 1685-19-4 1-(2-Amino-5-chlorophenyl)ethanone, 97%|1436352|1685-19-4 https://www.jk-sci.com/products/j5307442 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e88acc952d7e94144d960698b973c71a.jpg?v=1791415544 H-b-(2-Furyl)-L-alanine, Purity ≥ 98% | 127682-08-0 H-b-(2-Furyl)-L-alanine|07442|127682-08-0 https://www.jk-sci.com/products/s57c4x-113028 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_46841709-acd8-461e-89ba-2d721661c1f6.png?v=1791383538 Ilaprazole Impurity 28, 95.70% Ilaprazole Impurity 28|C4X-113028 https://www.jk-sci.com/products/s57c4x-113084 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/433533_33ac809c-b97d-42c8-946d-405ce148b869.png?v=1791383498 Ilaprazole Impurity 84, 99.10% | 6325-91-3 Ilaprazole Impurity 84|C4X-113084|6325-91-3 https://www.jk-sci.com/products/s57c4x-11294 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e285138d2f5221c08b728567128b9416.jpg?v=1791383585 Arbidol Impurity 4, 95.20% | 1130901-04-0 Arbidol Impurity 4|C4X-11294|1130901-04-0 https://www.jk-sci.com/products/s57c4x-113144 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_0578227c-9bc3-46e2-86e0-9bdb2f7ba8f8.png?v=1791383423 Brexpiprazole Impurity 44, 92.20% Brexpiprazole Impurity 44|C4X-113144 https://www.jk-sci.com/products/j5307481 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/521c54d475352d5c00814b25c4d9c027.jpg?v=1791415534 Z-L-glutamic acid g-benzyl ester a-N-hydroxysuccinimide ester, Assay ≥ 90% (Nth ~ 5.98% by elemental analysis) | 67413-34-7 Z-L-glutamic acid g-benzyl ester a-N-hydroxysuccinimide ester|07481|67413-34-7 https://www.jk-sci.com/products/j5307566 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3900be08ab0b21f1c8efa802d99ac78d.jpg?v=1791415525 Z-N-methyl-L-threonine · CHA salt | 253595-72-1 Z-N-methyl-L-threonine · CHA salt|07566|253595-72-1 https://www.jk-sci.com/products/j5307597 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2f970cdc76d5f1707b5865e99b940c7f.jpg?v=1791415520 Z-L-seryl-L-glycine ethyl ester | 4526-93-6 Z-L-seryl-L-glycine ethyl ester|07597|4526-93-6 https://www.jk-sci.com/products/a011440674 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8d79e457ffc583881fec1c6a5ec43f47.jpg?v=1788931202 2-(Dibenzo[b,d]thiophen-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 98% | 912824-84-1 2-(Dibenzo[b,d]thiophen-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 98%|1440674|912824-84-1 https://www.jk-sci.com/products/s57c4x-113215 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2cfd3d677afe09d0ec57611d8d8be235.jpg?v=1791383363 Atorvastatin Impurity 15, 92.20% | 906552-19-0 Atorvastatin Impurity 15|C4X-113215|906552-19-0 https://www.jk-sci.com/products/s57c4x-113221 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/044525983decbedc4819345dba8ac8e6.jpg?v=1791383348 Atorvastatin Impurity 21, 97.30% | 134395-00-9 Atorvastatin Impurity 21|C4X-113221|134395-00-9 https://www.jk-sci.com/products/s57c4x-11329 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c7bd492b63fe68052b4cadba112fa947.jpg?v=1791383301 ortho-Hydroxy Atorvastatin Calcium Salt, 90.80% | 265989-46-6 ortho-Hydroxy Atorvastatin Calcium Salt|C4X-11329|265989-46-6 https://www.jk-sci.com/products/s57c4x-113250 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_a4f42511-ba9d-4477-b6c4-494c8721650f.png?v=1791383332 Atorvastatin EP Impurity G(Sodium Salt), 88.80% Atorvastatin EP Impurity G(Sodium Salt)|C4X-113250 https://www.jk-sci.com/products/s57c4x-11327 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7879d9daf42b3bcb76891ed5630d6b8d.jpg?v=1791383316 Atorvastatin EP Impurity G(Calcium Salt), 92.20% | 887196-29-4 Atorvastatin EP Impurity G(Calcium Salt)|C4X-11327|887196-29-4 https://www.jk-sci.com/products/s57c4x-113422 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f1dbd5180b579deafb7786420fcfe5bb.jpg?v=1791383274 Neratinib Maleate, 96.90% | 915942-22-2 Neratinib Maleate|C4X-113422|915942-22-2 https://www.jk-sci.com/products/s57c4x-113512 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/808d96011293d00e0336b2c59d28c33d.jpg?v=1791383256 Olaparib Impurity 12, 98.60% | 1021298-68-9 Olaparib Impurity 12|C4X-113512|1021298-68-9 https://www.jk-sci.com/products/s57c4x-11352 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5c2cc10e012c42114063dfd66b8081f5.jpg?v=1791383237 Olaparib Impurity 2, 96.50% | 1956340-97-8 Olaparib Impurity 2|C4X-11352|1956340-97-8 https://www.jk-sci.com/products/s57c4x-113539 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/07003d9ae07e0a2047c8c378e73285f5.jpg?v=1791383227 Olaparib Impurity 39, 98.80% | 458535-34-7 Olaparib Impurity 39|C4X-113539|458535-34-7 https://www.jk-sci.com/products/s57c4x-113571 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/517257_e0553ee6-67d9-42f4-8e06-c968e06eebad.png?v=1791383211 Olaparib Impurity 71, Purity: 99.8% | 2592-95-2 Olaparib Impurity 71|C4X-113571|2592-95-2 https://www.jk-sci.com/products/j5307841 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8ea6a3d2202a42d292163850896ff01a.jpg?v=1791415503 Boc-Gly-Lys-Arg-AMC·HCl, Purity by HPLC ≥ 98% | 133448-23-4 Boc-Gly-Lys-Arg-AMC·HCl|07841|133448-23-4 https://www.jk-sci.com/products/j5307938 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4bd0b1aae45fb460ec685719b8be382e.jpg?v=1791415487 Bz-Tyr-4-Abz-OH | 37106-97-1 Bz-Tyr-4-Abz-OH|07938|37106-97-1 https://www.jk-sci.com/products/s57c4x-113725 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_d9faf8c9-6fc7-4d3f-8d3b-ff8c8e17c20f.png?v=1791383196 Decitabine Impurity 25, Purity: 99.4% Decitabine Impurity 25|C4X-113725 https://www.jk-sci.com/products/s57c4x-1138125 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_7e9ff19c-d049-45cf-8022-6908bb39b4a8.png?v=1791383178 Dapagliflozin Impurity 125, 96.60% Dapagliflozin Impurity 125|C4X-1138125 https://www.jk-sci.com/products/s57c4x-113818 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/044b8525ce56b4e583e323b081bdeaed_523227de-166c-4b6e-a9ab-c7d3f692cbe9.jpg?v=1791383162 