https://www.jk-sci.com/products/s57c4x-1720186 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-171824 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/113391_05d74505-ca2b-41cc-8504-e1d250f084fa.png?v=1775070427 Olopatadine Impurity 24 | 3607-17-8 Olopatadine Impurity 24|C4X-171824|3607-17-8 https://www.jk-sci.com/products/s57c4x-172084 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/586004_7ae858f8-d850-4c9c-97a7-d3a134234a21.png?v=1774721211 Oseltamivir | 196618-13-0 Oseltamivir|C4X-172084|196618-13-0 https://www.jk-sci.com/products/s57c4x-172477 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_24f25a59-17d1-467b-9f21-1adc0a8eb36a.png?v=1774974493 Paliperidone Impurity 77 Paliperidone Impurity 77|C4X-172477 https://www.jk-sci.com/products/s57c4x-17267 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/ts246cs-0061759 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e6f3b1e9ddb85f3972d441dbbc2713c3.jpg?v=1776457517 1-Methyl-1H-pyrazolo[4,3-b]pyridin-7-ol | 1057670-31-1 1-Methyl-1H-pyrazolo[4,3-b]pyridin-7-ol|CS-0061759|1057670-31-1 https://www.jk-sci.com/products/s57c4x-17303 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/931ac2e915baf36ac5d7d2483d9a59a2.jpg?v=1776414357 Perphenazine EP Impurity B | 3533-97-9 Perphenazine EP Impurity B|C4X-17303|3533-97-9 https://www.jk-sci.com/products/s57c4x-173254 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/277570_d49e96db-7f8e-42d3-a6b2-44bc0c91d469.png?v=1775135454 Piperacillin Sodium Salt | 59703-84-3 Piperacillin Sodium Salt|C4X-173254|59703-84-3 https://www.jk-sci.com/products/s57c4x-173715 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0291a09ab22d3aa04a8b50ef5e78246f.jpg?v=1776414411 Prednisolone Acetate EP Impurity C | 98523-85-4 Prednisolone Acetate EP Impurity C|C4X-173715|98523-85-4 https://www.jk-sci.com/products/s57c4x-174426 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-17526 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_042820cf-e5d1-4e85-9e86-a7fbacad594f.png?v=1774726963 Rizatriptan EP Impurity D Rizatriptan EP Impurity D|C4X-17526 https://www.jk-sci.com/products/s57c4x-175115 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f8c8bd49be2adf4024a0d4d5320950b2.jpg?v=1776414487 Ritonavir EP Impurity B | 765875-58-9 Ritonavir EP Impurity B|C4X-175115|765875-58-9 https://www.jk-sci.com/products/s57c4x-17564 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ac90c319d3e47d368aee5c08686efa2a.jpg?v=1776414544 Sulbactam EP Impurity D | 26631-90-3 Sulbactam EP Impurity D|C4X-17564|26631-90-3 https://www.jk-sci.com/products/s57c4x-17682 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/794994_6181899e-f2d7-42b9-bf93-0e1b3a2e25d7.png?v=1774672882 Topiramate Impurity 2 | 106881-41-8 Topiramate Impurity 2|C4X-17682|106881-41-8 https://www.jk-sci.com/products/ts246cs-0059226 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/318168.png?v=1776455182 N-(1-Oxo-2,3-dihydro-1H-inden-5-yl)acetamide | 58161-35-6 N-(1-Oxo-2,3-dihydro-1H-inden-5-yl)acetamide|CS-0059226|58161-35-6 https://www.jk-sci.com/products/s57c4x-17608 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3deb187202d8e93e60609e8dc64b27df.jpg?v=1776414568 Teneligliptin (2R,4S)-Isomer | 2448150-93-2 Teneligliptin (2R,4S)-Isomer|C4X-17608|2448150-93-2 https://www.jk-sci.com/products/s57c4x-17711 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7f507cc0b31e6d6a91ac84fccd17c9f1.jpg?v=1776414621 Tranexamic Acid EP Impurity A | 93940-19-3 Tranexamic Acid EP Impurity A|C4X-17711|93940-19-3 https://www.jk-sci.com/products/s57c4x-17718 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/12181df326f2c9092055437888fa5c0a.jpg?v=1776414639 Tranexamic Acid EP Impurity F | 1599413-49-6 Tranexamic Acid EP Impurity F|C4X-17718|1599413-49-6 https://www.jk-sci.com/products/ts246cs-0060507 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/464341_8cca386f-1d1b-4e4c-9d98-7618feafab40.png?v=1776456248 4-Phenylpyridin-3-amine | 146140-99-0 4-Phenylpyridin-3-amine|CS-0060507|146140-99-0 https://www.jk-sci.com/products/s57c4x-177223 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cc0530236ee2704c9cce58eaa6a4109c.jpg?v=1776414656 Trazodone USP Related compound D | 1263278-80-3 Trazodone USP Related compound D|C4X-177223|1263278-80-3 https://www.jk-sci.com/products/s57c4x-177269 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_a08581af-74e9-4817-baf8-a2610e9d32e5.png?v=1774891646 Trazodone Impurity 69 Trazodone Impurity 69|C4X-177269 https://www.jk-sci.com/products/ts246cs-0060849 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/06658c35335a4f15d1a56c4f80733843.jpg?v=1776456588 1-(3-Bromo-5-fluorophenyl)ethan-1-one | 105515-20-6 1-(3-Bromo-5-fluorophenyl)ethan-1-one|CS-0060849|105515-20-6 https://www.jk-sci.com/products/s57c4x-177428 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_8148b61d-953c-47af-9582-bc6d36d87afd.png?v=1774965626 Valganciclovir EP Impurity P Valganciclovir EP Impurity P|C4X-177428 https://www.jk-sci.com/products/s57c4x-177519 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_78c96cac-5894-43ca-aa40-908f70d16083.png?v=1774903067 Vancomycin EP Impurity A Vancomycin EP Impurity A|C4X-177519 https://www.jk-sci.com/products/s57c4x-177236 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_8c9ed053-76e1-417e-980c-46555aa297c1.png?v=1774896696 Trazodone Impurity 36 Trazodone Impurity 36|C4X-177236 https://www.jk-sci.com/products/ts246cs-0061062 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d31f6e9b89237fc7ce5843a2ba62ab74.jpg?v=1776456811 4,4'-((2-Methyl-2-((pyridin-4-yloxy)methyl)propane-1,3-diyl)bis(oxy))dipyridine | 1228960-86-8 4,4'-((2-Methyl-2-((pyridin-4-yloxy)methyl)propane-1,3-diyl)bis(oxy))dipyridine|CS-0061062|1228960-86-8 https://www.jk-sci.com/products/s57c4x-1778 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/107868_5497d985-43f8-44e3-ae85-5bae39dd7571.png?v=1774733281 Verapamil Hydrochloride | 152-11-4 Verapamil Hydrochloride|C4X-1778|152-11-4 https://www.jk-sci.com/products/ts246cs-0061172 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/429834_6a953577-7c2b-4d23-8f91-c88d8350111e.png?v=1776456939 4-Methylbenzene-1,3-dicarboxylic acid | 3347-99-7 4-Methylbenzene-1,3-dicarboxylic acid|CS-0061172|3347-99-7 https://www.jk-sci.com/products/s57c4x-177831 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/258832_2bc39bab-b5ac-4250-9f47-5abcadb2283c.png?v=1774971882 Verapamil EP Impurity J | 67018-85-3 Verapamil EP Impurity J|C4X-177831|67018-85-3 https://www.jk-sci.com/products/s57c4x-177924 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/391404_af2c267d-f57c-4e6d-8cb8-78918b13e9d9.png?v=1775070442 Ascorbic Acid EP Impurity E | 144-62-7 Ascorbic Acid EP Impurity E|C4X-177924|144-62-7 https://www.jk-sci.com/products/s57c4x-17821 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/776275211105aff2b5fee37cd71ec1f3.jpg?v=1776414748 Xylometazoline EP Impurity A | 94266-17-8 Xylometazoline EP Impurity A|C4X-17821|94266-17-8 https://www.jk-sci.com/products/s57c4x-178912 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/330561_e04edfeb-69f8-4191-bcb3-9fb2e6614b98.png?v=1775141952 Doxylamine EP Impurity B | 19490-92-7 Doxylamine EP Impurity B|C4X-178912|19490-92-7 https://www.jk-sci.com/products/s57c4x-17853 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/729c7835bd74c1881929a1f701c881db.jpg?v=1776414760 Zonisamide Impurity 3 | 1217201-89-2 Zonisamide Impurity 3|C4X-17853|1217201-89-2 https://www.jk-sci.com/products/s57c4x-179341 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_616ea74e-55f5-4381-8765-66a0ff62b07f.png?v=1774667871 Ceftizoxime Impurity 41 Ceftizoxime Impurity 41|C4X-179341 https://www.jk-sci.com/products/s57c4x-179315 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/616877_89d97f0f-1f5d-4efe-baad-e29b1f13e0bb.png?v=1774722170 Ceftizoxime Impurity 15 | 54639-48-4 Ceftizoxime Impurity 15|C4X-179315|54639-48-4 https://www.jk-sci.com/products/s57c4x-179210 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1949cb7461f0ac984bbf2a59a43bb799.jpg?v=1776414785 Indobufen Impurity 10 | 94232-67-4 Indobufen Impurity 10|C4X-179210|94232-67-4 https://www.jk-sci.com/products/s57c4x-179228 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/73bd0ea57d6137de8bee3565a75d47f6.jpg?v=1776414794 (R)-Indobufen | 131484-83-8 (R)-Indobufen|C4X-179228|131484-83-8 https://www.jk-sci.com/products/s57c4x-179258 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b0dcdf64a2a2628b6d8a129f3bee00a3.jpg?v=1776414800 Indobufen Impurity 58 | 91642-00-1 Indobufen Impurity 58|C4X-179258|91642-00-1 https://www.jk-sci.com/products/s57c4x-17947 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2d80f05e76f2f9dcac999c3c1235f15f.jpg?v=1776414838 Fexofenadine EP Impurity G | 1187954-57-9 Fexofenadine EP Impurity G|C4X-17947|1187954-57-9 https://www.jk-sci.com/products/s57c4x-17965 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4c88e87a5e6b8e60ecde4f891d505ab1.jpg?v=1776414841 Z-Cilnidipine Impurity 5 | 146924-45-0 Z-Cilnidipine Impurity 5|C4X-17965|146924-45-0 https://www.jk-sci.com/products/s57c4x-17971 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/48187eda414084bdd45ce9451dd4e789.jpg?v=1776414853 Tenofovir Alafenamide Impurity 1 | 342631-41-8 Tenofovir Alafenamide Impurity 1|C4X-17971|342631-41-8 https://www.jk-sci.com/products/s57c4x-179718 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ff6a0a8855e7f31e3d943ccecae39277_b43eac66-8b62-4457-a62a-e2ce66888b42.jpg?v=1776414856 Tenofovir Alafenamide Impurity 18 | 379270-35-6 Tenofovir Alafenamide Impurity 18|C4X-179718|379270-35-6 https://www.jk-sci.com/products/s57c4x-179750 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/77df6fb4819637d08ed71db8b566e4c3.jpg?v=1776414866 Tenofovir Alafenamide Impurity 50 | 1878175-77-9 Tenofovir Alafenamide Impurity 50|C4X-179750|1878175-77-9 https://www.jk-sci.com/products/s57c4x-179770 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_4d8a08ea-4ee5-402a-acf2-5fde39794c21.png?v=1774671770 Tenofovir alafenamide impurity 70 Tenofovir alafenamide impurity 70|C4X-179770 https://www.jk-sci.com/products/s57c4x-180225 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_5ee5e37e-30c9-49b4-a646-ae0b5048115f.png?v=1774726030 Miconazole Nitrate EP Impurity C HCl Miconazole Nitrate EP Impurity C HCl|C4X-180225 https://www.jk-sci.com/products/s57c4x-18024 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/382407_75addae4-b15b-4965-b241-1f471de24208.png?v=1775052759 Miconazole EP Impurity D | 24168-96-5 Miconazole EP Impurity D|C4X-18024|24168-96-5 https://www.jk-sci.com/products/s57c4x-18099 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/24a6dfbdd1b0e97a2b539fd7cced3b08.jpg?v=1776414918 Adapalene Impurity 9 | 132292-17-2 Adapalene Impurity 9|C4X-18099|132292-17-2 https://www.jk-sci.com/products/s57c4x-180310 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cfdc0d5f095ed27315184c59e25b99e4.jpg?v=1776414890 Trimetazidine Impurity 10 HCl | 879646-17-0 Trimetazidine Impurity 10 HCl|C4X-180310|879646-17-0 https://www.jk-sci.com/products/s57c4x-18093 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ef0ebb461b287a5a09e2c4e926769675.jpg?v=1776414911 Adapalene EP Impurity D | 932033-57-3 Adapalene EP Impurity D|C4X-18093|932033-57-3 https://www.jk-sci.com/products/s57c4x-180320 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/322396_6df0f4ab-1b6d-433f-a174-0dfbe7da2ed7.png?v=1775078854 Trimetazidine Impurity 20 | 573-11-5 Trimetazidine Impurity 20|C4X-180320|573-11-5 https://www.jk-sci.com/products/ts246cs-0061254 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2a9beaadc1d6c8cf03af11440115340e.jpg?v=1776457059 6-Methyl-1H-pyrrolo[2,3-b]pyridin-4-amine | 1000340-60-2 6-Methyl-1H-pyrrolo[2,3-b]pyridin-4-amine|CS-0061254|1000340-60-2 https://www.jk-sci.com/products/s57c4x-18091 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1eeb287aa0606f488da26738ee828896.jpg?v=1776414902 Adapalene EP Impurity A | 932033-58-4 Adapalene EP Impurity A|C4X-18091|932033-58-4 https://www.jk-sci.com/products/s57c4x-181018 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1996a0deeb29c007d48f46ff911e6db7.jpg?v=1776414927 【提供游离态C4X-181048】Procaterol Impurities Hydrochloride Hydrate 8 | 81262-93-3 【提供游离态C4X-181048】Procaterol Impurities Hydrochloride Hydrate 8|C4X-181018|81262-93-3 https://www.jk-sci.com/products/ts246cs-0061349 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/111141_5b28fc0a-42f3-44dc-aaa9-b955b86abbbc.png?v=1776457148 6-Methyl-2,4-dihydro-1H-3,1-benzoxazine-2,4-dione | 4692-99-3 6-Methyl-2,4-dihydro-1H-3,1-benzoxazine-2,4-dione|CS-0061349|4692-99-3 https://www.jk-sci.com/products/s57c4x-181041 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d51ce201580477849cc6242bdd37ab02.jpg?v=1776414933 Procaterol Impurities 41 | 59828-07-8 Procaterol Impurities 41|C4X-181041|59828-07-8 https://www.jk-sci.com/products/s57c4x-18112 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/43254445a3f3f28cf7bb202b7c65a561.jpg?v=1776414942 Pranoprofen Impurity 2 | 52549-19-6 Pranoprofen Impurity 2|C4X-18112|52549-19-6 https://www.jk-sci.com/products/ts246cs-0061397 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/468766_cf65e9b7-b731-42bf-8dd2-24ee0296ef04.png?v=1776457212 3-Methylquinoxalin-2-amine | 34972-22-0 3-Methylquinoxalin-2-amine|CS-0061397|34972-22-0 https://www.jk-sci.com/products/s57c4x-181132 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_fbc7d3c4-446b-4ea1-b6c9-a5bac8e1eb0d.png?v=1774726985 Pranoprofen Impurity 32 Pranoprofen Impurity 32|C4X-181132 https://www.jk-sci.com/products/s57c4x-181149 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0ce7ac87600f930c23b77523b8079fb7.jpg?v=1776414948 Pranoprofen Impurity 49 | 1254691-84-3 Pranoprofen Impurity 49|C4X-181149|1254691-84-3 https://www.jk-sci.com/products/s57c4x-18116 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1bf16e9bc0d0bbecb443abeb4bc7a3ee.jpg?v=1776414951 Pranoprofen Impurity 6 | 143436-36-6 Pranoprofen Impurity 6|C4X-18116|143436-36-6 https://www.jk-sci.com/products/ts246cs-0061578 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d76346804900e661d59cd20aa9df11b4.jpg?v=1776457344 