Dapagliflozin Impurity 18, 99.90% | 461432-22-4 Dapagliflozin Impurity 18|C4X-113818|461432-22-4 https://www.jk-sci.com/products/s57c4x-113824 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/11fe2cbb60c80e785be1a846e24b3f4e.jpg?v=1791383136 Dapagliflozin Impurity 24, 99.40% | 2176485-21-3 Dapagliflozin Impurity 24|C4X-113824|2176485-21-3 https://www.jk-sci.com/products/s57c4x-113849 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2b25ba223590563b2ec21d16f9b12a41.jpg?v=1791383113 Dapagliflozin Impurity 49, 99.50% | 1408077-50-8 Dapagliflozin Impurity 49|C4X-113849|1408077-50-8 https://www.jk-sci.com/products/s57c4x-113882 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9ce6e255841d5b046e79cce8144594f8.jpg?v=1791383099 Dapagliflozin Impurity 82, Purity: 90.0% | 461432-27-9 Dapagliflozin Impurity 82|C4X-113882|461432-27-9 https://www.jk-sci.com/products/s57c4x-113924 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7bf44a672c5cce3fd473dc4e9a3d0426.jpg?v=1791383081 Cefixime Impurity 24, 90.30% | 79368-92-6 Cefixime Impurity 24|C4X-113924|79368-92-6 https://www.jk-sci.com/products/s57c4x-11396 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/82a77cb06350fe16177e2faeede3fef1.jpg?v=1791383064 Cefixime EP Impurity D, 95.80% | 97164-56-2 Cefixime EP Impurity D|C4X-11396|97164-56-2 https://www.jk-sci.com/products/s57c4x-1140142 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5d789d1c34e5893a1e541bb842f5d9f7.jpg?v=1791383036 Lenvatinib Impurity 142, Purity: 98.0% | 1069122-99-1 Lenvatinib Impurity 142|C4X-1140142|1069122-99-1 https://www.jk-sci.com/products/s57c4x-114035 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bf64aed4d3ab42532fcb07d3f4e11aa0.jpg?v=1791383023 Lenvatinib Impurity 35, 90.70% | 771464-30-3 Lenvatinib Impurity 35|C4X-114035|771464-30-3 https://www.jk-sci.com/products/s57c4x-11409 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_7ceb2b57-50b2-4c9c-8383-ea0bc241c5a5.png?v=1791383010 Lenvatinib Impurity 9, 96.30% Lenvatinib Impurity 9|C4X-11409 https://www.jk-sci.com/products/s57c4x-114124 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9eea0de3388cc9215877814f2fe37e71.jpg?v=1791382995 Aprepitant Impurity 24, Purity: 98.9% | 327623-36-9 Aprepitant Impurity 24|C4X-114124|327623-36-9 https://www.jk-sci.com/products/s57c4x-114135 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/215290_e7f21bad-b702-45d9-bbc1-abad44366519.png?v=1791382990 Aprepitant Impurity 35, 98.40% | 74974-54-2 Aprepitant Impurity 35|C4X-114135|74974-54-2 https://www.jk-sci.com/products/s57c4x-114165 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_e429469d-c0ce-44f7-a8c8-6b1f1340841a.png?v=1791382977 Aprepitant impurity 65, 93.40% Aprepitant impurity 65|C4X-114165 https://www.jk-sci.com/products/s57c4x-1144100 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_79775b72-3206-4a96-942a-7f01a48f146c.png?v=1791382966 Sitagliptin Impurity 100, 99.40% Sitagliptin Impurity 100|C4X-1144100 https://www.jk-sci.com/products/s57c4x-1144125 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/19b3d0ac119c7b2da6935acf9d1b275e.jpg?v=1791382959 Sitagliptin Impurity 125, 97.60% | 877402-45-4 Sitagliptin Impurity 125|C4X-1144125|877402-45-4 https://www.jk-sci.com/products/s57c4x-114421 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a701715a97510b817e5768ffd88f044b.jpg?v=1791382947 Sitagliptin Impurity 21, 92.60% | 2088771-60-0 Sitagliptin Impurity 21|C4X-114421|2088771-60-0 https://www.jk-sci.com/products/s57c4x-114461 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0debdef5a7ae8c16f06b04f8390bf6cb.jpg?v=1791382920 Sitagliptin Impurity 61, 64.80% | 1256815-03-8 Sitagliptin Impurity 61|C4X-114461|1256815-03-8 https://www.jk-sci.com/products/s57c4x-114429 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/881eeec75a6783292e48e4a99a8d74f6.jpg?v=1791382937 Sitagliptin impurity 29, 94.60% | 2088771-61-1 Sitagliptin impurity 29|C4X-114429|2088771-61-1 https://www.jk-sci.com/products/s57c4x-114439 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a988484bff589716508ea6cc3fd65a80.jpg?v=1791382931 Sitagliptin Impurity 39, 99.70% | 1374985-05-3 Sitagliptin Impurity 39|C4X-114439|1374985-05-3 https://www.jk-sci.com/products/s57c4x-114473 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9c6486daf107962773a0b828272ea713.jpg?v=1791382909 Sitagliptin Impurity 73, 97.90% | 1253056-18-6 Sitagliptin Impurity 73|C4X-114473|1253056-18-6 https://www.jk-sci.com/products/s57c4x-1146 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/358309_f5d3bbd4-9f22-49c0-803f-7cbc1ce63d67.png?v=1791382890 Potassium Clavulanate, 47.70% | 61177-45-5 Potassium Clavulanate|C4X-1146|61177-45-5 https://www.jk-sci.com/products/s57c4x-114615 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e41c5122bf640935718de3b92de64869.jpg?v=1791382881 Potassium Clavulanate EP Impurity F, 94.10% | 1260857-16-6 Potassium Clavulanate EP Impurity F|C4X-114615|1260857-16-6 https://www.jk-sci.com/products/s57c4x-11448 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ba424b5a715480f68f70a8056ba5e9ba.jpg?v=1791382900 Sitagliptin Impurity 8, 94.00% | 1204818-19-8 Sitagliptin Impurity 8|C4X-11448|1204818-19-8 https://www.jk-sci.com/products/s57c4x-11468 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e4b0f912e2713d6adc893f298c0a3326.jpg?v=1791382872 Clavulanate Potassium EP Impurity B, 90.50% | 96681-85-5 Clavulanate Potassium EP Impurity B|C4X-11468|96681-85-5 https://www.jk-sci.com/products/s57c4x-114812 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e3d82df850f7981b912c37b6fc827398.jpg?v=1791382867 Amoxicillin related compound L, 91.60% | 1789703-32-7 Amoxicillin related compound L|C4X-114812|1789703-32-7 https://www.jk-sci.com/products/s57c4x-11483 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b61b1f0756f6f5596f58e611764f1874.jpg?v=1791382855 Amoxicillin EP impurity B, 92.90% | 26889-93-0 Amoxicillin EP impurity