Ethyl 5-nitro-1H-pyrrole-2-carboxylate | 36131-46-1 Ethyl 5-nitro-1H-pyrrole-2-carboxylate|CS-0061578|36131-46-1 https://www.jk-sci.com/products/s57c4x-181213 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/53037be688c87c97c9d6f2c57c78da67.jpg?v=1776414958 Suvorexant Impurity 13 | 1149352-55-5 Suvorexant Impurity 13|C4X-181213|1149352-55-5 https://www.jk-sci.com/products/s57c4x-181311 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/16285fa82e28d40e00881c92eb7bc275.jpg?v=1776414963 Butylphthalide Impurity 11 | 111943-62-5 Butylphthalide Impurity 11|C4X-181311|111943-62-5 https://www.jk-sci.com/products/ts246cs-0061504 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/572035.png?v=1776457273 3,5-Dimethyl-1-propylpyrazole-4-carbaldehyde | 142246-47-7 3,5-Dimethyl-1-propylpyrazole-4-carbaldehyde|CS-0061504|142246-47-7 https://www.jk-sci.com/products/ts246cs-0061653 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/428529_f40b32d9-41d7-404e-bd68-42ccd6d0149d.png?v=1776457404 6-ethoxypyridin-2-amine | 768-42-3 6-ethoxypyridin-2-amine|CS-0061653|768-42-3 https://www.jk-sci.com/products/j5312814 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c2fb70e039ba4676728e95e5f944053c.jpg?v=1776330707 Sodium methanethiolate solution (15 wt % in water) | 5188-07-8 Sodium methanethiolate solution (15 wt % in water)|12814|5188-07-8 https://www.jk-sci.com/products/s57c4x-181319 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/216538_9c79f199-80b2-4893-b184-321df4f74d3e.png?v=1774896710 Butylphthalide Impurity 19 | 17369-59-4 Butylphthalide Impurity 19|C4X-181319|17369-59-4 https://www.jk-sci.com/products/s57c4x-181330 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f6d43a9381e8297c5f258105b76feb41.jpg?v=1776414976 Butylphthalide Impurity 30 | 17475-41-1 Butylphthalide Impurity 30|C4X-181330|17475-41-1 https://www.jk-sci.com/products/s57c4x-181354 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9acaac1ff979ceb8c6f4e7d4944a781b.jpg?v=1776414989 Butylphthalide Impurity 54 | 72424-08-9 Butylphthalide Impurity 54|C4X-181354|72424-08-9 https://www.jk-sci.com/products/s57c4x-18136 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/17d6d2d26eb5ef98773367f15a5dc769.jpg?v=1776414999 Butylphthalide Impurity 6 | 162050-42-2 Butylphthalide Impurity 6|C4X-18136|162050-42-2 https://www.jk-sci.com/products/s57c4x-1814 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bd1ac0013c98026e54842c9e74957443_81556eeb-6c35-4b26-8cb8-6b5b355049af.jpg?v=1776415024 Nintedanib Esylate | 656247-18-6 Nintedanib Esylate|C4X-1814|656247-18-6 https://www.jk-sci.com/products/s57c4x-181369 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a84a657d40117ba52271bc9ce1907ba4.jpg?v=1776415015 Butylphthalide Impurity 69 | 879627-88-0 Butylphthalide Impurity 69|C4X-181369|879627-88-0 https://www.jk-sci.com/products/s57c4x-181419 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_b628d651-a857-42fb-b46a-4347f72b54e3.png?v=1775135500 Nintedanib Impurity 19 Nintedanib Impurity 19|C4X-181419 https://www.jk-sci.com/products/s57c4x-181449 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2a0c8cc7958c2b3f1298535d6df9ea3e.jpg?v=1776415045 Nintedanib Impurity 49 | 1168152-07-5 Nintedanib Impurity 49|C4X-181449|1168152-07-5 https://www.jk-sci.com/products/s57c4x-181469 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0a8ac0ec94acafc38a6c2a3c2bf4e640.jpg?v=1776415051 Nintedanib Impurity 69 | 2380229-45-6 Nintedanib Impurity 69|C4X-181469|2380229-45-6 https://www.jk-sci.com/products/ts246cs-0061737 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6bd45fef6c9b8392da02acc16fca4fa2.jpg?v=1776457479 methyl 4-(1-methyl-1H-pyrazol-5-yl)benzoate | 179057-12-6 methyl 4-(1-methyl-1H-pyrazol-5-yl)benzoate|CS-0061737|179057-12-6 https://www.jk-sci.com/products/s57c4x-18143 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/df586d0d6059d7aea99bc46ee2901ebd.jpg?v=1776415040 Nintedanib Impurity 3 | 2093243-16-2 Nintedanib Impurity 3|C4X-18143|2093243-16-2 https://www.jk-sci.com/products/s57c4x-181473 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/615359_19416ca0-4612-48a8-925a-88c31ace61ed.png?v=1774733289 Nintedanib Impurity 73 | 54699-92-2 Nintedanib Impurity 73|C4X-181473|54699-92-2 https://www.jk-sci.com/products/s57c4x-18196 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/452257_09b1a114-7779-4f2d-8d08-3074ccd85474.png?v=1774903088 Lumichrome | 1086-80-2 Lumichrome|C4X-18196|1086-80-2 https://www.jk-sci.com/products/s57c4x-18205 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_434a92b3-7f80-48de-84cc-64003619be8e.png?v=1774644674 Iomeprol Impurity 5 Iomeprol Impurity 5|C4X-18205 https://www.jk-sci.com/products/j5312836 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/133ef38b96720c9d5341ce155f754bac.jpg?v=1776330720 Boc-3-isothiocyanatopropylamine | 286955-45-1 Boc-3-isothiocyanatopropylamine|12836|286955-45-1 https://www.jk-sci.com/products/s57c4x-18221 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/281e40a5a44c6ffd3595ff1cd8bf8483.jpg?v=1776415104 Leuprorelin EP Impurity A TFA | 62621-13-0 Leuprorelin EP Impurity A TFA|C4X-18221|62621-13-0 https://www.jk-sci.com/products/s57c4x-182010 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_50bb6b67-d4da-43bc-86af-d8f3a5a7dd18.png?v=1774967137 Iomeprol Impurity 10 Iomeprol Impurity 10|C4X-182010 https://www.jk-sci.com/products/s57c4x-182222 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_766f5c19-7c4d-4bcf-bd70-55a67cb72155.png?v=1775078871 Leuprorelin EP Impurity G Trifluoroacetic acid Leuprorelin EP Impurity G Trifluoroacetic acid|C4X-182222 https://www.jk-sci.com/products/s57c4x-18191 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/557293_d2946aa5-5166-4e2f-b3dc-bca3f629e6ac.png?v=1774736576 Riboflavin EP Impurity A | 1088-56-8 Riboflavin EP Impurity A|C4X-18191|1088-56-8 https://www.jk-sci.com/products/s57c4x-182111 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_11d96745-4d1a-4b4b-a01d-522b0868644d.png?v=1774962627 S-Polaprezinc Impurity 11 S-Polaprezinc Impurity 11|C4X-182111 https://www.jk-sci.com/products/s57c4x-18171 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/133639_2c3fcad8-af1c-4831-a43d-2cdbc8a65d13.png?v=1775078868 Glycopyrronium Bromide EP Impurity B | 611-73-4 Glycopyrronium Bromide EP Impurity B|C4X-18171|611-73-4 https://www.jk-sci.com/products/s57c4x-18218 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9707276cafe697fdbc45b6843204fdb4.jpg?v=1776415097 S-Polaprezinc Impurity 8 | 7389-97-1 S-Polaprezinc Impurity 8|C4X-18218|7389-97-1 https://www.jk-sci.com/products/ts246cs-0061754 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/359852.png?v=1776457510 1-Methyl-4-nitro-1H-indole | 91482-63-2 1-Methyl-4-nitro-1H-indole|CS-0061754|91482-63-2 https://www.jk-sci.com/products/s57c4x-182224 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-182229 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_343bdcc3-ae46-48b9-b210-82eb2fbceae4.png?v=1774646548 Leuprorelin EP Impurity C Trifluoroacetic acid Leuprorelin EP Impurity C Trifluoroacetic acid|C4X-182229 https://www.jk-sci.com/products/ts246cs-0061786 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/74852f47007e749bc72c118c4d162cf4.jpg?v=1776457554 N-Methylpyridazin-4-amine | 16401-70-0 N-Methylpyridazin-4-amine|CS-0061786|16401-70-0 https://www.jk-sci.com/products/s57c4x-182227 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_dccfbe4b-395b-4559-8e03-f46246607d74.png?v=1774668927 Leuprorelin EP Impurity D 2*Trifluoroacetic acid Leuprorelin EP Impurity D 2*Trifluoroacetic acid|C4X-182227 https://www.jk-sci.com/products/s57c4x-182231 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_b56ce835-61ba-4ff4-b252-3b646a220a11.png?v=1774673864 Leuprorelin impurity 31 Leuprorelin impurity 31|C4X-182231 https://www.jk-sci.com/products/s57c4x-182234 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-18224 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-18231 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/382f3bda5b47f62a30d71e4b91eaa151.jpg?v=1776415110 Theophylline-d6 | 117490-39-8 Theophylline-d6|C4X-18231|117490-39-8 https://www.jk-sci.com/products/j5307134 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b141f7272f58c731adcc415c1fdaf024.jpg?v=1776327548 Fmoc-9-aminononanoic acid | 212688-52-3 Fmoc-9-aminononanoic acid|07134|212688-52-3 https://www.jk-sci.com/products/s57c4x-18246 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/253163.png?v=1775063101 Cefcapene Impurity 6 | 86978-24-7 Cefcapene Impurity 6|C4X-18246|86978-24-7 https://www.jk-sci.com/products/s57c4x-182410 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_c0947b8f-a6e7-4c31-aa07-abc9931e6364.png?v=1774727794 (E)-Cefcapene Pivoxil (E)-Cefcapene Pivoxil|C4X-182410 https://www.jk-sci.com/products/s57c4x-182446 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/ts246cs-0061796 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/74234274a6c860c2780467fa49bf1fd6.jpg?v=1776457560 Methyl 2-(4-hydroxyphenyl)-2-oxoacetate | 38250-16-7 Methyl 2-(4-hydroxyphenyl)-2-oxoacetate|CS-0061796|38250-16-7 https://www.jk-sci.com/products/s57c4x-182436 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6da442083335f62c2b678a5c83481442.jpg?v=1776415123 Cefcapene Impurity 36 | 1360188-88-0 Cefcapene Impurity 36|C4X-182436|1360188-88-0 https://www.jk-sci.com/products/s57c4x-182412 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/efd96de5d4c3e7d1fc30ca3a3a080645.jpg?v=1776415117 Cefcapene Impurity 12 | 3025716-46-2 Cefcapene Impurity 12|C4X-182412|3025716-46-2 https://www.jk-sci.com/products/j5307436 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/de15aaf92af3b43e0986b5ee5b0ce523.jpg?v=1776328252 2-Cyano-L-phenylalanine | 263396-42-5 2-Cyano-L-phenylalanine|07436|263396-42-5 https://www.jk-sci.com/products/ts246cs-0061801 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a4c1b77e9c9f3bd841232ef30bf839b0.jpg?v=1776457566 Methyl 2-amino-5-fluoro-4-methylbenzoate | 929214-84-6 Methyl 2-amino-5-fluoro-4-methylbenzoate|CS-0061801|929214-84-6 https://www.jk-sci.com/products/j5310090 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/af130540396dbd51b24a113f613562e1.jpg?v=1776328977 Tosyl-L-alanine | 99076-56-9 Tosyl-L-alanine|10090|99076-56-9 https://www.jk-sci.com/products/j5308630 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/57a4eb735e9c03937690caa0be21624f.jpg?v=1776328646 Gly-Gly-Phe-OH | 6234-26-0 Gly-Gly-Phe-OH|08630|6234-26-0 https://www.jk-sci.com/products/s57c4x-1826 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/794819.png?v=1774723112 Iguratimod | 123663-49-0 Iguratimod|C4X-1826|123663-49-0 https://www.jk-sci.com/products/j5310936 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/55c9431e59b888fe4da5175b88e64f99.jpg?v=1776329210 1,2-O-Dioctadecyl-sn-glycerol | 82188-61-2 1,2-O-Dioctadecyl-sn-glycerol|10936|82188-61-2 https://www.jk-sci.com/products/s57c4x-1826104 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_74300bcf-e1d9-4844-994d-797f294688dc.png?v=1774886926 Iguratimod Impurity 104 Iguratimod Impurity 104|C4X-1826104 https://www.jk-sci.com/products/j5311066 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dc4a9160dca884dd4eb65e2821c94455.jpg?v=1776329301 Cyclo(-L-Trp-L-Tyr) | 20829-53-2 Cyclo(-L-Trp-L-Tyr)|11066|20829-53-2 https://www.jk-sci.com/products/s57c4x-1826112 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5388d8a611e9e0d6ebad662d22079b17.jpg?v=1776415134 Iguratimod Impurity 112 | 123664-39-1 Iguratimod Impurity 112|C4X-1826112|123664-39-1 https://www.jk-sci.com/products/ts246cs-0061815 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6927459dfdc5fe2a6caefe17e2673424.jpg?v=1776457603 Methyl 2-(bromomethyl)-6-iodobenzoate | 861840-51-9 Methyl 2-(bromomethyl)-6-iodobenzoate|CS-0061815|861840-51-9 https://www.jk-sci.com/products/s57c4x-182614 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-182625 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_30b2a1c9-85b9-4ea0-8795-4798ca3f9df3.png?v=1774727797 Iguratimod Impurity 25 HCl Iguratimod Impurity 25 HCl|C4X-182625 https://www.jk-sci.com/products/s57c4x-182639 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c5a284b36584ddcfdfc3b16db9659bcf_83ea7828-33b2-4210-8649-d4b8f49b1813.jpg?v=1776415140 Iguratimod Impurity 39 | 123662-92-0 Iguratimod Impurity 39|C4X-182639|123662-92-0 https://www.jk-sci.com/products/s57c4x-182645 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_1cc5f740-9754-4882-91b0-a738b4437d94.png?v=1775076425 Iguratimod Impurity 45 Iguratimod Impurity 45|C4X-182645 https://www.jk-sci.com/products/s57c4x-182647 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a960aad9ce811cc2f9c05e811e7f2250.jpg?v=1776415146 Iguratimod Impurity 47 | 149456-97-3 Iguratimod Impurity 47|C4X-182647|149456-97-3 https://www.jk-sci.com/products/s57c4x-18265 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/ts246cs-0061835 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1c39012d48e192b201041370e41a4a25.jpg?v=1776457629 Methyl 6-hydroxypyridazine-4-carboxylate | 89640-81-3 Methyl 6-hydroxypyridazine-4-carboxylate|CS-0061835|89640-81-3 https://www.jk-sci.com/products/s57c4x-182671 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_b1fad4ce-1f5a-4db7-acf3-b9acd7e93723.png?v=1774665963 Iguratimod Impurity 71 Iguratimod Impurity 71|C4X-182671 https://www.jk-sci.com/products/ts246cs-0061829 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/acfa2f2f54498291ec48ffc746a977a5.jpg?v=1776457620 Methyl 3-fluoro-5-nitrobenzoate | 883987-72-2 Methyl 3-fluoro-5-nitrobenzoate|CS-0061829|883987-72-2 https://www.jk-sci.com/products/s57c4x-18291 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/398941.png?v=1774662136 Letrozole EP Impurity A | 112809-52-6 Letrozole EP Impurity A|C4X-18291|112809-52-6 https://www.jk-sci.com/products/s57c4x-18292 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/433836.png?v=1774741413 Letrozole EP Impurity B | 113402-31-6 Letrozole EP Impurity B|C4X-18292|113402-31-6 https://www.jk-sci.com/products/s57c4x-182682 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_acfc2a11-745f-4d7a-a55f-6485607eb9c1.png?v=1774646552 Iguratimod Impurity 82 Iguratimod Impurity 82|C4X-182682 https://www.jk-sci.com/products/s57c4x-18273 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/35c7d2f9d4cd054749938f91c0ddb1d2.jpg?v=1776415154 Methionine Impurity 3 | 31872-98-7 Methionine Impurity 3|C4X-18273|31872-98-7 https://www.jk-sci.com/products/s57c4x-18303 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/adb1e4183cc6397f302ec4eb9bd6ea2e.jpg?v=1776415174 Lacosamide EP Impurity B (R-Isomer) | 1318777-54-6 Lacosamide EP Impurity B (R-Isomer)|C4X-18303|1318777-54-6 https://www.jk-sci.com/products/s57c4x-18324 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f7104f99016b5af75e35449ef12ed477.jpg?v=1776415197 Iopromide EP Impurity D (Mixture of Diastereomers) | 154361-55-4 Iopromide EP Impurity D (Mixture of Diastereomers)|C4X-18324|154361-55-4 https://www.jk-sci.com/products/s57c4x-18295 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/328990_1be8cba7-f404-4635-b4fa-2a366c76b67c.png?v=1774712995 Letrozole Impurity 5 | 32446-66-5 Letrozole Impurity 5|C4X-18295|32446-66-5 https://www.jk-sci.com/products/ts246cs-0061895 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0f408221643d9ed92dcb51f14730bd4c.jpg?v=1776457681 2,6-Dichloro-3-methoxyaniline | 55285-43-3 2,6-Dichloro-3-methoxyaniline|CS-0061895|55285-43-3 https://www.jk-sci.com/products/ts246cs-0061943 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ef1af2fa8eb113c9236daba40e3796f0.jpg?v=1776457747 1,3-Difluoro-5-methoxy-2-nitrobenzene | 66684-62-6 1,3-Difluoro-5-methoxy-2-nitrobenzene|CS-0061943|66684-62-6 https://www.jk-sci.com/products/s57c4x-18307 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-183046 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9b747049012e3e525f414063b8dbe77e.jpg?v=1776415180 Lacosamide Impurity 46 | 1253790-25-8 Lacosamide Impurity 46|C4X-183046|1253790-25-8 https://www.jk-sci.com/products/ts246cs-0061918 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/afa01dba3d25c499b4c880e442edee65.jpg?v=1776457709 Methyl 5-fluoro-6-methoxynicotinate | 953780-40-0 Methyl 5-fluoro-6-methoxynicotinate|CS-0061918|953780-40-0 https://www.jk-sci.com/products/ts246cs-0061951 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/309806ffa50f2a0a42b6ae4755410b37.jpg?v=1776457756 4-Fluoro-5-methoxy-2-nitrobenzoic acid | 864293-50-5 4-Fluoro-5-methoxy-2-nitrobenzoic acid|CS-0061951|864293-50-5 https://www.jk-sci.com/products/s57c4x-183015 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/j5311624 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5ef187cdf23ecf35f4a07ec73817eb03.jpg?v=1776329498 Na-Fmoc-N?,?-dimethyl-L-arginine (symmetrical) | 823789-66-1 Na-Fmoc-N?,?-dimethyl-L-arginine (symmetrical)|11624|823789-66-1 https://www.jk-sci.com/products/s57c4x-18321 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f5cc4130733992672e36c2e47539164c.jpg?v=1776415189 Iopromide EP Impurity A | 154361-51-0 Iopromide EP Impurity A|C4X-18321|154361-51-0 https://www.jk-sci.com/products/j5311689 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2bf3608f9841c06104cf3de944788cb4.jpg?v=1776329591 L-Phenylglycine amide hydrochloride | 60079-51-8 L-Phenylglycine amide hydrochloride|11689|60079-51-8 https://www.jk-sci.com/products/s57c4x-183325 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6dcb448f939eb75e36d886316f79b148.jpg?v=1776415209 Peramivir Impurity 25 | 316173-29-2 Peramivir Impurity 25|C4X-183325|316173-29-2 https://www.jk-sci.com/products/ts246cs-0061851 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/452787.png?v=1776457643 Methyl-biphenyl-2-carboxylate | 16605-99-5 Methyl-biphenyl-2-carboxylate|CS-0061851|16605-99-5 https://www.jk-sci.com/products/s57c4x-182938 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/405312.png?v=1774967145 Letrozole Impurity 38 | 874-86-2 Letrozole Impurity 38|C4X-182938|874-86-2 https://www.jk-sci.com/products/s57c4x-183012 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e2b28bc942c8cdcf055a564b495d1842.jpg?v=1776415164 Lacosamide EP Impurity A | 175481-37-5 Lacosamide EP Impurity A|C4X-183012|175481-37-5 https://www.jk-sci.com/products/ts246cs-0061880 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/40f4a9f7034109f50ca3358abf396772.jpg?v=1776457666 methyl 2-(3-bromoquinolin-6-yl)acetate | 1022091-89-9 methyl 2-(3-bromoquinolin-6-yl)acetate|CS-0061880|1022091-89-9 https://www.jk-sci.com/products/ts246cs-0061911 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ef68fb33c81541d50ba6dd8f8df0e078.jpg?v=1776457704 2-Methoxy-5-(trifluoromethoxy)aniline | 660848-57-7 2-Methoxy-5-(trifluoromethoxy)aniline|CS-0061911|660848-57-7 https://www.jk-sci.com/products/ts246cs-0061932 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ff82dcc1f61a18f851fa5bcf5d2f775a.jpg?v=1776457729 Methyl 3,4-diamino-2-methoxybenzoate | 538372-37-1 Methyl 3,4-diamino-2-methoxybenzoate|CS-0061932|538372-37-1 https://www.jk-sci.com/products/s57c4x-18327 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ae9a32851ac54c9f8c9438e8964b487f.jpg?v=1776415203 Iopromide EP Impurity G (Mixture of Diastereomers) | 154361-53-2 Iopromide EP Impurity G (Mixture of Diastereomers)|C4X-18327|154361-53-2 https://www.jk-sci.com/products/s57c4x-183213 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_093fc8fd-99d1-414a-a8c5-4485ece06474.png?v=1774880551 Iopromide impurity 13 Iopromide impurity 13|C4X-183213 https://www.jk-sci.com/products/s57c4x-183051 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_069d5b48-147c-407c-b1ce-c5148f5ad131.png?v=1775133460 Lacosamide Impurity 51 Lacosamide Impurity 51|C4X-183051 https://www.jk-sci.com/products/ts246cs-0061898 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/358062.png?v=1776457690 Dihydrosinapyl alcohol | 20736-25-8 Dihydrosinapyl alcohol|CS-0061898|20736-25-8 https://www.jk-sci.com/products/ts246cs-0061970 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/129802.png?v=1776457783 6-(4-Methoxyphenyl)pyridazin-3-amine | 4776-87-8 6-(4-Methoxyphenyl)pyridazin-3-amine|CS-0061970|4776-87-8 https://www.jk-sci.com/products/ts246cs-0061966 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ad1163d2d3bdb21e06b0d5648e22a266.jpg?v=1776457777 trans-4-(4-Methoxyphenyl)pyrrolidine-3-carboxylic acid hydrochloride | 1392211-27-6 trans-4-(4-Methoxyphenyl)pyrrolidine-3-carboxylic acid hydrochloride|CS-0061966|1392211-27-6 https://www.jk-sci.com/products/ts246cs-0062011 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f640b1cb18a46a800d737353e59b0f0d.jpg?v=1776457824 2,3-Dibromo-6-methoxypyridine | 909720-21-4 2,3-Dibromo-6-methoxypyridine|CS-0062011|909720-21-4 https://www.jk-sci.com/products/ts246cs-0062017 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5c3a557ac1b41935c9883709030c136c.jpg?v=1776457834 1-(6-methoxypyrimidin-4-yl)piperidin-4-ol | 1065484-27-6 1-(6-methoxypyrimidin-4-yl)piperidin-4-ol|CS-0062017|1065484-27-6 https://www.jk-sci.com/products/ts246cs-0062119 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/641d3a95b3120ef3a96a56bde93991d8.jpg?v=1776457904 9H-pyrido[2,3-b]indole-6-carboxylic acid | 94718-66-8 9H-pyrido[2,3-b]indole-6-carboxylic acid|CS-0062119|94718-66-8 https://www.jk-sci.com/products/ts246cs-0062108 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6c4520e78ab1b119682916f89de19a96.jpg?v=1776457895 Ethyl 1-(4-bromophenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylate | 361990-21-8 Ethyl 1-(4-bromophenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylate|CS-0062108|361990-21-8 https://www.jk-sci.com/products/ts246cs-0062032 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/103148.png?v=1776457842 5-(Methylsulfonyl)benzo[d]oxazol-2(3H)-one | 13920-98-4 5-(Methylsulfonyl)benzo[d]oxazol-2(3H)-one|CS-0062032|13920-98-4 https://www.jk-sci.com/products/ts246cs-0062049 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/253268.png?v=1776457849 Fmoc-(S)-3-Amino-4-(4-fluoro-phenyl)-butyric acid | 270062-83-4 Fmoc-(S)-3-Amino-4-(4-fluoro-phenyl)-butyric acid|CS-0062049|270062-83-4 https://www.jk-sci.com/products/ts246cs-0062148 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6052ca799c11959042c57d045f489302.jpg?v=1776457942 Cyclopentylurea | 1194-06-5 Cyclopentylurea|CS-0062148|1194-06-5 https://www.jk-sci.com/products/ts246cs-0062133 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4cd10b19b5f96e3490e3efef69f7a4f1.jpg?v=1776457917 Methyl 2-formyl-1H-indole-5-carboxylate | 880360-85-0 Methyl 2-formyl-1H-indole-5-carboxylate|CS-0062133|880360-85-0 https://www.jk-sci.com/products/ts246cs-0062160 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/211585.png?v=1776457961 2-Nitro-5-[(phenylacetyl)amino]benzoic Acid | 52033-70-2 2-Nitro-5-[(phenylacetyl)amino]benzoic Acid|CS-0062160|52033-70-2 https://www.jk-sci.com/products/ts246cs-0062176 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a8be63ec542d7af143a7527cb69ac7e0.jpg?v=1776457967 6-chloro-N-cyclopropylpyridine-3-carboxamide | 585544-22-5 6-chloro-N-cyclopropylpyridine-3-carboxamide|CS-0062176|585544-22-5 https://www.jk-sci.com/products/s57c4x-183345 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-183332 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/12e02775924ffa60bc378e9c71609632.jpg?v=1776415212 Peramivir Impurity 32 | 229615-12-7 Peramivir Impurity 32|C4X-183332|229615-12-7 https://www.jk-sci.com/products/s57c4x-18335 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/43a86bd48b78fa9494a79d5d5ce8cd98.jpg?v=1776415218 Peramivir Impurity 5 | 2758048-72-3 Peramivir Impurity 5|C4X-18335|2758048-72-3 https://www.jk-sci.com/products/ts246cs-0062182 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/472668.png?v=1776457973 (S)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-fluorophenyl)propanoic acid | 479064-89-6 (S)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-fluorophenyl)propanoic acid|CS-0062182|479064-89-6 https://www.jk-sci.com/products/s57c4x-183363 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6dcb448f939eb75e36d886316f79b148_edb2366a-7fc6-48e6-8d82-49384054e9f1.jpg?v=1776415221 Peramivir Impurity 63 | 1988779-13-0 Peramivir Impurity 63|C4X-183363|1988779-13-0 https://www.jk-sci.com/products/ts246cs-0060281 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ebddcd9054d5bf310dcb821a049f6ed7.jpg?v=1776455973 5-(Trifluoromethyl)-1H-pyrrolo[2,3-b]pyridine-3-carboxylic acid | 1171920-15-2 5-(Trifluoromethyl)-1H-pyrrolo[2,3-b]pyridine-3-carboxylic acid|CS-0060281|1171920-15-2 https://www.jk-sci.com/products/s57c4x-183367 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_f103f87b-90f5-4c7d-9f73-099e04a9f78c.png?v=1774639106 Peramivir Impurity 67 Peramivir Impurity 67|C4X-183367 https://www.jk-sci.com/products/ts246cs-0061369 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1bd8cdb7268c94cd578cb90b87070283.jpg?v=1776457166 5-Chloro-6-methyl-2-oxo-1,2-dihydropyridine-3-carboxylic acid | 117449-75-9 5-Chloro-6-methyl-2-oxo-1,2-dihydropyridine-3-carboxylic acid|CS-0061369|117449-75-9 https://www.jk-sci.com/products/ts246cs-0061219 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/91f7ba07f229ad1fa34bf511f633bdec.jpg?v=1776457011 2-Bromo-3,5-dimethylphenol | 125237-08-3 2-Bromo-3,5-dimethylphenol|CS-0061219|125237-08-3 https://www.jk-sci.com/products/s57c4x-183373 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_f3809220-daf5-4c26-8609-45ebee8f41dc.png?v=1775078874 Peramivir Impurity 73 Peramivir Impurity 73|C4X-183373 https://www.jk-sci.com/products/ts246cs-0062200 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/299939.png?v=1776457999 Fmoc-(R)-3-Amino-4-(1-naphthyl)-butyric acid | 269398-89-2 Fmoc-(R)-3-Amino-4-(1-naphthyl)-butyric acid|CS-0062200|269398-89-2 https://www.jk-sci.com/products/ts246cs-0061012 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/adc7166257d9621bbf880d72bd099b12.jpg?v=1776456767 tert-Butyl 3-nitrophenethylcarbamate | 180079-93-0 tert-Butyl 3-nitrophenethylcarbamate|CS-0061012|180079-93-0 https://www.jk-sci.com/products/j5311746 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/283698_00e60a76-632b-4fb1-9567-99454ed36c0a.png?v=1776329661 DL-Cystine | 923-32-0 DL-Cystine|11746|923-32-0 https://www.jk-sci.com/products/ts246cs-0061519 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3bb074e0e596ae1d4a4747985ac88ec2.jpg?v=1776457297 (1-Ethylpyrazol-4-yl)methanamine | 856696-09-8 (1-Ethylpyrazol-4-yl)methanamine|CS-0061519|856696-09-8 https://www.jk-sci.com/products/ts246cs-0061695 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d5ed6fbc50ce18f0de69d9628e0588ac.jpg?v=1776457433 5-Chloro-2,3-dihydrochromen-4-one | 1199782-82-5 5-Chloro-2,3-dihydrochromen-4-one|CS-0061695|1199782-82-5 https://www.jk-sci.com/products/ts246cs-0061775 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/98eaccc2c5a465a7336e9bb743c3cd5e.jpg?v=1776457540 (4-Methylmorpholin-2-yl)methanol | 40987-46-0 (4-Methylmorpholin-2-yl)methanol|CS-0061775|40987-46-0 https://www.jk-sci.com/products/s57c4x-183379 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_6bb418ed-e993-42c4-89f9-f7009a279678.png?v=1775072870 Peramivir Impurity 79 Peramivir Impurity 79|C4X-183379 https://www.jk-sci.com/products/ts246cs-0061789 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5fb6e027f36ba56e87909b4baa632bcf.jpg?v=1776457557 1-(3-Chloro-2-fluorophenyl)-N-methylmethanamine | 1305711-90-3 1-(3-Chloro-2-fluorophenyl)-N-methylmethanamine|CS-0061789|1305711-90-3 https://www.jk-sci.com/products/ts246cs-0061805 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6a512bd764f5f64ca35bf4a596142125.jpg?v=1776457577 Dimethyl 3-hydroxyphthalate | 36669-02-0 Dimethyl 3-hydroxyphthalate|CS-0061805|36669-02-0 https://www.jk-sci.com/products/ts246cs-0061831 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a7b24ad86da66225237188d0065d35a9.jpg?v=1776457623 Methyl 4-nitro-1H-pyrrole-2-carboxylate | 13138-74-4 Methyl 4-nitro-1H-pyrrole-2-carboxylate|CS-0061831|13138-74-4 https://www.jk-sci.com/products/ts246cs-0061853 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0eb564a328cd48adee5f6e431a636150.jpg?v=1776457645 