B|C4X-11483|26889-93-0 https://www.jk-sci.com/products/s57c4x-11485 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/30af324993f0330452aba9e937501676.jpg?v=1791382840 Amoxicillin EP Impurity F, 94.30% | 126247-63-0 Amoxicillin EP Impurity F|C4X-11485|126247-63-0 https://www.jk-sci.com/products/s57c4x-11487 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a881c8d14d6baacac27735e791e5ea67.jpg?v=1791382835 Amoxicillin EP Impurity G, 92.40% | 188112-75-6 Amoxicillin EP Impurity G|C4X-11487|188112-75-6 https://www.jk-sci.com/products/a011443417 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3aad15ebfc485686bcce876a2994f11c.jpg?v=1790216054 4-Bromo-9,9-dimethylfluorene, 98% | 942615-32-9 4-Bromo-9,9-dimethylfluorene, 98%|1443417|942615-32-9 https://www.jk-sci.com/products/j5308002 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bd3283ec1641aa7520ad4cbe9bff3266.jpg?v=1791415481 Cyclo(L-His-L-Pro), Purity by HPLC ≥ 98% | 53109-32-3 Cyclo(L-His-L-Pro)|08002|53109-32-3 https://www.jk-sci.com/products/j5308081 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4a574eb984e016b4ed95796900f69bed.jpg?v=1791415459 Fmoc-Phe-Gly-OH, Purity by HPLC ≥ 98% | 169624-67-3 Fmoc-Phe-Gly-OH|08081|169624-67-3 https://www.jk-sci.com/products/j5308086 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/85ba03b82157209282efd5127d9e1a50.jpg?v=1791415453 Fmoc-O-b-(2-acetamido-2-deoxy-3,4,6-tri-O-acetyl-a-D-galactopyranosyl)-L-threonine, Purity by HPLC ≥ 97% | 116783-35-8 Fmoc-O-b-(2-acetamido-2-deoxy-3,4,6-tri-O-acetyl-a-D-galactopyranosyl)-L-threonine|08086|116783-35-8 https://www.jk-sci.com/products/j5308337 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0b98c7e2995ddab35de8d0da6ae2f279.jpg?v=1791415418 H-Arg-Arg-bNA·3HCl, Titration ≤ 19% (Chloride content by AgNO3) | 100900-26-3 H-Arg-Arg-bNA·3HCl|08337|100900-26-3 https://www.jk-sci.com/products/j5308169 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c6bce5d3d62a8ad2f452570ec4bb9cd7.jpg?v=1791415432 Glutathione-monoisopropyl ester (reduced), Assay ≥ 96% (based on N-content) || Purity by HPLC ≥ 94% | 97451-46-2 Glutathione-monoisopropyl ester (reduced)|08169|97451-46-2 https://www.jk-sci.com/products/j5308455 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0d2304163d99475c97151bcb4cb8c5a8.jpg?v=1791415409 DL-Leucine amide hydrochloride, Purity by HPLC ≥ 98% | 10466-60-1 DL-Leucine amide hydrochloride|08455|10466-60-1 https://www.jk-sci.com/products/j5308458 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/01ba06ece2cb4ba7b122c026357c4f78.jpg?v=1791415404 DL-methionine methyl ester hydrochloride, Purity by HPLC ≥ 98% | 16118-36-8 DL-methionine methyl ester hydrochloride|08458|16118-36-8 https://www.jk-sci.com/products/j5308463 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f46e8e3c7d3defd3fd6d48271b14eb78.jpg?v=1791415400 DL-Phenylalanine methyl ester hydrochloride, Purity by HPLC ≥ 99% | 5619-07-8 DL-Phenylalanine methyl ester hydrochloride|08463|5619-07-8 https://www.jk-sci.com/products/j5308467 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5f33109a1675e2241bb008e8170617f1.jpg?v=1791415394 DL-tryptophan amide hydrochloride | 67607-61-8 DL-tryptophan amide hydrochloride|08467|67607-61-8 https://www.jk-sci.com/products/j5308469 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8bd52b9090e343b9c2f28d2a5bf3d5f3.jpg?v=1791415386 DL-Tryptophan methyl ester hydrochloride, Purity by HPLC ≥ 98% | 5619-09-0 DL-Tryptophan methyl ester hydrochloride|08469|5619-09-0 https://www.jk-sci.com/products/j5308474 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/752c4685c8d84a6a6b0906cf31287d84.jpg?v=1791415377 D-Norvaline benzyl ester 4-toluenesulfonate salt, Purity by HPLC ≥ 98% | 218962-76-6 D-Norvaline benzyl ester 4-toluenesulfonate salt|08474|218962-76-6 https://www.jk-sci.com/products/s57c4x-114920 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_1dacb399-304a-434d-a309-11489b8de0de.png?v=1791382819 Cefoperazone Ring Opening Lactone, 91.00% Cefoperazone Ring Opening Lactone|C4X-114920 https://www.jk-sci.com/products/s57c4x-11494 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/458224_241998c8-752c-487b-8a30-fb2babdee06e.png?v=1791382807 Cefoperazone EP Impurity D, 91.40% | 37539-03-0 Cefoperazone EP Impurity D|C4X-11494|37539-03-0 https://www.jk-sci.com/products/s57c4x-115330 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9c20d6959ed7e785618600ae801f5d45.jpg?v=1791382792 (E)-Obeticholic Acid Impurity 30, Purity: 97.9% | 1516887-33-4 (E)-Obeticholic Acid Impurity 30|C4X-115330|1516887-33-4 https://www.jk-sci.com/products/s57c4x-115223 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4964975385916c2dad9c369d95fb05d9.jpg?v=1791382798 Adefovir Impurity 23, 94.40% | 1215101-42-0 Adefovir Impurity 23|C4X-115223|1215101-42-0 https://www.jk-sci.com/products/j5308499 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9db5f29450ef0c04afc926e418b52d7f.jpg?v=1791415373 Nd-Isopropyl-L-glutamine, Assay by titration ≥ 100% (TBAH) | 4311-12-0 Nd-Isopropyl-L-glutamine|08499|4311-12-0 https://www.jk-sci.com/products/j5308559 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d134305416edea047105288d53d74ef5.jpg?v=1791415368 Gly-Asp-OH, Purity by HPLC ≥ 97% | 4685-12-5 Gly-Asp-OH|08559|4685-12-5 https://www.jk-sci.com/products/s57c4x-115411 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/220077_6b63b724-45af-46d1-b7c5-7d3beae68fe7.png?v=1791382783 Methotrexate EP Impurity K(Folic Acid EP Impurity A), 99.40% | 4271-30-1 Methotrexate EP Impurity K(Folic Acid EP Impurity A)|C4X-115411|4271-30-1 https://www.jk-sci.com/products/s57c4x-115419 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2c5d7e2f1d87d4b1be396e2b994148e1.jpg?v=1791382775 Methotrexate EP Impurity L, 98.20% | 52980-68-4 Methotrexate EP Impurity L|C4X-115419|52980-68-4 https://www.jk-sci.com/products/s57c4x-11546 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/429449_3d2b8656-b852-4468-949a-29ccc0cca8d2.png?v=1791382768 