Methyl 2,3-dihydro-1,4-benzodioxine-6-carboxylate | 20197-75-5 Methyl 2,3-dihydro-1,4-benzodioxine-6-carboxylate|CS-0061853|20197-75-5 https://www.jk-sci.com/products/ts246cs-0061896 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/574db0971c869141bf08da77adfe7ba7.jpg?v=1776457684 6-Fluoro-2,3-dimethoxybenzoic acid | 265670-72-2 6-Fluoro-2,3-dimethoxybenzoic acid|CS-0061896|265670-72-2 https://www.jk-sci.com/products/j5311801 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/56d19fedf39599c731e973f254b561b4.jpg?v=1776329742 N,O-Bis-acetyl-L-tyrosine | 17355-23-6 N,O-Bis-acetyl-L-tyrosine|11801|17355-23-6 https://www.jk-sci.com/products/ts246cs-0061915 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b5d9c22f9d31b14c91cfc4ff559eae38.jpg?v=1776457707 3,5-Dibromo-4-methoxybenzaldehyde | 108940-96-1 3,5-Dibromo-4-methoxybenzaldehyde|CS-0061915|108940-96-1 https://www.jk-sci.com/products/s57c4x-183411 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/101784_9fc18158-999e-44ba-a710-fdd595dbad92.png?v=1774673868 Nitrendipine Impurity 11 | 99-61-6 Nitrendipine Impurity 11|C4X-183411|99-61-6 https://www.jk-sci.com/products/ts246cs-0061938 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/071abb63860160f1b134662078a2dcfa.jpg?v=1776457741 (6-Chloro-5-methoxypyridin-2-yl)methanol | 1227602-31-4 (6-Chloro-5-methoxypyridin-2-yl)methanol|CS-0061938|1227602-31-4 https://www.jk-sci.com/products/s57c4x-18343 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5b11a10698ff33800705a9cefa051507.jpg?v=1776415231 Nitrendipine Impurity 3 | 76258-20-3 Nitrendipine Impurity 3|C4X-18343|76258-20-3 https://www.jk-sci.com/products/ts246cs-0061958 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d7fe1972737c4201eca1ffcc77011cbc.jpg?v=1776457762 3-Chloro-5-methoxyaniline | 10272-06-7 3-Chloro-5-methoxyaniline|CS-0061958|10272-06-7 https://www.jk-sci.com/products/ts246cs-0061999 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/50a22c713c21cd990375bca394e3e99f.jpg?v=1776457811 Methyl 8-methoxyquinoline-4-carboxylate | 1355233-81-6 Methyl 8-methoxyquinoline-4-carboxylate|CS-0061999|1355233-81-6 https://www.jk-sci.com/products/s57c4x-183512 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_b8d9d35f-fb26-4881-8964-d2f2bbe7f9da.png?v=1774667887 Hydroxychloroquine Impurity 12 Hydroxychloroquine Impurity 12|C4X-183512 https://www.jk-sci.com/products/s57c4x-183526 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_a917697c-fa1d-43ee-ac55-d70fcb46f7ab.png?v=1774733292 Hydroxychloroquine EP Impurity D Hydrogen sulfate Hydroxychloroquine EP Impurity D Hydrogen sulfate|C4X-183526 https://www.jk-sci.com/products/ts246cs-0062024 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3fba7c18855b908091b32db51388ab1f.jpg?v=1776457837 (5-(Methoxymethyl)pyridin-3-yl)boronic acid | 200204-95-1 (5-(Methoxymethyl)pyridin-3-yl)boronic acid|CS-0062024|200204-95-1 https://www.jk-sci.com/products/s57c4x-18351 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f5ebf8d3d6e8742231235fa68a149e00.jpg?v=1776415234 Hydroxychloroquine EP Impurity A | 1449223-88-4 Hydroxychloroquine EP Impurity A|C4X-18351|1449223-88-4 https://www.jk-sci.com/products/ts246cs-0062126 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c6d132d738cbfe7f4dd914c581a0e727.jpg?v=1776457913 2-(6-Oxo-1,6-dihydro-9H-purin-9-yl)acetic acid | 6298-53-9 2-(6-Oxo-1,6-dihydro-9H-purin-9-yl)acetic acid|CS-0062126|6298-53-9 https://www.jk-sci.com/products/ts246cs-0062066 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2f9aea5a54ab818f1dac59262fc5c565.jpg?v=1776457875 3-oxo-4H-1,4-benzoxazine-6-carbonitrile | 134997-74-3 3-oxo-4H-1,4-benzoxazine-6-carbonitrile|CS-0062066|134997-74-3 https://www.jk-sci.com/products/s57c4x-183548 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/437213.png?v=1774886933 Hydroxychloroquine EP Impurity D | 1476-52-4 Hydroxychloroquine EP Impurity D|C4X-183548|1476-52-4 https://www.jk-sci.com/products/ts246cs-0062158 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/414793.png?v=1776457954 Fmoc-(S)-3-Amino-4-(4-nitro-phenyl)-butyric acid | 270062-88-9 Fmoc-(S)-3-Amino-4-(4-nitro-phenyl)-butyric acid|CS-0062158|270062-88-9 https://www.jk-sci.com/products/s57c4x-183553 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/453528.png?v=1774886939 Hydroxychloroquine Impurity 53 | 109-83-1 Hydroxychloroquine Impurity 53|C4X-183553|109-83-1 https://www.jk-sci.com/products/j5311867 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/63bc30cd0c1a3a4ad51fcc023c2b7f4f.jpg?v=1776329833 Boc-L-6-hydroxynorleucine | 77611-37-1 Boc-L-6-hydroxynorleucine|11867|77611-37-1 https://www.jk-sci.com/products/s57c4x-183566 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_e72ade57-5af6-4182-a084-e65579c8f498.png?v=1774726998 N-nitroso hydroxychloroquine EP Impurity D N-nitroso hydroxychloroquine EP Impurity D|C4X-183566 https://www.jk-sci.com/products/ts246cs-0062179 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/12f54b80dade8942fa7258d83eaeae9e.jpg?v=1776457970 2-((4-Fluorophenyl)amino)-2-oxoacetic acid | 69066-43-9 2-((4-Fluorophenyl)amino)-2-oxoacetic acid|CS-0062179|69066-43-9 https://www.jk-sci.com/products/j5311912 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cc8b4f48bd6665d9737b1503645f677f.jpg?v=1776329897 Benzyl glycine methyl ester hydrochloride | 17136-35-5 Benzyl glycine methyl ester hydrochloride|11912|17136-35-5 https://www.jk-sci.com/products/ts246cs-0062218 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/91c7c824cee61a09ce4ce7e8556716bf.jpg?v=1776458018 (5S)-5-phenylmorpholin-3-one | 1052209-96-7 (5S)-5-phenylmorpholin-3-one|CS-0062218|1052209-96-7 https://www.jk-sci.com/products/ts246cs-0062393 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b408b73fd23c85416b47bbddaff6bd1d.jpg?v=1776458095 2-(4-Bromophenyl)-6-methyl-1,3,6,2-dioxazaborocane | 115247-41-1 2-(4-Bromophenyl)-6-methyl-1,3,6,2-dioxazaborocane|CS-0062393|115247-41-1 https://www.jk-sci.com/products/ts246cs-0062237 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f0a62586c33b0de2ca7df4dbc88045c7.jpg?v=1776458042 (11bS)?-N,?N-?Dipropyl-dinaphtho[2,?1-?d:1',?2'-?f]?[1,?3,?2]?dioxaphosphepin-?4-?amine | 802902-36-9 (11bS)?-N,?N-?Dipropyl-dinaphtho[2,?1-?d:1',?2'-?f]?[1,?3,?2]?dioxaphosphepin-?4-?amine|CS-0062237|802902-36-9 https://www.jk-sci.com/products/ts246cs-0062311 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/394677.png?v=1776458071 4-Hydroxyhippuric acid | 2482-25-9 4-Hydroxyhippuric acid|CS-0062311|2482-25-9 https://www.jk-sci.com/products/ts246cs-0062230 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/db53997557a9255eff8b50c52d96228c.jpg?v=1776458033 2-Ethylbenzo[d]oxazole | 6797-13-3 2-Ethylbenzo[d]oxazole|CS-0062230|6797-13-3 https://www.jk-sci.com/products/j5312065 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/74ff9a79c3c0414cfaa27a5007d04760.jpg?v=1776330025 L-Homophenylalanine ethyl ester hydrochloride | 90891-21-7 L-Homophenylalanine ethyl ester hydrochloride|12065|90891-21-7 https://www.jk-sci.com/products/ts246cs-0062448 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/467771.png?v=1776458123 (11aR)-10,11,12,13-Tetrahydro-5-phenoxy-diindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin | 656233-53-3 (11aR)-10,11,12,13-Tetrahydro-5-phenoxy-diindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin|CS-0062448|656233-53-3 https://www.jk-sci.com/products/j5312159 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3a1c444d9523daf779b9e381846a6a27.jpg?v=1776330107 Phthaloyl-DL-Valine | 5115-65-1 Phthaloyl-DL-Valine|12159|5115-65-1 https://www.jk-sci.com/products/ts246cs-0062564 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/591629.png?v=1776458163 5-Methoxy-3-methylbenzofuran-2-carboxylic acid | 81718-77-6 5-Methoxy-3-methylbenzofuran-2-carboxylic acid|CS-0062564|81718-77-6 https://www.jk-sci.com/products/j5312199 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7062e246ae36115442677b938d4e1717.jpg?v=1776330135 Z-L-alanine methyl ester | 28819-05-8 Z-L-alanine methyl ester|12199|28819-05-8 https://www.jk-sci.com/products/j5312391 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9a92685de3ca42334352ee5757894916.jpg?v=1776330303 Fmoc-D-aspartic acid b-allyl ester | 177609-12-0 Fmoc-D-aspartic acid b-allyl ester|12391|177609-12-0 https://www.jk-sci.com/products/j5312305 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e8a0f3997c44bfc379472dcfee963df8.jpg?v=1776330210 Na-Z-Nd-Boc-L-ornithine dicyclohexyl ammonium salt | 13665-13-9 Na-Z-Nd-Boc-L-ornithine dicyclohexyl ammonium salt|12305|13665-13-9 https://www.jk-sci.com/products/j5312376 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b5e5e807a74d1285cfb4a0830170e2af.jpg?v=1776330267 Fmoc-3,5-diiodo-D-tyrosine | 212651-51-9 Fmoc-3,5-diiodo-D-tyrosine|12376|212651-51-9 https://www.jk-sci.com/products/j5312398 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4a5f19e8917b247f6e3122db717d4919.jpg?v=1776330328 4-Cyano-DL-phenylalanine | 22888-47-7 4-Cyano-DL-phenylalanine|12398|22888-47-7 https://www.jk-sci.com/products/ts246cs-0062591 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/32eb228df9b913fba7b163842b73c39a.jpg?v=1776458191 7-methylbenzofuran-2-carboxylic acid | 17349-64-3 7-methylbenzofuran-2-carboxylic acid|CS-0062591|17349-64-3 https://www.jk-sci.com/products/ts246cs-0062783 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/86f8758c7bf50231fdfd060cfc7333fb.jpg?v=1776458238 (2E,4E,6E,8E,10E)-Diethyl 4,9-dimethyldodeca-2,4,6,8,10-pentaenedioate | 53163-55-6 (2E,4E,6E,8E,10E)-Diethyl 4,9-dimethyldodeca-2,4,6,8,10-pentaenedioate|CS-0062783|53163-55-6 https://www.jk-sci.com/products/ts246cs-0063162 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/807494.png?v=1776458280 3-(3,5-Dichlorophenyl)propanoic acid | 95333-95-2 3-(3,5-Dichlorophenyl)propanoic acid|CS-0063162|95333-95-2 https://www.jk-sci.com/products/ts246cs-0063178 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/111063.png?v=1776458312 (3-Chloro-2-fluorophenyl)hydrazine hydrochloride | 517920-75-1 (3-Chloro-2-fluorophenyl)hydrazine hydrochloride|CS-0063178|517920-75-1 https://www.jk-sci.com/products/ts246cs-0063187 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/aaf1c29f859ab72e8bcc35418d456fb5.jpg?v=1776458325 4-Nitro-1H-pyrazole-3-carbonitrile | 61241-07-4 4-Nitro-1H-pyrazole-3-carbonitrile|CS-0063187|61241-07-4 https://www.jk-sci.com/products/j5312408 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3c8fc575a3e1b6368fbca77c27d806f8.jpg?v=1776330346 Na-Boc-L-lysine methyl ester hydrochloride | 55757-60-3 Na-Boc-L-lysine methyl ester hydrochloride|12408|55757-60-3 https://www.jk-sci.com/products/ts246cs-0063189 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/140890.png?v=1776458331 2-Amino-2-phenylacetonitrile hydrochloride | 53641-60-4 2-Amino-2-phenylacetonitrile hydrochloride|CS-0063189|53641-60-4 https://www.jk-sci.com/products/j5312435 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ef02687a85088c03ee248be77c7a7c5c.jpg?v=1776330381 Fmoc-D-glutamic acid a-allyl ester | 204251-86-5 Fmoc-D-glutamic acid a-allyl ester|12435|204251-86-5 https://www.jk-sci.com/products/ts246cs-0063208 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/319021.png?v=1776458367 4-Methoxycoumarin | 20280-81-3 4-Methoxycoumarin|CS-0063208|20280-81-3 https://www.jk-sci.com/products/s57c4x-18357 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/68a83db8d0f9b6746e4cb2dcac076dff.jpg?v=1776415242 Hydroxychloroquine Impurity 7 | 47493-14-1 Hydroxychloroquine Impurity 7|C4X-18357|47493-14-1 https://www.jk-sci.com/products/s57c4x-18358 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/610255.png?v=1774886945 Hydroxychloroquine EP Impurity G | 86-98-6 Hydroxychloroquine EP Impurity G|C4X-18358|86-98-6 https://www.jk-sci.com/products/j5312500 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/91961a5ba8e49fcea7bdb82f10906f51.jpg?v=1776330409 Fmoc-L-proline Rink amide AM resin Fmoc-L-proline Rink amide AM resin|12500 https://www.jk-sci.com/products/s57c4x-18362 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-18363 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dd589155ff35e5a7ac6d5e2d341c9492.jpg?v=1776415248 Torasemide EP Impurity C | 58155-35-4 Torasemide EP Impurity C|C4X-18363|58155-35-4 https://www.jk-sci.com/products/ts246cs-0063215 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/931ca6f2c07791152e73b4decfb36c8a.jpg?v=1776458380 5-(Diphenylamino)thiophene-2-carbaldehyde | 133878-94-1 5-(Diphenylamino)thiophene-2-carbaldehyde|CS-0063215|133878-94-1 https://www.jk-sci.com/products/s57c4x-18365 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/j5312606 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5d6f2a15eb08b6f7994d8e2985324cef.jpg?v=1776330448 Na-Fmoc-Nb-(N-Boc-amino-oxyacetyl)-L-2,3-diaminopropionic acid | 600153-12-6 Na-Fmoc-Nb-(N-Boc-amino-oxyacetyl)-L-2,3-diaminopropionic acid|12606|600153-12-6 https://www.jk-sci.com/products/ts246cs-0063348 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e2978e010bfeb53df330410fa946758a.jpg?v=1776458399 m-PEG1-NHS ester | 1027371-75-0 m-PEG1-NHS ester|CS-0063348|1027371-75-0 https://www.jk-sci.com/products/s57c4x-18371 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/ts246cs-0061102 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c30de4b1d3229e8d368165f7eaf4ab5e.jpg?v=1776456854 3-Phenoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine | 1309981-45-0 3-Phenoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine|CS-0061102|1309981-45-0 https://www.jk-sci.com/products/s57c4x-183720 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_7482769e-e2ac-4152-9224-b0ab82d6796a.png?v=1774715021 Clemastine Impurity 20 Clemastine Impurity 20|C4X-183720 https://www.jk-sci.com/products/ts246cs-0061452 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/85e6d80f94b2328ac5ece31ca863e374.jpg?v=1776457248 4-Chloro-2-ethylaniline | 30273-39-3 4-Chloro-2-ethylaniline|CS-0061452|30273-39-3 https://www.jk-sci.com/products/j5312636 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/564f1a148855561993180814105a8130.jpg?v=1776330472 Fmoc-1(1-Boc-piperidin-4-yl)-DL-glycine | 204058-24-2 Fmoc-1(1-Boc-piperidin-4-yl)-DL-glycine|12636|204058-24-2 https://www.jk-sci.com/products/j5312664 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ad58cbe1e05cbf9ab7fe8c44ce0c941d_8cfdf1c1-f43e-454d-9d66-5b1a7b8df111.jpg?v=1776330516 Rink amide resin (0.7 - 0.9 mmol/g, 70 - 90 mesh) Rink amide resin (0.7 - 0.9 mmol/g, 70 - 90 mesh)|12664 https://www.jk-sci.com/products/j5312766 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8736f040c79bf42503fe3a737f6c7483.jpg?v=1776330601 Fmoc-O-tert-butyl-L-b-homothreonine | 353245-99-5 Fmoc-O-tert-butyl-L-b-homothreonine|12766|353245-99-5 https://www.jk-sci.com/products/ts246cs-0061748 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/791915_f3bda2e4-9700-4666-bc4c-46dd5f397eaa.png?v=1776457497 4-(1-Methylpyrazol-3-yl)benzaldehyde | 179055-27-7 4-(1-Methylpyrazol-3-yl)benzaldehyde|CS-0061748|179055-27-7 https://www.jk-sci.com/products/j5312758 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0a63584c82eb1590f35d5c1268512082.jpg?v=1776330575 L-b-Homoisoleucine hydrochloride | 219310-10-8 L-b-Homoisoleucine hydrochloride|12758|219310-10-8 https://www.jk-sci.com/products/ts246cs-0061905 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9ddbd32956d26ab56e428a3a2ba33f4d.jpg?v=1776457699 5-Bromo-4-fluoro-2-methoxyaniline | 1397237-98-7 5-Bromo-4-fluoro-2-methoxyaniline|CS-0061905|1397237-98-7 https://www.jk-sci.com/products/ts246cs-0061849 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3f732a55fea3dee25f72c4debde7c13c.jpg?v=1776457637 Methyl 5-nitro-1H-pyrrole-2-carboxylate | 13138-73-3 Methyl 5-nitro-1H-pyrrole-2-carboxylate|CS-0061849|13138-73-3 https://www.jk-sci.com/products/ts246cs-0061799 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/697aa60498e80b3f59c76c96f25d3cd0.jpg?v=1776457563 Dimethyl 2-(pyrimidin-2-yl)malonate | 93271-75-1 Dimethyl 2-(pyrimidin-2-yl)malonate|CS-0061799|93271-75-1 https://www.jk-sci.com/products/ts246cs-0061950 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/548071_c08d5ca2-3133-4d02-8f1f-bec85cfd9ccb.png?v=1776457753 1-Bromo-4-chloro-2-fluoro-5-methoxybenzene | 146447-18-9 1-Bromo-4-chloro-2-fluoro-5-methoxybenzene|CS-0061950|146447-18-9 https://www.jk-sci.com/products/s57c4x-18374 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/544976_2f9d15d6-2faf-4647-99ff-894e231ec0bd.png?v=1774642487 Clemastine Impurity 4 | 67004-64-2 Clemastine Impurity 4|C4X-18374|67004-64-2 https://www.jk-sci.com/products/ts246cs-0062016 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/763b2258e841d07269ccbf194d9cab77.jpg?v=1776457830 1-(6-Methoxy-pyrimidin-4-yl)-piperidine-4-carboxylic acid | 1334488-49-1 1-(6-Methoxy-pyrimidin-4-yl)-piperidine-4-carboxylic acid|CS-0062016|1334488-49-1 https://www.jk-sci.com/products/ts246cs-0062115 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fec81117cbadeab7015839c761ffe063.jpg?v=1776457901 3-Isopropyl-5-methyl-4H-[1,2,4]triazole | 87268-63-1 3-Isopropyl-5-methyl-4H-[1,2,4]triazole|CS-0062115|87268-63-1 https://www.jk-sci.com/products/s57c4x-18376 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4f9764d356b7f0aa4a2975b96f44ac0c.jpg?v=1776415265 Clemastine Impurity 6 Fumarate (S,S-isomer) | 61826-29-7 Clemastine Impurity 6 Fumarate (S,S-isomer)|C4X-18376|61826-29-7 https://www.jk-sci.com/products/s57c4x-183811 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/147901_57188f28-a6e2-4e67-a9ff-ddd636c099e9.png?v=1774986429 Betahistine Impurity 11 | 2706-56-1 Betahistine Impurity 11|C4X-183811|2706-56-1 https://www.jk-sci.com/products/ts246cs-0062172 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/31f115d2bbe0395059b2f3cf02808d2b.jpg?v=1776457964 tert-butyl 4-hydroxy-4-(thiophen-2-yl)piperidine-1-carboxylate | 630119-99-2 tert-butyl 4-hydroxy-4-(thiophen-2-yl)piperidine-1-carboxylate|CS-0062172|630119-99-2 https://www.jk-sci.com/products/s57c4x-18378 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d7bc74690e211325fa0918a8418bd63f.jpg?v=1776415271 Chloramistine Impurity 8 | 18218-20-7 Chloramistine Impurity 8|C4X-18378|18218-20-7 https://www.jk-sci.com/products/s57c4x-183819 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/94290de9c509a59802b6b1d69f9d1011.jpg?v=1776415274 Betahistine Impurity 19 | 32635-81-7 Betahistine Impurity 19|C4X-183819|32635-81-7 https://www.jk-sci.com/products/ts246cs-0062203 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/31151e215fa5f1b2a7ae91b479366a40.jpg?v=1776458002 3-Oxoisoindoline-4-carboxylic acid | 935269-27-5 3-Oxoisoindoline-4-carboxylic acid|CS-0062203|935269-27-5 https://www.jk-sci.com/products/s57c4x-183820 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_dc84e9ee-825a-4695-92a8-d3c42427b7cb.png?v=1774673872 Betahistine Impurity 20 Trihydrochloride Betahistine Impurity 20 Trihydrochloride|C4X-183820 https://www.jk-sci.com/products/ts246cs-0062235 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d258f8a3f73b55fa402660c599fcdc13.jpg?v=1776458040 8-Bromodibenzo[b,d]furan-2-carbonitrile | 1442648-14-7 8-Bromodibenzo[b,d]furan-2-carbonitrile|CS-0062235|1442648-14-7 https://www.jk-sci.com/products/ts246cs-0062370 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/590eee9038879435ed198552078654c8.jpg?v=1776458090 m-PEG3-CH2CH2COOH | 67319-28-2 m-PEG3-CH2CH2COOH|CS-0062370|67319-28-2 https://www.jk-sci.com/products/j5312777 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e27e9250710d28196fc1191866db0563.jpg?v=1776330637 Boc-Nw-tosyl-L-b-homoarginine | 136271-81-3 Boc-Nw-tosyl-L-b-homoarginine|12777|136271-81-3 https://www.jk-sci.com/products/j5312784 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9be61002850c177162c5d8b7c38ee62f.jpg?v=1776330660 Nb-Boc-Nw-Z-L-b-homolysine | 346694-77-7 Nb-Boc-Nw-Z-L-b-homolysine|12784|346694-77-7 https://www.jk-sci.com/products/ts246cs-0062562 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c07257f5e23f64d51b6f862110b3ba9a.jpg?v=1776458161 5-Bromo-3-methylbenzofuran-2-carboxylic acid | 50638-08-9 5-Bromo-3-methylbenzofuran-2-carboxylic acid|CS-0062562|50638-08-9 https://www.jk-sci.com/products/j5312794 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/286f08674556a92b42a7d3aab8a4a884.jpg?v=1776330685 Boc-2,4-dichloro-D-phenylalanine | 114873-12-0 Boc-2,4-dichloro-D-phenylalanine|12794|114873-12-0 https://www.jk-sci.com/products/ts246cs-0062773 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/65f78d37347e996e24a970d8e0654f6f.jpg?v=1776458232 4,6-Bis(3,5-di(pyridin-3-yl)phenyl)-2-methylpyrimidine | 925425-96-3 4,6-Bis(3,5-di(pyridin-3-yl)phenyl)-2-methylpyrimidine|CS-0062773|925425-96-3 https://www.jk-sci.com/products/j5312849 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/612ea0f3032c3a4b354b195c973a5701.jpg?v=1776330759 Fmoc-L-b-glutamic acid 5-tert-butyl ester | 209252-17-5 Fmoc-L-b-glutamic acid 5-tert-butyl ester|12849|209252-17-5 https://www.jk-sci.com/products/j5312831 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/89a8de7674608f73f9debba756ec8104.jpg?v=1776330714 N-Hydroxysulfosuccinimide sodium salt | 106627-54-7 N-Hydroxysulfosuccinimide sodium salt|12831|106627-54-7 https://www.jk-sci.com/products/j5312900 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8720239ef90f7e6483b67e9f41643eeb.jpg?v=1776330829 (-)-(1S,4R)-N-Fmoc-4-aminocyclopent-2-enecarboxylic acid | 220497-64-3 (-)-(1S,4R)-N-Fmoc-4-aminocyclopent-2-enecarboxylic acid|12900|220497-64-3 https://www.jk-sci.com/products/ts246cs-0063188 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c1f17d973fa8595016d2953d6021c6c2.jpg?v=1776458328 Methyl 3-methylbenzo[b]thiophene-2-carboxylate | 3133-81-1 Methyl 3-methylbenzo[b]thiophene-2-carboxylate|CS-0063188|3133-81-1 https://www.jk-sci.com/products/ts246cs-0063211 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/515880.png?v=1776458374 Thiophen-3-ylmethanamine hydrochloride | 115132-84-8 Thiophen-3-ylmethanamine hydrochloride|CS-0063211|115132-84-8 https://www.jk-sci.com/products/j5312855 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5ba1841c1c08be60b53d3490d9acaf9a.jpg?v=1776330768 Cesium hydroxide monohydrate | 35103-79-8 Cesium hydroxide monohydrate|12855|35103-79-8 https://www.jk-sci.com/products/ts246cs-0063165 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/369560.png?v=1776458286 1-Chloroadamantane | 935-56-8 1-Chloroadamantane|CS-0063165|935-56-8 https://www.jk-sci.com/products/j5312864 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a24e4d254656e3b4d1875c2448ca8cce.jpg?v=1776330798 Boc-b-cyclohexyl-L-alanine methyl ester | 98105-41-0 Boc-b-cyclohexyl-L-alanine methyl ester|12864|98105-41-0 https://www.jk-sci.com/products/j5312909 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8ebe5e17a3fe3dc73737c1f62cdb69e2.jpg?v=1776330847 N,N'-Bis-Boc-S-methylisothiourea | 107819-90-9 N,N'-Bis-Boc-S-methylisothiourea|12909|107819-90-9 https://www.jk-sci.com/products/j5312930 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9e34bb8f2c3083d2cd5cb4f103661a32.jpg?v=1776330870 Diethyl (Boc-amino)malonate | 102831-44-7 Diethyl (Boc-amino)malonate|12930|102831-44-7 https://www.jk-sci.com/products/j5312933 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b6371a0d4407e02b4eb0720ceeb3f6be.jpg?v=1776330876 Dibenzyl dicarbonate | 31139-36-3 Dibenzyl dicarbonate|12933|31139-36-3 https://www.jk-sci.com/products/j5314003 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/55d97e5380185f6169d9e5ce4b847516.jpg?v=1776330982 (+) Biotinyl-6-aminohexanoic acid | 72040-64-3 (+) Biotinyl-6-aminohexanoic acid|14003|72040-64-3 https://www.jk-sci.com/products/j5312987 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/45bc03b7c873705ddc075a3e7ea47354.jpg?v=1776330951 3,4-Dihydro-2H-pyran-2-methanol | 3749-36-8 3,4-Dihydro-2H-pyran-2-methanol|12987|3749-36-8 https://www.jk-sci.com/products/j5312968 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3882b84f2c1b9cd790e58c0079a813ce.jpg?v=1776330922 4-Nitrobenzyl chloroformate | 4457-32-3 4-Nitrobenzyl chloroformate|12968|4457-32-3 https://www.jk-sci.com/products/j5312974 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6e781cfaa95838eb17d2ae3e3ca623d6.jpg?v=1776330934 4-Bromomethyl-3-nitrobenzoic acid | 55715-03-2 4-Bromomethyl-3-nitrobenzoic acid|12974|55715-03-2 https://www.jk-sci.com/products/j5314019 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0335a350de9e9e225d35e270a1b4b63d_01a01d26-8165-4616-a217-acb1a194fd18.jpg?v=1776331009 Boc-N-methyl-4-chloro-L-phenylalanine | 179033-68-2 Boc-N-methyl-4-chloro-L-phenylalanine|14019|179033-68-2 https://www.jk-sci.com/products/j5314011 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3193aec629912df2ea011e9f3635f3a7.jpg?v=1776330996 L-Alanine allyl ester hydrochloride | 203799-82-0 L-Alanine allyl ester hydrochloride|14011|203799-82-0 https://www.jk-sci.com/products/j5314038 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ecc68676af02da64e9cf44b464299d2f.jpg?v=1776331034 1-(Bromomethyl)naphthalene | 3163-27-7 1-(Bromomethyl)naphthalene|14038|3163-27-7 https://www.jk-sci.com/products/j5314047 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6ca23b9d8fab080e7cc4ac9d3d68f245.jpg?v=1776331051 Boc-cycloleucine | 35264-09-6 Boc-cycloleucine|14047|35264-09-6 https://www.jk-sci.com/products/j5314263 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e59358ba2c277273e2694721a0e36bb0.jpg?v=1776331203 3-Piperidone hydrochloride | 61644-00-6 3-Piperidone hydrochloride|14263|61644-00-6 https://www.jk-sci.com/products/ts246cs-0063506 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/220528.png?v=1776458430 Methyl (S)-(-)-N-Z-aziridine-2-carboxylate | 104597-98-0 Methyl (S)-(-)-N-Z-aziridine-2-carboxylate|CS-0063506|104597-98-0 https://www.jk-sci.com/products/j5314057 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d53d0a1d62b20403cdfcef8412206a22.jpg?v=1776331063 3-Chloro-DL-phenylalanine | 1956-15-6 3-Chloro-DL-phenylalanine|14057|1956-15-6 https://www.jk-sci.com/products/j5314089 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/38337869cbeda32de5778fe54e9b921f.jpg?v=1776331105 Diethylamine | 109-89-7 Diethylamine|14089|109-89-7 https://www.jk-sci.com/products/j5314121 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0e731e08d308294cc59ef308589c9291.jpg?v=1776331155 (3-Formyl-1-indolyl)acetic acid | 138423-98-0 (3-Formyl-1-indolyl)acetic acid|14121|138423-98-0 https://www.jk-sci.com/products/j5314107 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8a86e5e7a9b00ebfe6e71bf849867a49.jpg?v=1776331133 2-(Boc-amino)ethanethiol | 67385-09-5 2-(Boc-amino)ethanethiol|14107|67385-09-5 https://www.jk-sci.com/products/ts246cs-0063580 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e5ec33f829fa05bf82397f140c8cf6e3.jpg?v=1776458439 Propargyl-PEG12-OH | 1036204-61-1 Propargyl-PEG12-OH|CS-0063580|1036204-61-1 https://www.jk-sci.com/products/ts246cs-0063801 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/94a3bdce91611e01a82b5a39cacbc5fc.jpg?v=1776458473 tert-Butyl 3-fluoroazetidine-1-carboxylate | 1255666-44-4 tert-Butyl 3-fluoroazetidine-1-carboxylate|CS-0063801|1255666-44-4 https://www.jk-sci.com/products/ts246cs-0063810 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/367750.png?v=1776458488 4-Hydroxy-7-methoxy-2H-chromen-2-one | 17575-15-4 4-Hydroxy-7-methoxy-2H-chromen-2-one|CS-0063810|17575-15-4 https://www.jk-sci.com/products/ts246cs-0063804 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/508f8decaad8cefc19a20095fe89d7b8.jpg?v=1776458479 6-(4-(Methylsulfonyl)phenyl)picolinaldehyde | 834884-84-3 6-(4-(Methylsulfonyl)phenyl)picolinaldehyde|CS-0063804|834884-84-3 https://www.jk-sci.com/products/j5314270 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5bb945489ffe5331a99c3138bd45a754.jpg?v=1776331220 Fmoc-2,3-dehydro-Valine | 198546-38-2 Fmoc-2,3-dehydro-Valine|14270|198546-38-2 https://www.jk-sci.com/products/j5314287 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c1d2df57983d50359d17cac74a2f949c.jpg?v=1776331244 DL-Homophenylalanine methyl ester hydrochloride | 85808-33-9 DL-Homophenylalanine methyl ester hydrochloride|14287|85808-33-9 