Methotrexate EP Impurity F, 92.10% | 51865-79-3 Methotrexate EP Impurity F|C4X-11546|51865-79-3 https://www.jk-sci.com/products/s57c4x-11565 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/465944_76a9b0ed-5d73-42e4-ba6c-215c19de0a8a.png?v=1791382733 Diosmin EP Impurity F, 98.60% | 520-34-3 Diosmin EP Impurity F|C4X-11565|520-34-3 https://www.jk-sci.com/products/s57c4x-11561 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/537880_49efdb4e-11e0-41de-a643-5ffaa8ed38f6.png?v=1791382744 Diosmin EP Impurity A, 98.40% | 6100-74-9 Diosmin EP Impurity A|C4X-11561|6100-74-9 https://www.jk-sci.com/products/s57c4x-115524 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_3468bada-2f8a-438a-bce8-20eccc5dca60.png?v=1791382752 Sitafloxacin Dechloro Impurity, 97.20% Sitafloxacin Dechloro Impurity|C4X-115524 https://www.jk-sci.com/products/s57c4x-115714 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3bc81fb2c21e22395acbb92500b76d6c.jpg?v=1791382725 Dextromethorphan Impurity 14 (Mixture of Rotamers), Purity: 98.5% | 29144-31-8 Dextromethorphan Impurity 14 (Mixture of Rotamers)|C4X-115714|29144-31-8 https://www.jk-sci.com/products/s57c4x-11575 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/82da01929207a2e03736604ea349622c.jpg?v=1791382717 Dextromethorphan N-Oxide, 96.00% | 1177494-18-6 Dextromethorphan N-Oxide|C4X-11575|1177494-18-6 https://www.jk-sci.com/products/j5308667 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cca52426581168897aaaf6763c7b11de.jpg?v=1791415339 Gly-Phe-Gly-OH, Assay ≥ 97% | 14656-09-8 Gly-Phe-Gly-OH|08667|14656-09-8 https://www.jk-sci.com/products/s57c4x-116010 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ffe1d4173b1f8ff85ba5b186ab40c79a.jpg?v=1791382712 Cholic acid Impurity 10, Purity: 100.0% | 570-62-7 Cholic acid Impurity 10|C4X-116010|570-62-7 https://www.jk-sci.com/products/s57c4x-116019 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/64831827c97e1b9b6f08d35042f0fa46.jpg?v=1791382693 Cholic Acid Impurity 19, 95.30% | 2304-89-4 Cholic Acid Impurity 19|C4X-116019|2304-89-4 https://www.jk-sci.com/products/s57c4x-116037 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ab94e00457bb108ef3d1c6e9c22cc58e.jpg?v=1791382677 3-keto-tauroursodeoxycholic acid, 99.60% | 129944-51-0 3-keto-tauroursodeoxycholic acid|C4X-116037|129944-51-0 https://www.jk-sci.com/products/s57c4x-116213 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6966721acc7a58a040070f670883b97e.jpg?v=1791382652 Febuxostat Impurity 13, 100.00% | 160844-75-7 Febuxostat Impurity 13|C4X-116213|160844-75-7 https://www.jk-sci.com/products/s57c4x-116122 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_8e9fc03e-d5c6-427f-b6f3-ca378c16fe3f.png?v=1791382664 Mitiglinide impurity 22, 97.30% Mitiglinide impurity 22|C4X-116122 https://www.jk-sci.com/products/s57c4x-116224 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2733ee5e74e0cd3ec096341efb2a8d77.jpg?v=1791382642 Febuxostat Impurity 24, 98.80% | 1335202-59-9 Febuxostat Impurity 24|C4X-116224|1335202-59-9 https://www.jk-sci.com/products/s57c4x-116228 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/50dd91bc06ede33fab50272d267e6c52.jpg?v=1791382640 Febuxostat Impurity 28, 96.80% | 161798-02-3 Febuxostat Impurity 28|C4X-116228|161798-02-3 https://www.jk-sci.com/products/s57c4x-116234 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1c12e9a462921ffdb27965d887d5301b_5f208385-99ee-45a0-893f-0e9d60969dd6.jpg?v=1791382633 Febuxostat Impurity 34, 98.50% | 18962-07-7 Febuxostat Impurity 34|C4X-116234|18962-07-7 https://www.jk-sci.com/products/s57c4x-116248 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2822aae24bd1b52bd9c3530f8626e782.jpg?v=1791382628 Febuxostat Impurity 48, 92.80% | 144060-52-6 Febuxostat Impurity 48|C4X-116248|144060-52-6 https://www.jk-sci.com/products/s57c4x-116257 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_aa0db3d2-1a56-4dff-b0b8-b6555c493ab8.png?v=1791382625 Febuxostat Impurity 57, 98.70% Febuxostat Impurity 57|C4X-116257 https://www.jk-sci.com/products/s57c4x-116250 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/485933.png?v=1791382626 Febuxostat Impurity 50, 90.10% | 609-15-4 Febuxostat Impurity 50|C4X-116250|609-15-4 https://www.jk-sci.com/products/s57c4x-116259 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/04bbb9cf57630493d2e69975199893f0.jpg?v=1791382619 Febuxostat Impurity 59, Purity: 98.4% | 2073891-59-3 Febuxostat Impurity 59|C4X-116259|2073891-59-3 https://www.jk-sci.com/products/s57c4x-116262 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/75d57736142016711e97e1e3e454ce1f.jpg?v=1791382615 Febuxostat Impurity 62, 93.20% | 2476465-11-7 Febuxostat Impurity 62|C4X-116262|2476465-11-7 https://www.jk-sci.com/products/s57c4x-116270 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/32ad3008615ab97a3185808668433dd4.jpg?v=1791382611 Febuxostat Impurity 70, 99.10% | 1657014-33-9 Febuxostat Impurity 70|C4X-116270|1657014-33-9 https://www.jk-sci.com/products/s57c4x-116275 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/090cdc0ab8b562490212d496d7e4b04e_f1d88dd8-0d23-4fbf-92d4-4cc169992dee.jpg?v=1791382607 Febuxostat Impurity 75, Purity: 99.8% | 138330-01-5 Febuxostat Impurity 75|C4X-116275|138330-01-5 https://www.jk-sci.com/products/s57c4x-116282 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/234966.png?v=1791382605 2-Ethoxybenzonitrile, 98.50% | 6609-57-0 2-Ethoxybenzonitrile|C4X-116282|6609-57-0 https://www.jk-sci.com/products/s57c4x-116288 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f83e03b59d1efb4828a29936e8cbc127.jpg?v=1791382601 Febuxostat Impurity 88, Purity: 99.2% | 144060-84-4 Febuxostat Impurity 88|C4X-116288|144060-84-4 https://www.jk-sci.com/products/s57c4x-1163 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/426099.png?v=1791382598 Ceftriaxone Disodium Salt Hemiheptahydrate, Purity: 96.0% | 104376-79-6 Ceftriaxone Disodium Salt