https://www.jk-sci.com/products/j5314295 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9468e68605b3beccc4eae60698307015.jpg?v=1776331260 Na-Fmoc-Nim-benzyl-D-histidine | 2022956-32-5 Na-Fmoc-Nim-benzyl-D-histidine|14295|2022956-32-5 https://www.jk-sci.com/products/ts246cs-0063815 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7b57d77942ab6dc89a16e6d124758fc7.jpg?v=1776458504 4-Bromo-2,5-dichloropyridine | 1184917-16-5 4-Bromo-2,5-dichloropyridine|CS-0063815|1184917-16-5 https://www.jk-sci.com/products/j5314305 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/38aeda1ca36bf895574458508c4cc303.jpg?v=1776331282 Z-(3S)-1,2,3,4-tetrahydroisoquinolene-3-carboxylic acid | 79261-58-8 Z-(3S)-1,2,3,4-tetrahydroisoquinolene-3-carboxylic acid|14305|79261-58-8 https://www.jk-sci.com/products/ts246cs-0063824 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/235909.png?v=1776458526 3,4-Dihydro-2H-benzo[b][1,4]dioxepin-7-amine | 175136-34-2 3,4-Dihydro-2H-benzo[b][1,4]dioxepin-7-amine|CS-0063824|175136-34-2 https://www.jk-sci.com/products/ts246cs-0063839 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/612231.png?v=1776458551 2-(Bromomethyl)-1-fluoro-3-nitrobenzene | 1958-93-6 2-(Bromomethyl)-1-fluoro-3-nitrobenzene|CS-0063839|1958-93-6 https://www.jk-sci.com/products/ts246cs-0063880 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/610100.png?v=1776458607 5-Nitrobenzo[d]isothiazol-3-amine | 84387-89-3 5-Nitrobenzo[d]isothiazol-3-amine|CS-0063880|84387-89-3 https://www.jk-sci.com/products/j5309368 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/529c9bb389dd3a37e027ae9baa11f215.jpg?v=1776328816 Indol-3-yl-b-D-galactoside | 126787-65-3 Indol-3-yl-b-D-galactoside|09368|126787-65-3 https://www.jk-sci.com/products/j5307336 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c383ad420342f03013c3b96d92428460.jpg?v=1776327952 Fmoc-3,4-dimethoxy-D-phenylalanine | 218457-81-9 Fmoc-3,4-dimethoxy-D-phenylalanine|07336|218457-81-9 https://www.jk-sci.com/products/s57c4x-183825 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7a8e3c27e8aee71a613d0294145adec5.jpg?v=1776415277 Betahistine impurity 25 | 16927-00-7 Betahistine impurity 25|C4X-183825|16927-00-7 https://www.jk-sci.com/products/ts246cs-0063847 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/69b00d472652acbf65aa51856d5b104c.jpg?v=1776458569 7-Bromo-2-methylbenzo[d]thiazole | 110704-32-0 7-Bromo-2-methylbenzo[d]thiazole|CS-0063847|110704-32-0 https://www.jk-sci.com/products/ts246cs-0063893 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/381961.png?v=1776458634 4,4,4-Trifluoro-1-(4-methoxyphenyl)butane-1,3-dione | 15191-68-1 4,4,4-Trifluoro-1-(4-methoxyphenyl)butane-1,3-dione|CS-0063893|15191-68-1 https://www.jk-sci.com/products/ts246cs-0063897 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dd76e87501013a534ef787f98c84318d.jpg?v=1776458646 5-Hydroxynicotinaldehyde | 1060804-48-9 5-Hydroxynicotinaldehyde|CS-0063897|1060804-48-9 https://www.jk-sci.com/products/ts246cs-0063931 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f947ae7223346d72f9a954b5c2228dda.jpg?v=1776458699 2-(1-Methyl-1H-indol-3-yl)-2-oxoacetic acid | 51584-18-0 2-(1-Methyl-1H-indol-3-yl)-2-oxoacetic acid|CS-0063931|51584-18-0 https://www.jk-sci.com/products/j5311048 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cbc6afd3675c12af3b8a0b3dc3254e76.jpg?v=1776329262 Cyclo(-Gly-Pro) | 3705-27-9 Cyclo(-Gly-Pro)|11048|3705-27-9 https://www.jk-sci.com/products/ts246cs-0063940 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8ace19cb7359585da80f41b1d42a2a03.jpg?v=1776458727 tert-Butyl 6-chloro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-1-carboxylate | 1218790-24-9 tert-Butyl 6-chloro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-1-carboxylate|CS-0063940|1218790-24-9 https://www.jk-sci.com/products/s57c4x-18388 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/325218.png?v=1774896738 2-(2-Dimethylaminoethyl)pyridine | 6304-27-4 2-(2-Dimethylaminoethyl)pyridine|C4X-18388|6304-27-4 https://www.jk-sci.com/products/s57c4x-18394 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c109e8e82dd50c540625ca3cf1c4cd4f.jpg?v=1776415291 Bepotastine Impurity 4 | 210095-58-2 Bepotastine Impurity 4|C4X-18394|210095-58-2 https://www.jk-sci.com/products/j5311671 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/be47f62da7d2d7d11bde359de21ae690.jpg?v=1776329561 D-Phenylglycine ethyl ester hydrochloride | 17609-48-2 D-Phenylglycine ethyl ester hydrochloride|11671|17609-48-2 https://www.jk-sci.com/products/s57c4x-18386 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9422423e65e0f0371ea6461d6cfbbe62.jpg?v=1776415280 Betahistine EP Impurity C | 2095467-43-7 Betahistine EP Impurity C|C4X-18386|2095467-43-7 https://www.jk-sci.com/products/s57c4x-184010 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d0f3460265d79b6cfaf64aab0f9baa19.jpg?v=1776415294 Epinastine Impurity 10 | 41218-84-2 Epinastine Impurity 10|C4X-184010|41218-84-2 https://www.jk-sci.com/products/s57c4x-170814 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/283990_56d85da8-54ff-429a-86c2-c52806087986.png?v=1774904599 Naproxen EP Impurity N | 5111-65-9 Naproxen EP Impurity N|C4X-170814|5111-65-9 https://www.jk-sci.com/products/s57c4x-16797 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-172033 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/622934_3dcb3ffd-f29a-4479-a2b6-bff16e9dd506.png?v=1774723076 Oseltamivir EP Impurity C | 187227-45-8 Oseltamivir EP Impurity C|C4X-172033|187227-45-8 https://www.jk-sci.com/products/s57c4x-15542 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/153971_9c8f3f2b-75ff-485b-989b-a2a66209a704.png?v=1774726909 Balsalazide Impurity 2 | 7377-08-4 Balsalazide Impurity 2|C4X-15542|7377-08-4 https://www.jk-sci.com/products/s57c4x-172615 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/150f8f7f1252354cbfcfb5de4a79483e.jpg?v=1776414313 Pemetrexed Impurity 15 (Mixture of Diastereomers) | 193281-00-4 Pemetrexed Impurity 15 (Mixture of Diastereomers)|C4X-172615|193281-00-4 https://www.jk-sci.com/products/s57c4x-173218 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_da012cd0-90a1-4f76-be09-9457c18fd18d.png?v=1774671756 Piperacillin Impurity 18 Piperacillin Impurity 18|C4X-173218 https://www.jk-sci.com/products/s57c4x-175126 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_0c02ff1c-e2d4-4970-a572-cc0668f8f39d.png?v=1775080815 Ritonavir EP Impurity U Ritonavir EP Impurity U|C4X-175126 https://www.jk-sci.com/products/s57c4x-174411 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7130f3bc5f213efd11584775572e0e57.jpg?v=1776414437 Ramipril EP Impurity B | 295328-72-2 Ramipril EP Impurity B|C4X-174411|295328-72-2 https://www.jk-sci.com/products/s57c4x-177212 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-177257 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_52dfd14c-447c-4bc9-bb04-55596ef35dc0.png?v=1774722162 Trazodone impurity 57 Trazodone impurity 57|C4X-177257 https://www.jk-sci.com/products/s57c4x-17688 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/95273a319981b5fc64b06b350f421ddb.jpg?v=1776414614 Topiramate Impurity 8 | 912456-61-2 Topiramate Impurity 8|C4X-17688|912456-61-2 https://www.jk-sci.com/products/s57c4x-17602 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1c575f65b5f422be02293a9e000990ee.jpg?v=1776414552 Teneligliptin Impurity 2 | 401566-79-8 Teneligliptin Impurity 2|C4X-17602|401566-79-8 https://www.jk-sci.com/products/s57c4x-177827 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/534449_d1a5662a-1af5-49c6-b242-ff7158037010.png?v=1774668916 Verapamil Impurity 27 | 7306-46-9 Verapamil Impurity 27|C4X-177827|7306-46-9 https://www.jk-sci.com/products/s57c4x-177511 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cdf1a5439dfcdc0867e8456aca294df4.jpg?v=1776414694 Vancomycin EP Impurity J | 2416251-24-4 Vancomycin EP Impurity J|C4X-177511|2416251-24-4 https://www.jk-sci.com/products/s57c4x-177930 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/411467_f650766b-aa48-4f41-86a7-e154ca71475c.png?v=1774984839 Vitamin Impurity 30 | 342385-52-8 Vitamin Impurity 30|C4X-177930|342385-52-8 https://www.jk-sci.com/products/s57c4x-17885 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3d6ca07d17a89d8c901808a4f9b0408b.jpg?v=1776414766 Loperamide EP Impurity E | 1426322-82-8 Loperamide EP Impurity E|C4X-17885|1426322-82-8 https://www.jk-sci.com/products/s57c4x-179216 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-179273 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_64553209-2f8a-43aa-9fbd-2efee9e7f906.png?v=1775052752 Indobufen Impurity 73 Indobufen Impurity 73|C4X-179273 https://www.jk-sci.com/products/s57c4x-179412 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/384342_ce02f9fb-3319-40c2-913d-a7053390a460.png?v=1774723090 Fexofenadine Impurity 12 | 154477-54-0 Fexofenadine Impurity 12|C4X-179412|154477-54-0 https://www.jk-sci.com/products/s57c4x-17969 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ed38b2942844fc13dfe1d76d6e3b90af.jpg?v=1776414847 Cilnidipine Impurity 9 | 74936-76-8 Cilnidipine Impurity 9|C4X-17969|74936-76-8 https://www.jk-sci.com/products/s57c4x-179728 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_fc7072c5-2856-4953-8d7f-ba6a89afb0bb.png?v=1775072866 Tenofovir Alafenamide Impurity 28 Tenofovir Alafenamide Impurity 28|C4X-179728 https://www.jk-sci.com/products/s57c4x-17995 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1bb5acebea8d822bc4573124dbcfb6a6.jpg?v=1776414871 Vincamine impurity 5 | 51442-60-5 Vincamine impurity 5|C4X-17995|51442-60-5 https://www.jk-sci.com/products/s57c4x-18029 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/db065d5d6533549fb4f958af98f84c6e.jpg?v=1776414887 Miconazole EP Impurity I | 24169-00-4 Miconazole EP Impurity I|C4X-18029|24169-00-4 https://www.jk-sci.com/products/s57c4x-18034 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/237577_4c2b6e25-67d4-4d9a-b8a5-ee92ee0d0d25.png?v=1774668923 Trimetazidine EP Impurity D | 71989-96-3 Trimetazidine EP Impurity D|C4X-18034|71989-96-3 https://www.jk-sci.com/products/s57c4x-18095 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/233782_d30d0409-e07d-40b4-bb5b-4965546c1c16.png?v=1774725067 Adapalene Impurity 5 | 106685-41-0 Adapalene Impurity 5|C4X-18095|106685-41-0 https://www.jk-sci.com/products/s57c4x-181032 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_e21ceced-ce38-4236-a8fa-f4b85857a948.png?v=1774671773 Procaterol Impurity 32 Procaterol Impurity 32|C4X-181032 https://www.jk-sci.com/products/s57c4x-181125 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-181224 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-181151 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_8be8c375-53e2-4ce4-a3db-ffc2a411d9a7.png?v=1774988101 Pranoprofen Impurity 51 Pranoprofen Impurity 51|C4X-181151 https://www.jk-sci.com/products/s57c4x-181323 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/41943ded0a43702f78f316a792418769.jpg?v=1776414974 Butylphthalide Impurity 23 | 199736-94-2 Butylphthalide Impurity 23|C4X-181323|199736-94-2 https://www.jk-sci.com/products/s57c4x-181356 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4136bf7f19f086d0b603cafffb8feb52.jpg?v=1776414995 Butylphthalide Impurity 56 | 261783-87-3 Butylphthalide Impurity 56|C4X-181356|261783-87-3 https://www.jk-sci.com/products/s57c4x-181375 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8c696b5902ccaffa4e9628efd1f74266.jpg?v=1776415018 Butylphthalide Impurity 75 | 72917-31-8 Butylphthalide Impurity 75|C4X-181375|72917-31-8 https://www.jk-sci.com/products/s57c4x-181421 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-181484 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0f37349b66c30c719a904faa2a65f2b7.jpg?v=1776415063 Nintedanib Impurity 84 | 2770008-35-8 Nintedanib Impurity 84|C4X-181484|2770008-35-8 https://www.jk-sci.com/products/s57c4x-18146 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/08b3bd7ec992735658d097b152512e28.jpg?v=1776415048 Nintedanib Impurity 6 | 1139453-98-7 Nintedanib Impurity 6|C4X-18146|1139453-98-7 https://www.jk-sci.com/products/ts246cs-0060680 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/108717_f2b543cc-d767-4c27-ab5a-91987759095d.png?v=1776456431 3-Bromoimidazo[1,2-a]pyridine-6-carboxylic acid | 886362-00-1 3-Bromoimidazo[1,2-a]pyridine-6-carboxylic acid|CS-0060680|886362-00-1 https://www.jk-sci.com/products/j5311791 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b31698572dcd091b3ef2622a32a1c531.jpg?v=1776329723 Acetyl-a,b-dehydro-phenylalanine | 5469-45-4 Acetyl-a,b-dehydro-phenylalanine|11791|5469-45-4 https://www.jk-sci.com/products/ts246cs-0061614 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9e5246512a203526a114c4856bd6ba0e.jpg?v=1776457368 Ethyl 3-hydroxy-3-methylbutanoate | 18267-36-2 Ethyl 3-hydroxy-3-methylbutanoate|CS-0061614|18267-36-2 https://www.jk-sci.com/products/j5311897 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/729fec8a1a07e3f77afa181bb3506d3c.jpg?v=1776329872 Boc-L-tyrosinol | 83345-46-4 Boc-L-tyrosinol|11897|83345-46-4 https://www.jk-sci.com/products/ts246cs-0061827 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f8eb9b53f77d4b458787ff17d4141d88.jpg?v=1776457614 Methyl 2,4-dihydroxy-5-nitrobenzoate | 271261-71-3 Methyl 2,4-dihydroxy-5-nitrobenzoate|CS-0061827|271261-71-3 https://www.jk-sci.com/products/j5312102 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2e7ecbd5c389064749f648a3c2aa7692.jpg?v=1776330057 Sarcosine ethyl ester hydrochloride | 52605-49-9 Sarcosine ethyl ester hydrochloride|12102|52605-49-9 https://www.jk-sci.com/products/s57c4x-181921 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c9559c12be579e1ebc0addfb07b37939.jpg?v=1776415071 3-Methyl-10-ethyl-Deazaflavin | 59997-14-7 3-Methyl-10-ethyl-Deazaflavin|C4X-181921|59997-14-7 https://www.jk-sci.com/products/j5312226 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0a0772896873140e9a89db5a74759024.jpg?v=1776330156 Z-D-2-cyclohexylglycine | 69901-85-5 Z-D-2-cyclohexylglycine|12226|69901-85-5 https://www.jk-sci.com/products/ts246cs-0061925 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/544acbc689e89ebdd50eb260c596ba5e.jpg?v=1776457718 4-Bromo-2-methoxy-1-phenylmethoxybenzene | 63057-72-7 4-Bromo-2-methoxy-1-phenylmethoxybenzene|CS-0061925|63057-72-7 https://www.jk-sci.com/products/s57c4x-18203 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_d591e8fe-d5b3-4959-9522-05bfcc912fae.png?v=1774734517 Iomeprol Impurity 3 Iomeprol Impurity 3|C4X-18203 https://www.jk-sci.com/products/j5312381 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a1ec45ffc2fe806b1547aedfc6f50374.jpg?v=1776330278 D-Leucine ethyl ester hydrochloride | 73913-65-2 D-Leucine ethyl ester hydrochloride|12381|73913-65-2 https://www.jk-sci.com/products/j5312403 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fa31fa9fcc9f3531e1bbdd55362a0d95.jpg?v=1776330334 Na-Fmoc-Nb-allyloxycarbonyl-D-2,3-diaminopropionic acid | 178924-05-5 Na-Fmoc-Nb-allyloxycarbonyl-D-2,3-diaminopropionic acid|12403|178924-05-5 https://www.jk-sci.com/products/ts246cs-0062048 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/48f27e49264d56239fcce070262e6fad.jpg?v=1776457846 N-(5-Fluoro-4-methoxy-2-nitrophenyl)acetamide | 448-26-0 N-(5-Fluoro-4-methoxy-2-nitrophenyl)acetamide|CS-0062048|448-26-0 https://www.jk-sci.com/products/s57c4x-182123 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e66f7c1a77ab5d6307b343fa3a128855.jpg?v=1776415094 Polaprezinc Impurity 23 | 19532-95-7 Polaprezinc Impurity 23|C4X-182123|19532-95-7 https://www.jk-sci.com/products/j5312488 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/99b2018aa80557164516b1a553670d32.jpg?v=1776330392 Fmoc-glycine Rink amide AM resin Fmoc-glycine Rink amide AM resin|12488 https://www.jk-sci.com/products/j5312620 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ccdb5097575f8ee8cb3c500cb2146409.jpg?v=1776330458 Na-Fmoc-Nd-(4,4-dimethyl-2,6-dioxocyclohex-1-ylidene)-3-methylbutyl-L-ornithine | 1198321-33-3 Na-Fmoc-Nd-(4,4-dimethyl-2,6-dioxocyclohex-1-ylidene)-3-methylbutyl-L-ornithine|12620|1198321-33-3 https://www.jk-sci.com/products/j5312744 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/22c392c8f9060850d48145097581dbed.jpg?v=1776330540 Fmoc-L-b-homophenylalanine | 193954-28-8 Fmoc-L-b-homophenylalanine|12744|193954-28-8 https://www.jk-sci.com/products/ts246cs-0062249 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/94a44b4e2984c8870909c4eefee4f09d.jpg?v=1776458048 5-Chloro-2-fluoro-4-nitrophenol | 1500154-08-4 5-Chloro-2-fluoro-4-nitrophenol|CS-0062249|1500154-08-4 https://www.jk-sci.com/products/j5312771 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5b98a6abdea0281c3f8c2a1ff80a9e73.jpg?v=1776330619 Fmoc-L-b-homoisoleucine | 193954-27-7 Fmoc-L-b-homoisoleucine|12771|193954-27-7 https://www.jk-sci.com/products/s57c4x-182225 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_6706f96d-11e4-4fa5-9f81-243dec83e3f6.png?v=1774896722 Leuprorelin EP Impurity K Trifluoroacetic acid Leuprorelin EP Impurity K Trifluoroacetic acid|C4X-182225 https://www.jk-sci.com/products/ts246cs-0062192 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/547735_46ea4d77-ab6b-4f06-a175-af64f118c4db.png?v=1776457992 Fmoc-(R)-3-Amino-3-(4-chlorophenyl)-propionic acid | 479064-92-1 Fmoc-(R)-3-Amino-3-(4-chlorophenyl)-propionic acid|CS-0062192|479064-92-1 https://www.jk-sci.com/products/s57c4x-182218 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_2cc1e6f8-6526-4a58-a048-e8786984d86c.png?v=1775133454 Leuprorelin EP Impurity B Trifluoroacetic acid Leuprorelin EP Impurity B Trifluoroacetic acid|C4X-182218 https://www.jk-sci.com/products/j5312848 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3f8f072e7e907a6cbef516952181a5ef.jpg?v=1776330755 Fmoc-L-b-phenylalanine | 220498-02-2 Fmoc-L-b-phenylalanine|12848|220498-02-2 https://www.jk-sci.com/products/j5312788 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/31728d29415734995b2ce0a6f780ad1a.jpg?v=1776330670 Nb-Boc-L-b-homoglutamine | 336182-06-0 Nb-Boc-L-b-homoglutamine|12788|336182-06-0 https://www.jk-sci.com/products/s57c4x-182613 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bcb6fe2c0f5b9197756c8d1e9ec86b47.jpg?v=1776415137 Iguratimod Impurity 11 | 149456-98-4 Iguratimod Impurity 11|C4X-182613|149456-98-4 https://www.jk-sci.com/products/j5312972 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c8d6902eb513477de18146936e402a1a.jpg?v=1776330928 4-Hydroxy-2-methoxybenzaldehyde | 18278-34-7 4-Hydroxy-2-methoxybenzaldehyde|12972|18278-34-7 https://www.jk-sci.com/products/j5312907 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/85432fe477de0deaa338f035af523094.jpg?v=1776330844 N,N''-Di-Z-diethylenetriamine | 160256-75-7 N,N''-Di-Z-diethylenetriamine|12907|160256-75-7 https://www.jk-sci.com/products/j5314116 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c6f38c09c7c96bcfcbcd4bfbafd5d7d8.jpg?v=1776331142 (S)-1-Z-2-tert-butyl-3-methyl-4-imidazolidinone | 119906-49-9 (S)-1-Z-2-tert-butyl-3-methyl-4-imidazolidinone|14116|119906-49-9 https://www.jk-sci.com/products/j5312862 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f66100896eccd82eb249351c5a0d808a.jpg?v=1776330791 Boc-2-cyano-D-phenylalanine | 261380-28-3 Boc-2-cyano-D-phenylalanine|12862|261380-28-3 https://www.jk-sci.com/products/j5314015 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/15b914310096acca539c546cd951a2b4.jpg?v=1776331005 Z-L-tert-butyl-glycine dicyclohexylamine salt | 62965-37-1 Z-L-tert-butyl-glycine dicyclohexylamine salt|14015|62965-37-1 https://www.jk-sci.com/products/ts246cs-0063325 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/00d94dab2dd4c59027c156ee154e95bc.jpg?v=1776458390 DODMA | 104162-47-2 DODMA|CS-0063325|104162-47-2 https://www.jk-sci.com/products/s57c4x-182414 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_a19efa65-6ac5-412e-90b3-d392d32dabd1.png?v=1775156321 Cefcapene Impurity 14 Cefcapene Impurity 14|C4X-182414 https://www.jk-sci.com/products/j5314042 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/867ff6931812a419e70939e9113cebf6.jpg?v=1776331040 Boc-L-Phe(2-trifluoromethyl)-OH | 167993-21-7 Boc-L-Phe(2-trifluoromethyl)-OH|14042|167993-21-7 https://www.jk-sci.com/products/s57c4x-182230 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c292177eac2a4dbeaa05cd3bb505cfe5.jpg?v=1776415107 Leuprorelin EP impurity E TFA | 1926163-23-6 Leuprorelin EP impurity E TFA|C4X-182230|1926163-23-6 https://www.jk-sci.com/products/ts246cs-0063808 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/623414_9c49ee53-67e7-4c03-9002-70c933ebe3f3.png?v=1776458485 1-(2-Chloro-4-fluorophenyl)cyclopentanecarboxylic acid | 214263-01-1 1-(2-Chloro-4-fluorophenyl)cyclopentanecarboxylic acid|CS-0063808|214263-01-1 https://www.jk-sci.com/products/j5314267 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/55ee19d10f0d4011a0b2fd01b744f822.jpg?v=1776331213 a-Methyl-L-phenylalanine methyl ester hydrochloride | 64619-96-1 a-Methyl-L-phenylalanine methyl ester hydrochloride|14267|64619-96-1 https://www.jk-sci.com/products/j5314066 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/44a783b49f7b8da209ad8651a0148ea2.jpg?v=1776331077 Na-Boc-5-hydroxy-L-tryptophan | 119768-45-5 Na-Boc-5-hydroxy-L-tryptophan|14066|119768-45-5 https://www.jk-sci.com/products/s57c4x-182610 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c9c93dc218b22bf2c7f50144175c9715_f74c6ac2-366f-476b-85cd-b6c59f1c0964.jpg?v=1776415131 Iguratimod Impurity 10 | 2401-24-3 Iguratimod Impurity 10|C4X-182610|2401-24-3 https://www.jk-sci.com/products/s57c4x-182235 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_0b7a4e23-e91d-4b1b-883c-39edbe1431d0.png?v=1775052768 Leuprorelin EP Impurity K 2 Trifluoroacetic acid Leuprorelin EP Impurity K 2 Trifluoroacetic acid|C4X-182235 https://www.jk-sci.com/products/s57c4x-1824 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/446bde7cc8ed46b85eedc06d7ccd7e2b.jpg?v=1776415113 Cefcapene Pivoxil Hydrochloride Hydrate | 147816-24-8 Cefcapene Pivoxil Hydrochloride Hydrate|C4X-1824|147816-24-8 https://www.jk-sci.com/products/ts246cs-0063841 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d45de9faf761aabe92f08d4c7b1886fa.jpg?v=1776458557 4-Bromo-2-fluoro-5-nitrobenzaldehyde | 679839-39-5 4-Bromo-2-fluoro-5-nitrobenzaldehyde|CS-0063841|679839-39-5 https://www.jk-sci.com/products/ts246cs-0063594 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/393321_935b2720-94cf-44a5-9228-47b1f0d2bb80.png?v=1776458442 Anisylacetone | 104-20-1 Anisylacetone|CS-0063594|104-20-1 https://www.jk-sci.com/products/ts246cs-0062565 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/11f86143c4b69052dcb1d6471c7f531d.jpg?v=1776458167 Methyl 1-methyl-9H-pyrido[3,4-b]indole-3-carboxylate | 16641-82-0 Methyl 1-methyl-9H-pyrido[3,4-b]indole-3-carboxylate|CS-0062565|16641-82-0 https://www.jk-sci.com/products/j5312932 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3603ef461a9d0b259f1d27ab0fa443ad.jpg?v=1776330873 Di-Boc-cystamine | 67385-10-8 Di-Boc-cystamine|12932|67385-10-8 https://www.jk-sci.com/products/s57c4x-18245 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/05d696cff2fbef8ad1284ef5921d983b.jpg?v=1776415125 Cefcapene | 135889-00-8 Cefcapene|C4X-18245|135889-00-8 https://www.jk-sci.com/products/j5312996 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b7052fa45bedafcd9092584734438647.jpg?v=1776330971 2-Chlorotrityl chloride resin (1.0 - 1.2 mmol/g, 200 - 400 mesh) | 42074-68-0 2-Chlorotrityl chloride resin (1.0 - 1.2 mmol/g, 200 - 400 mesh)|12996|42074-68-0 https://www.jk-sci.com/products/ts246cs-0063823 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5a2e7ba467073bf27c63565b5a1144fe.jpg?v=1776458523 3-Methoxy-4-(trifluoromethyl)benzoic acid | 276861-63-3 3-Methoxy-4-(trifluoromethyl)benzoic acid|CS-0063823|276861-63-3 https://www.jk-sci.com/products/ts246cs-0063186 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4fb240cc2fe8868b4e2a02a90cd1e337.jpg?v=1776458321 3-Methyl-1,2,5-oxadiazole | 26178-14-3 3-Methyl-1,2,5-oxadiazole|CS-0063186|26178-14-3 https://www.jk-sci.com/products/j5314288 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e14384c57ec30c6b9554824afe125b4f.jpg?v=1776331247 2-Fluoro-L-phenylalanine methyl ester hydrochloride | 457654-69-2 2-Fluoro-L-phenylalanine methyl ester hydrochloride|14288|457654-69-2 https://www.jk-sci.com/products/j5314355 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d731dc520a2ba1af3a091906ced9d2da.jpg?v=1776331372 Clarithromycin | 81103-11-9 Clarithromycin|14355|81103-11-9 https://www.jk-sci.com/products/j5314333 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/85ce991829d66d73b5c16bebc5775a93.jpg?v=1776331345 1-Boc-3-piperidone | 98977-36-7 1-Boc-3-piperidone|14333|98977-36-7 https://www.jk-sci.com/products/ts246cs-0063888 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/212801.png?v=1776458620 2-(Methylthio)nicotinic acid | 74470-23-8 2-(Methylthio)nicotinic acid|CS-0063888|74470-23-8 https://www.jk-sci.com/products/j5314314 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/62b0d58e75531143ef8077c7db4c84ff.jpg?v=1776331298 Cefprozil | 121123-17-9 Cefprozil|14314|121123-17-9 https://www.jk-sci.com/products/j5314365 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8528ca7521ed763d97a0a652c8a9d03e.jpg?v=1776331395 2-Tetralone | 530-93-8 2-Tetralone|14365|530-93-8 https://www.jk-sci.com/products/j5314373 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/61921dc29463c853e9e39b32afdd0b89.jpg?v=1776331411 Diphenyl diselenide | 1666-13-3 Diphenyl diselenide|14373|1666-13-3 https://www.jk-sci.com/products/j5314402 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f6abf2f3a574dd76cd3affd5f7ab3793.jpg?v=1776331454 N-Boc-trans-1,4-cyclohexanediamine | 195314-59-1 N-Boc-trans-1,4-cyclohexanediamine|14402|195314-59-1 https://www.jk-sci.com/products/j5314419 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1fee52d901b0d08a84d731d93f88ff33.jpg?v=1776331480 L-Threonine methyl amide hydrochloride | 176543-45-6 L-Threonine methyl amide hydrochloride|14419|176543-45-6 https://www.jk-sci.com/products/s57c4x-182628 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/ts246cs-0063929 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4a49abfa9bf25c567377dc30a3e5da40.jpg?v=1776458696 2,2,2-Trifluoro-1-(pyridin-3-yl)ethanone | 33284-21-8 2,2,2-Trifluoro-1-(pyridin-3-yl)ethanone|CS-0063929|33284-21-8 https://www.jk-sci.com/products/j5314442 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9ca70b75da4f6d9b5031b8afd4cac6bf.jpg?v=1776331510 (S)-Pyrrolidine-2-carboxylic acid 2-butoxyethyl ester trifluroacetate | 1330286-57-1 (S)-Pyrrolidine-2-carboxylic acid 2-butoxyethyl ester trifluroacetate|14442|1330286-57-1 https://www.jk-sci.com/products/j5314452 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/524724041edf54166a3da80e382945d0.jpg?v=1776331539 (R)-Boc-4-amino-5-(3-indolyl)pentanoic acid | 959577-59-4 (R)-Boc-4-amino-5-(3-indolyl)pentanoic acid|14452|959577-59-4 https://www.jk-sci.com/products/s57c4x-182646 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_a39005a4-74f7-4e59-b06a-a17014d6a88a.png?v=1775141975 Iguratimod Impurity 46 Iguratimod Impurity 46|C4X-182646 https://www.jk-sci.com/products/ts246cs-0064123 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4c42d4d9dd76b9f2eda8adaf993dd97b.jpg?v=1776458810 5-Methyl-2-oxo-1,2-dihydropyridine-3-carbaldehyde | 1227575-72-5 5-Methyl-2-oxo-1,2-dihydropyridine-3-carbaldehyde|CS-0064123|1227575-72-5 https://www.jk-sci.com/products/ts246cs-0064215 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4fb6cd0e4af4d965939753d74ec43c2e.jpg?v=1776458819 (R)-N-(2-(4-Isopropyl-4,5-dihydrooxazol-2-yl)-6-methylphenyl)methanesulfonamide | 871360-40-6 (R)-N-(2-(4-Isopropyl-4,5-dihydrooxazol-2-yl)-6-methylphenyl)methanesulfonamide|CS-0064215|871360-40-6 https://www.jk-sci.com/products/ts246cs-0064489 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fa878ea5a31710110845fbaa44809f57.jpg?v=1776458842 DTBT | 165190-76-1 DTBT|CS-0064489|165190-76-1 https://www.jk-sci.com/products/j5314466 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3570617de9ba48bd3c71b13b7a38bee7.jpg?v=1776331581 (1R,2R)-Boc-aminocyclohexane carboxylic