Hemiheptahydrate|C4X-1163|104376-79-6 https://www.jk-sci.com/products/s57c4x-11632 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/312c74abbc2e9d436b8719a905ab4be5.jpg?v=1791382587 Ceftriaxone Sodium EP Impurity B(Cefotaxime EP Impurity E)（Cefodizime Impurity D）, 86.10% | 66340-33-8 Ceftriaxone Sodium EP Impurity B(Cefotaxime EP Impurity E)（Cefodizime Impurity D）|C4X-11632|66340-33-8 https://www.jk-sci.com/products/s57c4x-116314 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_4baa59bd-f188-4b26-8ee0-fed64e21f021.png?v=1791382591 Δ3-Ceftriaxone Isomer Impurity, 92.00% Δ3-Ceftriaxone Isomer Impurity|C4X-116314 https://www.jk-sci.com/products/s57c4x-11634 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/41f0ed3a3e62138ed03518526b47bae2_1411eb88-0cca-46bc-92a1-fa7f07ba6e09.jpg?v=1791382573 Ceftriaxone Sodium EP Impurity D, 93.40% | 80756-85-0 Ceftriaxone Sodium EP Impurity D|C4X-11634|80756-85-0 https://www.jk-sci.com/products/s57c4x-116338 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/243973.png?v=1791382580 Ceftriaxone Impurity 38, 99.90% | 6938-68-7 Ceftriaxone Impurity 38|C4X-116338|6938-68-7 https://www.jk-sci.com/products/s57c4x-11633 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/149729_811f6636-6507-4871-bcc9-549a181c4180.png?v=1791382582 Ceftriaxone Sodium EP Impurity C, 96.50% | 58909-39-0 Ceftriaxone Sodium EP Impurity C|C4X-11633|58909-39-0 https://www.jk-sci.com/products/s57c4x-116426 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9038391e14b90d5bdaeda125149c4329.jpg?v=1791382542 Oxcarbazepine Impurity 26, 99.30% | 33948-19-5 Oxcarbazepine Impurity 26|C4X-116426|33948-19-5 https://www.jk-sci.com/products/s57c4x-116418 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5224452f1a14b42dde201bd52caf3840.jpg?v=1791382550 Oxcarbazepine Impurity 18, Purity: 96.0% | 1346601-76-0 Oxcarbazepine Impurity 18|C4X-116418|1346601-76-0 https://www.jk-sci.com/products/s57c4x-11636 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_dc63e27f-c1a1-404e-82b0-dfa3834a7c84.png?v=1791382567 Ceftriaxone 3-ene Isomer Disodium Salt, 86.70% Ceftriaxone 3-ene Isomer Disodium Salt|C4X-11636 https://www.jk-sci.com/products/s57c4x-116413 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/33aba225dc195e2173d49e2d955d549e.jpg?v=1791382556 Oxcarbazepine Impurity 13, 98.30% | 59690-97-0 Oxcarbazepine Impurity 13|C4X-116413|59690-97-0 https://www.jk-sci.com/products/s57c4x-116415 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8a1067740e1be46b762974499cd14f39.jpg?v=1791382559 Oxcarbazepine EP Impurity I, 91.20% | 537693-29-1 Oxcarbazepine EP Impurity I|C4X-116415|537693-29-1 https://www.jk-sci.com/products/s57c4x-116410 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/134331.png?v=1791382568 Oxcarbazepine Impurity 10, 99.70% | 256-96-2 Oxcarbazepine Impurity 10|C4X-116410|256-96-2 https://www.jk-sci.com/products/j5308821 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0dacc9b7149a30f075934b5010f5e50a.jpg?v=1791415320 L-Leucine amide, Assay ≥ 98% | 687-51-4 L-Leucine amide|08821|687-51-4 https://www.jk-sci.com/products/s57c4x-11643 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/213960_99a9bd0f-6e9e-406a-8491-b23a69910469.png?v=1791382532 Oxcarbazepine Impurity 3, 99.00% | 3564-73-6 Oxcarbazepine Impurity 3|C4X-11643|3564-73-6 https://www.jk-sci.com/products/s57c4x-116440 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d008bb297f238c1f9a9e21dfabed7b94.jpg?v=1791382530 Oxcarbazepine Impurity 40, 97.50% | 186694-45-1 Oxcarbazepine Impurity 40|C4X-116440|186694-45-1 https://www.jk-sci.com/products/s57c4x-116428 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6caf8133a1c55a110bc45bdfa057a20a.jpg?v=1791382545 Oxcarbazepine Impurity 28, 98.70% | 186694-22-4 Oxcarbazepine Impurity 28|C4X-116428|186694-22-4 https://www.jk-sci.com/products/s57c4x-11646 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7b3ea6cd8735f074e4b45bf86e3e53c2.jpg?v=1791382525 Oxcarbazepine EP Impurity D, 97.60% | 19579-83-0 Oxcarbazepine EP Impurity D|C4X-11646|19579-83-0 https://www.jk-sci.com/products/s57c4x-11649 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/340789_09625055-f408-46e3-9647-d1958b1708d4.png?v=1791382523 Oxcarbazepine Impurity 9, 99.00% | 611-64-3 Oxcarbazepine Impurity 9|C4X-11649|611-64-3 https://www.jk-sci.com/products/s57c4x-116511 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bca5c3673e50f0fc7199d35ff0c29fb1.jpg?v=1791382513 Dexamethasone EP Impurity K, 91.40% | 1809224-82-5 Dexamethasone EP Impurity K|C4X-116511|1809224-82-5 https://www.jk-sci.com/products/s57c4x-11651 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_d809c9ca-4158-4575-99e7-bb4e87e92ea6.png?v=1791382517 Dexamethasone EP Impurity A, 80.80% Dexamethasone EP Impurity A|C4X-11651 https://www.jk-sci.com/products/s57c4x-116514 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a7c9f836fd2a12a24ca297d3fc3c67e4.jpg?v=1791382513 Dexamethasone Acetate EP Impurity E, Purity: 96.3% | 1524-94-3 Dexamethasone Acetate EP Impurity E|C4X-116514|1524-94-3 https://www.jk-sci.com/products/s57c4x-116525 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/622219.png?v=1791382497 Dexamethasone Impurity 25, 99.00% | 1880-61-1 Dexamethasone Impurity 25|C4X-116525|1880-61-1 https://www.jk-sci.com/products/s57c4x-116527 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3abb399bfb7949e8c8ef117b3ea01c91.jpg?v=1791382493 Dexamethasone Sodium Phosphate EP Impurity H, 94.30% | 162968-22-1 Dexamethasone Sodium Phosphate EP Impurity H|C4X-116527|162968-22-1 https://www.jk-sci.com/products/s57c4x-116521 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/78fcaec7d7573024998732588ec4757b.jpg?v=1791382502 Dexamethasone sodium phosphate EP Impurity G, 100.00% | 37927-01-8 Dexamethasone sodium phosphate EP Impurity G|C4X-116521|37927-01-8 https://www.jk-sci.com/products/s57c4x-116529 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_292a2aac-2dc2-46de-b11d-9aac1a71c99f.png?v=1791382492 Dexamethasone Sodium Phosphate EP Impurity E, 90.20% Dexamethasone Sodium Phosphate EP Impurity E|C4X-116529 https://www.jk-sci.com/products/s57c4x-116556 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_867deb5b-7aaa-472b-87a3-a732498a4382.png?v=1791382463 Dexamethasone Phosphate Diester, 95.00% Dexamethasone Phosphate Diester|C4X-116556 https://www.jk-sci.com/products/s57c4x-116533 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dead392227ae1e8ca599ef80eb19565d.jpg?v=1791382481 Dexamethasone Impurity 33, Purity: 92.8% | 75262-69-0 Dexamethasone Impurity 33|C4X-116533|75262-69-0 https://www.jk-sci.com/products/s57c4x-116530 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_1721fda3-2866-4f1d-8495-89b61fbae995.png?v=1791382485 Dexamethasone Sodium Phosphate EP Impurity F, 92.00% Dexamethasone Sodium Phosphate EP Impurity F|C4X-116530 https://www.jk-sci.com/products/j5309019 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/407ecedadd0478a61bc45cc713838b31.jpg?v=1791415289 Phe-Leu-NH2·HCl | 81638-86-0 Phe-Leu-NH2·HCl|09019|81638-86-0 https://www.jk-sci.com/products/j5308994 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cb353d370064dc5c8e4aac312ab1ee33.jpg?v=1791415294 Phe-Arg-bNA·2HCl, Assay ≥ 85% (Elemental analysis) || Titration Chloride content: ≥ 13% (AgNO3) | 100929-99-5 Phe-Arg-bNA·2HCl|08994|100929-99-5 https://www.jk-sci.com/products/s57c4x-116535 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/278779.png?v=1791382477 Dexamethasone Isonicotinate, Purity: 99.3% | 2265-64-7 Dexamethasone Isonicotinate|C4X-116535|2265-64-7 https://www.jk-sci.com/products/s57c4x-11655 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1b2e7c30b568b890d2beaf066ae434d1.jpg?v=1791382467 Dexamethasone EP Impurity E, 98.70% | 13209-41-1 Dexamethasone EP Impurity E|C4X-11655|13209-41-1 https://www.jk-sci.com/products/a011443747 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ab73a38ce9a7371a4e67f8c67c4d642c.jpg?v=1788000923 Diphenylacetic anhydride, 98% | 1760-46-9 Diphenylacetic anhydride, 98%|1443747|1760-46-9 https://www.jk-sci.com/products/s57c4x-116560 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_09c3d17e-2109-4303-8057-b1a5d6d095fc.png?v=1791382458 21-Dehydro Dexamethasone, 95.10% 21-Dehydro Dexamethasone|C4X-116560 https://www.jk-sci.com/products/s57c4x-116542 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2222db9966945ad3b38e6b031ed744ca.jpg?v=1791382472 Dexamethasone Acetate EP Impurity G, 99.90% | 1597-78-0 Dexamethasone Acetate EP Impurity G|C4X-116542|1597-78-0 https://www.jk-sci.com/products/j5309054 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/40cd8188325164ea5c9edf7cb08c4ad3.jpg?v=1791415285 Pro-Gly-OH, Purity by HPLC ≥ 95% | 2578-57-6 Pro-Gly-OH|09054|2578-57-6 https://www.jk-sci.com/products/s57c4x-116565 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/42d1173d90e296425065b3d214c711a3.jpg?v=1791382455 Dexamethasone impurity 65, 90.10% | 1202002-01-4 Dexamethasone impurity 65|C4X-116565|1202002-01-4 https://www.jk-sci.com/products/j5309378 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6e3971c8524933ae2331a5f8f75db33f.jpg?v=1791415256 Isovaleryl-Phe-Nle-Sta-Ala-Sta-OH, Purity ≥ 98% | 98092-14-9 Isovaleryl-Phe-Nle-Sta-Ala-Sta-OH|09378|98092-14-9 https://www.jk-sci.com/products/j5309092 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b54f0ede0b61d7834f89bb07f3551b54.jpg?v=1791415280 Pro-Tyr-OH, Assay ? 99% | 19786-36-8 Pro-Tyr-OH|09092|19786-36-8 https://www.jk-sci.com/products/s57c4x-11658 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/05279f6f26690dca252498775c1c07cb.jpg?v=1791382454 Dexamethasone EP Impurity H, 99.20% | 10106-41-9 Dexamethasone EP Impurity H|C4X-11658|10106-41-9 https://www.jk-sci.com/products/j5307288 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d7c655dc35a1ac2c3502a0f1b9a9a241.jpg?v=1791415798 Boc-3,4-Dimethoxy-D-phenylalanine, Chiral HPLC ≥ 98.0% || Purity by HPLC ≥ 97.0% | 218457-71-7 Boc-3,4-Dimethoxy-D-phenylalanine|07288|218457-71-7 https://www.jk-sci.com/products/s57c4x-11661 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/233555.png?v=1791382449 Sodium Valproate EP Impurity F, 98.70% | 2430-27-5 Sodium Valproate EP Impurity F|C4X-11661|2430-27-5 https://www.jk-sci.com/products/j5309524 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3978102aba32f9bba50b04fa63aecaab.jpg?v=1791415241 5-(Aminomethyl)-3(2H)-isoxazolone, Assay ≥ 93% (Nth 24.55% by elemental analysis) | 2763-96-4 5-(Aminomethyl)-3(2H)-isoxazolone|09524|2763-96-4 https://www.jk-sci.com/products/j5309611 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7e067f3534d3bd59f8bed611797b6d65.jpg?v=1791415234 N-Methyl-DL-phenylglycine, Purity by HPLC ≥ 98% | 74641-60-4 N-Methyl-DL-phenylglycine|09611|74641-60-4 https://www.jk-sci.com/products/j5309663 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4831e46e5683fa2fa4c213d31a164239.jpg?v=1791415214 Oxythiamine·HCl, Assay ≥ 96% (Nth : 12.42%, Elemental Analysis) || Titration ~ 20% (chloride cont | 136-16-3 Oxythiamine·HCl|09663|136-16-3 https://www.jk-sci.com/products/s57c4x-116621 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0d1be0adb60547280a77eeed1a3dbaff.jpg?v=1791382437 Valproic Acid EP Impurity J, 90.50% | 5340-48-7 Valproic Acid EP Impurity J|C4X-116621|5340-48-7 https://www.jk-sci.com/products/s57c4x-116619 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/304236_5f31572c-9e3b-44f6-ae58-1df3f1f92450.png?v=1791382444 Sodium Valproate Impurity 19, 94.50% | 616-62-6 Sodium Valproate Impurity 19|C4X-116619|616-62-6 https://www.jk-sci.com/products/s57c4x-116627 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/513488.png?v=1791382433 Sodium Valproate Impurity 27, 95.80% | 1575-72-0 Sodium Valproate Impurity 27|C4X-116627|1575-72-0 https://www.jk-sci.com/products/j5309619 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8c93dd7edc86c979c4680df06ed936a7.jpg?v=1791415224 N-Methyl-L-valine benzyl ester 4-toluenesulfonate salt | 42492-62-6 N-Methyl-L-valine benzyl ester 4-toluenesulfonate salt|09619|42492-62-6 https://www.jk-sci.com/products/s57c4x-116612 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/283229.png?v=1791382442 Sodium Valproate EP Impurity K, 97.10% | 5343-52-2 Sodium Valproate EP Impurity K|C4X-116612|5343-52-2 https://www.jk-sci.com/products/s57c4x-116635 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8fa4aa5fc72ca8ed62bafdb44d232af5.jpg?v=1791382424 Sodium Valproate Impurity 35, Purity: 100.0% | 6137-09-3 Sodium Valproate Impurity 35|C4X-116635|6137-09-3 https://www.jk-sci.com/products/s57c4x-116633 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/55a2f3d0a90cab440a8da4eed8acebd6.jpg?v=1791382430 Valproic Acid Methyl Ester, 99.50% | 22632-59-3 Valproic Acid Methyl Ester|C4X-116633|22632-59-3 https://www.jk-sci.com/products/q8893-7820 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6df4344191613f79b1c1908b824f2e75.jpg?v=1788898788 cis-Dichlorobis(triethylphosphine)platinum(II), 99% | 15692-07-6 cis-Dichlorobis(triethylphosphine)platinum(II), 99%|93-7820|15692-07-6 https://www.jk-sci.com/products/j5305985 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/011bf782a5435315b1cb766bebbf2a8a.jpg?v=1791416934 Ne-Acetyl-D-lysine, Purity by HPLC ≥ 99% | 51621-57-9 Ne-Acetyl-D-lysine|05985|51621-57-9 https://www.jk-sci.com/products/s57c4x-116640 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_1524db56-f8fc-42ab-afc6-3b420e0892b9.png?v=1791382420 Sodium Valproate Impurity 40, 97.80% Sodium Valproate Impurity 40|C4X-116640 https://www.jk-sci.com/products/s57c4x-116648 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3ee67387d418e87e672345ee58e52ffb.jpg?v=1791382415 Valproic Acid, 99.8% | 99-66-1 Valproic Acid|C4X-116648|99-66-1 https://www.jk-sci.com/products/s57c4x-116646 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/66677678fe7957cf2540be54d5d8e159.jpg?v=1791382414 Valproate Impurity 46, 95.10% | 2985-35-5 Valproate Impurity 46|C4X-116646|2985-35-5 https://www.jk-sci.com/products/j5306352 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/02b4a62ac6ea09e11c97d88092f313c3.jpg?v=1791416531 N-Methyl-4-nitro-L-phenylalanine, Purity by HPLC ≥ 98% | 70663-55-7 N-Methyl-4-nitro-L-phenylalanine|06352|70663-55-7 https://www.jk-sci.com/products/s57c4x-116651 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/573664.png?v=1791382404 2-Propylhexanoic Acid, 90.90% | 3274-28-0 2-Propylhexanoic Acid|C4X-116651|3274-28-0 https://www.jk-sci.com/products/j5306573 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2773ced653df847c49c6c63ca1f60a51.jpg?v=1791416367 Z-b-cyclohexyl-D-alanine, Purity by HPLC ≥ 98% | 154802-74-1 Z-b-cyclohexyl-D-alanine|06573|154802-74-1 https://www.jk-sci.com/products/j5306901 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/457e41de8927070ec1097dc6c6398952.jpg?v=1791416170 1-Phenylpiperazine, Assay ≥ 98% | 92-54-6 1-Phenylpiperazine|06901|92-54-6 https://www.jk-sci.com/products/s57c4x-11666 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/244849.png?v=1791382400 Valproic Acid EP Impurity E, 98.50% | 626-97-1 Valproic Acid EP Impurity E|C4X-11666|626-97-1 https://www.jk-sci.com/products/j5307065 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/988e8173821d0c4bfd449ce0e0bd6a5b.jpg?v=1791416056 (2S,4S)-g-Hydroxy-L-glutamic acid, Assay > 95% | 3913-68-6 (2S,4S)-g-Hydroxy-L-glutamic acid|07065|3913-68-6 https://www.jk-sci.com/products/s57c4x-116664 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_3c80fd93-9262-4f0b-bdc5-5654b25bf9fa.png?v=1791382399 Valproate Impurity 64, 94.40% Valproate Impurity 64|C4X-116664 https://www.jk-sci.com/products/s57c4x-116666 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_9dd9b924-9db3-4029-af4f-6601098a8b19.png?v=1791382393 Valproate Impurity 66, 95.80% Valproate Impurity 66|C4X-116666 https://www.jk-sci.com/products/s57c4x-116675 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e03fc68debb3c1fd75dca20221bfed24.jpg?v=1791382390 Diallylmalonic Acid, 99.00% | 4372-31-0 Diallylmalonic Acid|C4X-116675|4372-31-0 https://www.jk-sci.com/products/s57c4x-116685 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_6e5e8aae-d35c-4624-9f32-d7c3fbb75cdc.png?v=1791382383 Valproate Impurity 85, 98.30% Valproate Impurity 85|C4X-116685 https://www.jk-sci.com/products/s57c4x-1167 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b424bcb3c7b47c9ac293ea7a2d63582e.jpg?v=1791382384 Bedaquiline Fumarate salt, 99.50% | 845533-86-0 Bedaquiline Fumarate salt|C4X-1167|845533-86-0 https://www.jk-sci.com/products/s57c4x-116713 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/812d85af774c683851a6797434b685b5.jpg?v=1791382377 Bedaquiline Impurity 13 (Mixture of Diastereomers), 99.40% | 654653-92-6 Bedaquiline Impurity 13 (Mixture of Diastereomers)|C4X-116713|654653-92-6 https://www.jk-sci.com/products/j5307142 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/957ed00024bf4671e0f2007111d5e2b5.jpg?v=1791415965 Fmoc-1,2-diaminoethane稨Cl, Purity by HPLC ? 99% | 391624-46-7 Fmoc-1,2-diaminoethane稨Cl|07142|391624-46-7 https://www.jk-sci.com/products/s57c4x-116718 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b2018fbead1ab1f865387910f6245ba2.jpg?v=1791382372 Bedaquiline Impurity 18, 97.50% | 955404-04-3 Bedaquiline Impurity 18|C4X-116718|955404-04-3 https://www.jk-sci.com/products/j5307240 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8da7328d4c47baccb842ed27621e4839.jpg?v=1791415852 D-3-Methoxyphenylalanine, Chiral HPLC ≥ 99% (ee) || Purity by HPLC ≥ 99% | 145306-65-6 D-3-Methoxyphenylalanine|07240|145306-65-6 https://www.jk-sci.com/products/s57c4x-116727 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_99dc3836-e89c-4d65-aedb-87f8cbe095e6.png?v=1791382370 Bedaquiline Impurity 27, Purity: 99.8% Bedaquiline Impurity 27|C4X-116727 https://www.jk-sci.com/products/s57c4x-11677 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_98baa7a4-049e-4767-8a48-2c62b6cba45e.png?v=1791382365 Bedaquiline Impurity 7, 99.00% Bedaquiline Impurity 7|C4X-11677 https://www.jk-sci.com/products/s57c4x-11679 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/99ba86910320fd783fee826b4beb94e3.jpg?v=1791382367 Bedaquiline Impurity 9, Purity: 90.2% | 22422-69-1 Bedaquiline Impurity 9|C4X-11679|22422-69-1 https://www.jk-sci.com/products/s57c4x-116818 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/324820.png?v=1791382359 Fosaprepitant Impurity 18, 98.40% | 252742-72-6 Fosaprepitant Impurity 18|C4X-116818|252742-72-6 https://www.jk-sci.com/products/s57c4x-116848 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/633604.png?v=1791382354 Fosaprepitant Impurity 48, 92.10% | 1707-92-2 Fosaprepitant Impurity 48|C4X-116848|1707-92-2 https://www.jk-sci.com/products/s57c4x-11691 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/857a89ead34b88b1683cd78edfff5ea5.jpg?v=1791382353 Rosuvastatin EP Impurity A (Calcium Salt), 79.50% | 1714147-47-3 Rosuvastatin EP Impurity A (Calcium Salt)|C4X-11691|1714147-47-3 https://www.jk-sci.com/products/s57c4x-1169178 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_a2df2b3e-4040-4adc-aaa8-a95d091e9a01.png?v=1791382343 Rosuvastatin EP Impurity K Calcium Salt (Z-isomer), 96.40% Rosuvastatin EP Impurity K Calcium Salt (Z-isomer)|C4X-1169178 https://www.jk-sci.com/products/s57c4x-1169154 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/484d7a8772cf6519632470c0d3266d2b.jpg?v=1791382348 Rosuvastatin Impurity 154, 99.60% | 154026-94-5 Rosuvastatin Impurity 154|C4X-1169154|154026-94-5 https://www.jk-sci.com/products/s57c4x-1169187 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d61391f83a907932dcd515038b50860d.jpg?v=1791382340 Rosuvastatin Impurity 187, 94.10% | 154026-93-4 Rosuvastatin Impurity 187|C4X-1169187|154026-93-4 https://www.jk-sci.com/products/s57c4x-11692 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_04379dc7-d9f8-41cf-8f5b-265d3765ff8b.png?v=1791382332 Rosuvastatin EP Impurity B(Calcium Salt), 92.10% Rosuvastatin EP Impurity B(Calcium Salt)|C4X-11692 https://www.jk-sci.com/products/s57c4x-1169196 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/634c220e8957c171749808d50022f62f.jpg?v=1791382337 Rosuvastatin (6S)-Isomer Calcium Salt, 94.00% | 854898-50-3 Rosuvastatin (6S)-Isomer Calcium Salt|C4X-1169196|854898-50-3 https://www.jk-sci.com/products/s57c4x-1169219 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_ab6a1a18-eac0-4010-b87d-78f4ba9dd562.png?v=1791382329 Rosuvastatin EP Impurity H Sodium Salt, 96.20% Rosuvastatin EP Impurity H Sodium Salt|C4X-1169219 https://www.jk-sci.com/products/s57c4x-116925 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ee2a2b239c37a69e304302828c444a0b.jpg?v=1791382323 Rosuvastatin Impurity 25, 98.60% | 289042-11-1 Rosuvastatin Impurity 25|C4X-116925|289042-11-1 https://www.jk-sci.com/products/s57c4x-116940 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/feeaea07aa40e3122a504414bf9e1c72.jpg?v=1791382324 Rosuvastatin Impurity(3R,5R), 92.30% | 1422515-55-6 Rosuvastatin Impurity(3R,5R)|C4X-116940|1422515-55-6 https://www.jk-sci.com/products/a011443764 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6ce2c86df96a1aafa89952dc40bd8441.jpg?v=1788000922 1,3,5-Tri(2-thienyl)benzene, 98% | 15509-95-2 1,3,5-Tri(2-thienyl)benzene, 98%|1443764|15509-95-2 https://www.jk-sci.com/products/s57c4x-11695 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/467391_cf7dd71f-689f-4250-a200-ddf98ac9a742.png?v=1791382314 Rosuvastatin EP Impurity D, 98.70% | 503610-43-3 Rosuvastatin EP Impurity D|C4X-11695|503610-43-3 https://www.jk-sci.com/products/s57c4x-11057 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/853965c510b69131d4d6dee9fcd2a699.jpg?v=1791384305 (R,S)Palonosetron Impurity 7, 97.80% | 135755-51-0 (R,S)Palonosetron Impurity 7|C4X-11057|135755-51-0 https://www.jk-sci.com/products/s57c4x-1135156 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3fefb6f7382433a92228fc85d38fb050.jpg?v=1791383248 Olaparib Monohydrate, 99.10% | 2093369-28-7 Olaparib Monohydrate|C4X-1135156|2093369-28-7 https://www.jk-sci.com/products/s57c4x-11381 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/798c4b8514cefc404a34c8f1cf83f6cd.jpg?v=1791383186 Dapagliflozin Impurity 1, 95.90% | 1373321-04-0 Dapagliflozin Impurity 1|C4X-11381|1373321-04-0 https://www.jk-sci.com/products/s57c4x-113819 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a00c8d0177001b44d10531a14cb91acc.jpg?v=1791383153 Dapagliflozin Impurity 19, 95.00% | 1204222-85-4 Dapagliflozin Impurity 19|C4X-113819|1204222-85-4 https://www.jk-sci.com/products/s57c4x-11411 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6aa3470139ae099a259b26899519e1d3.jpg?v=1791383005 Aprepitant Impurity 1, Purity: 95.1% | 1148113-53-4 Aprepitant Impurity 1|C4X-11411|1148113-53-4 https://www.jk-sci.com/products/s57c4x-113416 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/940f2387628f601c7ea5f58b845c2e30.jpg?v=1791383286 Neratinib Impurity 16, Purity: 95.9% | 1376619-94-1 Neratinib Impurity 16|C4X-113416|1376619-94-1 https://www.jk-sci.com/products/s57c4x-1130148 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_848bb36d-9f48-4959-a9cf-1e09b25790f4.png?v=1791383563 Ilaprazole Impurity 148, Purity: 97.4% Ilaprazole Impurity 148|C4X-1130148 https://www.jk-sci.com/products/s57c4x-1118100 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_c1ea479f-1d96-491a-8c4e-0533361260b1.png?v=1791383952 Avanafil Impurity 100, 98.20% Avanafil Impurity 100|C4X-1118100 https://www.jk-sci.com/products/j5307334 2026-10-08T05:10:46-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f05aa8256ff1b39a09ae58b9533f8cae.jpg?v=1791415727 Boc-(R,S)-1,3-dihydro-2H-isoindole carboxylic acid, Purity by HPLC ≥ 99% | 221352-46-1 Boc-(R,S)-1,3-dihydro-2H-isoindole carboxylic acid|07334|221352-46-1