acid | 233661-54-6 (1R,2R)-Boc-aminocyclohexane carboxylic acid|14466|233661-54-6 https://www.jk-sci.com/products/j5314471 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b2cd2737ff848bc96c5754c18b17cc8b.jpg?v=1776331597 2'-(Fmoc-aminomethyl)biphenyl-2-carboxylic acid | 946716-21-8 2'-(Fmoc-aminomethyl)biphenyl-2-carboxylic acid|14471|946716-21-8 https://www.jk-sci.com/products/j5314475 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6259ad6bf5b2aa11059bdde0a0a21aab.jpg?v=1776331610 4-(Boc-4-aminophenyl)butanoic acid | 105300-90-1 4-(Boc-4-aminophenyl)butanoic acid|14475|105300-90-1 https://www.jk-sci.com/products/ts246cs-0064637 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_e194a4b3-c82f-4a20-a1a5-b526cf8a5c7f.png?v=1776458854 Dextran sulfate sodium salt (MW 5000) | 9011-18-1 Dextran sulfate sodium salt (MW 5000)|CS-0064637|9011-18-1 https://www.jk-sci.com/products/j5314477 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0ef5ba040eedc9ec26c780ac781530ef.jpg?v=1776331616 3-(Boc-4-aminophenyl)propionic acid | 149506-05-8 3-(Boc-4-aminophenyl)propionic acid|14477|149506-05-8 https://www.jk-sci.com/products/s57c4x-182657 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/eba5fe8ae2bc1d85346be753ef0ac761_d1cd706d-78df-45e6-9d67-7e9e0f0b14d4.jpg?v=1776415152 Iguratimod Impurity 57 | 149457-04-5 Iguratimod Impurity 57|C4X-182657|149457-04-5 https://www.jk-sci.com/products/ts246cs-0064676 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4d5a3d76a2ea32a4ab774953163057c6.jpg?v=1776458870 3-Chloro-5-fluoropyridin-2(1H)-one | 1214345-43-3 3-Chloro-5-fluoropyridin-2(1H)-one|CS-0064676|1214345-43-3 https://www.jk-sci.com/products/s57c4x-18271 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/518562_01723470-e946-4938-a5cd-e4270a76ec2e.png?v=1774670865 Methionine Impurity 1 | 1509-92-8 Methionine Impurity 1|C4X-18271|1509-92-8 https://www.jk-sci.com/products/j5314492 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/235b4bb43f47c0a2ab38fce64b6e23a5.jpg?v=1776331658 N,N'-bis-Fmoc-diaminoacetic acid | 668492-50-0 N,N'-bis-Fmoc-diaminoacetic acid|14492|668492-50-0 https://www.jk-sci.com/products/j5314498 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4f538ebaad1eefbd5741e4d4b38ae25c.jpg?v=1776331676 Boc-4-hydroxymethyl-D-phenylalanine dicyclohexyl ammonium salt | 1217713-25-1 Boc-4-hydroxymethyl-D-phenylalanine dicyclohexyl ammonium salt|14498|1217713-25-1 https://www.jk-sci.com/products/s57c4x-182915 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/91037b758da12334c0b35ee6a2d1befd.jpg?v=1776415158 Letrozole Impurity 15 | 74231-65-5 Letrozole Impurity 15|C4X-182915|74231-65-5 https://www.jk-sci.com/products/j5314713 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/51dd7320dc398a796ff7873fef1b7685.jpg?v=1776331703 4,7,10-Tri-(tert-butyloxycarbonylmethyl)-1,4,7,10-tetraazacyclododecan-1-yl-acetic acid | 137076-54-1 4,7,10-Tri-(tert-butyloxycarbonylmethyl)-1,4,7,10-tetraazacyclododecan-1-yl-acetic acid|14713|137076-54-1 https://www.jk-sci.com/products/s57c4x-182939 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/152497_0fc5fc39-7bef-49fe-a70c-30009dc037e0.png?v=1774903092 Letrozole Impurity 39 | 28188-41-2 Letrozole Impurity 39|C4X-182939|28188-41-2 https://www.jk-sci.com/products/j5314790 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/612bbf22da0e2e6cbac97f59d320bd45.jpg?v=1776331718 Boc-D-pyroglutamic acid | 160347-90-0 Boc-D-pyroglutamic acid|14790|160347-90-0 https://www.jk-sci.com/products/j5314933 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/49111f2db09bdd0cc22720ed3d185abf.jpg?v=1776331824 O-tert-Butyl-D-allo-threonine | 119323-52-3 O-tert-Butyl-D-allo-threonine|14933|119323-52-3 https://www.jk-sci.com/products/j5314831 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9507003fcd8eb20b27ce8e00a3066d94.jpg?v=1776331747 Fmoc-L-aspartic acid b-methyl ester | 145038-53-5 Fmoc-L-aspartic acid b-methyl ester|14831|145038-53-5 https://www.jk-sci.com/products/j5314859 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/13c4a637b174c99a88b8ae4605433ded.jpg?v=1776331788 Na-Fmoc-Na-methyl-Ne-Boc-L-lysine | 197632-76-1 Na-Fmoc-Na-methyl-Ne-Boc-L-lysine|14859|197632-76-1 https://www.jk-sci.com/products/ts246cs-0064745 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/74b48fc6c7c67c44416796e98fbdb0fd.jpg?v=1776458882 Tr-PEG2-OH | 105589-77-3 Tr-PEG2-OH|CS-0064745|105589-77-3 https://www.jk-sci.com/products/ts246cs-0064935 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/38af964451cdb5b7889daab699d59a13.jpg?v=1776458902 2-Chloro-5-(ethoxymethyl)pyridine | 871829-50-4 2-Chloro-5-(ethoxymethyl)pyridine|CS-0064935|871829-50-4 https://www.jk-sci.com/products/j5314938 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/198e6aeb0d62d211870c0880e9ed16e4.jpg?v=1776331830 D-Aspartic acid a-methyl ester | 65414-78-0 D-Aspartic acid a-methyl ester|14938|65414-78-0 https://www.jk-sci.com/products/j5314944 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c6724b21c7a6489194e4c5e300795bfe.jpg?v=1776331840 DL-Tyrosine methyl ester hydrochloride | 68697-61-0 DL-Tyrosine methyl ester hydrochloride|14944|68697-61-0 https://www.jk-sci.com/products/j5315015 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4aa26c0e4a1d661939baba29e8fe738e.jpg?v=1776331884 Boc-(R, S)-3-amino-2-phenylpropionic acid | 67098-56-0 Boc-(R, S)-3-amino-2-phenylpropionic acid|15015|67098-56-0 https://www.jk-sci.com/products/j5315007 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1e5654473667f5c570cdcdadb40219da.jpg?v=1776331862 Boc-(R)-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid | 117918-23-7 Boc-(R)-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid|15007|117918-23-7 https://www.jk-sci.com/products/ts246cs-0065167 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7ae770236445b22224308a4dc6113e46.jpg?v=1776458912 2-Oxo-2H-chromen-7-yl trifluoromethanesulfonate | 108530-10-5 2-Oxo-2H-chromen-7-yl trifluoromethanesulfonate|CS-0065167|108530-10-5 https://www.jk-sci.com/products/ts246cs-0065213 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/424984.png?v=1776458924 DAO-IN-2 | 39793-31-2 DAO-IN-2|CS-0065213|39793-31-2 https://www.jk-sci.com/products/s57c4x-183010 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bba6adfbb11b84910adcea8d26b656a8.jpg?v=1776415161 Lacosamide EP Impurity F (R-isomer) | 175481-38-6 Lacosamide EP Impurity F (R-isomer)|C4X-183010|175481-38-6 https://www.jk-sci.com/products/j5306450 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/00635283535ab2cb424e418e3086c208.jpg?v=1776326695 Z-D-serine benzyl ester | 53933-06-5 Z-D-serine benzyl ester|06450|53933-06-5 https://www.jk-sci.com/products/j5310628 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d43fcb5cba2bc8fe0cde980841871ce1.jpg?v=1776329098 4-Formyl-3-methoxy-phenoxyacetic acid | 84969-24-4 4-Formyl-3-methoxy-phenoxyacetic acid|10628|84969-24-4 https://www.jk-sci.com/products/ts246cs-0065296 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/275058.png?v=1776458933 Methyl 4-chloro-2-fluorobenzoate | 148893-72-5 Methyl 4-chloro-2-fluorobenzoate|CS-0065296|148893-72-5 https://www.jk-sci.com/products/j5311709 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c4593c87f35cea4921d3ca30ce4e085e.jpg?v=1776329620 Boc-1,2-diaminoethane hydrochloride | 79513-35-2 Boc-1,2-diaminoethane hydrochloride|11709|79513-35-2 https://www.jk-sci.com/products/ts246cs-0065483 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/575177.png?v=1776458951 5,6,7,8-Tetrahydro-2-naphthoic acid | 1131-63-1 5,6,7,8-Tetrahydro-2-naphthoic acid|CS-0065483|1131-63-1 https://www.jk-sci.com/products/j5312001 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bd11ded3f1423c96d3469aa4fe12ec00.jpg?v=1776329977 L-Aspartic acid b-benzyl ester a-tert-butyl ester hydrochloride | 94347-11-2 L-Aspartic acid b-benzyl ester a-tert-butyl ester hydrochloride|12001|94347-11-2 https://www.jk-sci.com/products/j5312362 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1c254b67b9ffd53d4c70d6df2ef71f3a.jpg?v=1776330244 Z-L-valine amide | 13139-28-1 Z-L-valine amide|12362|13139-28-1 https://www.jk-sci.com/products/j5312651 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b5520dbab243a7a074c3e535f5491df7.jpg?v=1776330503 Sieber linker | 3722-51-8 Sieber linker|12651|3722-51-8 https://www.jk-sci.com/products/j5312428 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5e90f8ae9d516c66dcc61da31f2353ca.jpg?v=1776330367 Z-b-cyclohexyl-L-alanine | 25341-42-8 Z-b-cyclohexyl-L-alanine|12428|25341-42-8 https://www.jk-sci.com/products/ts246cs-0065796 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0d15becf344ed5c9b87e7d97e8690a05.jpg?v=1776458962 m-PEG6-azide | 1043884-49-6 m-PEG6-azide|CS-0065796|1043884-49-6 https://www.jk-sci.com/products/j5312779 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9d6e623b8c7cb6b37d1f0c15d5a1f806.jpg?v=1776330645 Boc-L-b-homotryptophan | 229639-48-9 Boc-L-b-homotryptophan|12779|229639-48-9 https://www.jk-sci.com/products/j5312850 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/11ed59342ff7405a01f6daab77ba9c8a.jpg?v=1776330762 Nb-Fmoc-L-b-glutamine | 283160-18-9 Nb-Fmoc-L-b-glutamine|12850|283160-18-9 https://www.jk-sci.com/products/j5312913 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/791490b54cc18fb76331acc106c6480e.jpg?v=1776330857 N-[2-(Boc-amino)ethyl]glycine ethylester hydrochloride | 72648-80-7 N-[2-(Boc-amino)ethyl]glycine ethylester hydrochloride|12913|72648-80-7 https://www.jk-sci.com/products/j5312982 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/966a71951f806287e8832d414dfc557e.jpg?v=1776330944 4-(Diphenylhydroxymethyl)benzoic acid | 19672-49-2 4-(Diphenylhydroxymethyl)benzoic acid|12982|19672-49-2 https://www.jk-sci.com/products/j5314022 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/074fc2e1ab76ec244d219dc14973d89b.jpg?v=1776331012 L-Pyroglutamic acid ethyl ester | 7149-65-7 L-Pyroglutamic acid ethyl ester|14022|7149-65-7 https://www.jk-sci.com/products/j5314283 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d06da5df57bfab6dd163dfd2ca312cef.jpg?v=1776331237 (S)-Boc-b2-HomoAla-OH | 190897-47-3 (S)-Boc-b2-HomoAla-OH|14283|190897-47-3 https://www.jk-sci.com/products/j5314092 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/05a51ffc2c990b6c0a40bdb7957f53cc.jpg?v=1776331108 Ethyl trifluoroacetate | 383-63-1 Ethyl trifluoroacetate|14092|383-63-1 https://www.jk-sci.com/products/ts246cs-0067113 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/482039.png?v=1776459056 (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(2-cyanophenyl)propanoic acid | 401933-16-2 (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(2-cyanophenyl)propanoic acid|CS-0067113|401933-16-2 https://www.jk-sci.com/products/ts246cs-0067155 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a94e5b92027402328af8199ce939eec7.jpg?v=1776459106 4,6-Dichlorothieno[2,3-b]pyridine | 99429-80-8 4,6-Dichlorothieno[2,3-b]pyridine|CS-0067155|99429-80-8 https://www.jk-sci.com/products/j5314315 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f075e30b0cb4cfd2ed105edc68228079.jpg?v=1776331302 D-2-Cyclohexylglycine methyl ester hydrochloride | 35051-64-0 D-2-Cyclohexylglycine methyl ester hydrochloride|14315|35051-64-0 https://www.jk-sci.com/products/j5314362 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b17194398a4429641ea7fe419fac6a5e.jpg?v=1776331384 Na-Boc-L-2,4-diaminobutyric acid tert-butyl ester oxalate | 190447-69-9 Na-Boc-L-2,4-diaminobutyric acid tert-butyl ester oxalate|14362|190447-69-9 https://www.jk-sci.com/products/j5314391 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/84ceab99f18568b235a9d93a21af5084.jpg?v=1776331428 DL-Phe(2-Cl)-OH | 14091-11-3 DL-Phe(2-Cl)-OH|14391|14091-11-3 https://www.jk-sci.com/products/j5314440 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_bbdb0cf6-0816-4508-90be-deb142f2de13.png?v=1776331504 Fmoc-S-allyloxycarbonylamidomethyl-L-cysteine | 232953-09-2 Fmoc-S-allyloxycarbonylamidomethyl-L-cysteine|14440|232953-09-2 https://www.jk-sci.com/products/j5314459 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cbf327ac2d93a1ca68ad0809710b03be.jpg?v=1776331558 (R)-Boc-4-amino-6-methylthio-hexanoic acid | 959582-93-5 (R)-Boc-4-amino-6-methylthio-hexanoic acid|14459|959582-93-5 https://www.jk-sci.com/products/s57c4x-183050 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/51e1816d42584191c21182a3134754ee.jpg?v=1776415183 Lacosamide Impurity 50 | 2295925-92-5 Lacosamide Impurity 50|C4X-183050|2295925-92-5 https://www.jk-sci.com/products/s57c4x-18302 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e0aaee64051d892e07fef590042efd5e.jpg?v=1776415171 Lacosamide EP Impurity I(R-Isomer) | 2295925-90-3 Lacosamide EP Impurity I(R-Isomer)|C4X-18302|2295925-90-3 https://www.jk-sci.com/products/j5314474 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dc446977cc2d745277c992db61c785a3.jpg?v=1776331607 Fmoc-3-aminophenylacetic acid | 186320-08-1 Fmoc-3-aminophenylacetic acid|14474|186320-08-1 https://www.jk-sci.com/products/j5314502 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c807c8fc902e00274d736f35abc26da1.jpg?v=1776331689 2-Iodo-D-phenylalanine | 736184-44-4 2-Iodo-D-phenylalanine|14502|736184-44-4 https://www.jk-sci.com/products/s57c4x-183052 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_2e168c7f-da74-4a3b-b134-318681de2e93.png?v=1774962631 Lacosamide Impurity 52 Lacosamide Impurity 52|C4X-183052 https://www.jk-sci.com/products/ts246cs-0067288 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6390eab9af463b8bed06c47e55e4047a.jpg?v=1776459144 2,2-Dimethylpiperidin-4-ol hydrochloride | 1420671-18-6 2,2-Dimethylpiperidin-4-ol hydrochloride|CS-0067288|1420671-18-6 https://www.jk-sci.com/products/j5314478 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3ae8993819c553c50ca7e6cfa257c859.jpg?v=1776331619 3-(Fmoc-4-aminophenyl)propionic acid | 882847-07-6 3-(Fmoc-4-aminophenyl)propionic acid|14478|882847-07-6 https://www.jk-sci.com/products/ts246cs-0067390 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2a02fbd618e06f802f19dff29abab5e5.jpg?v=1776459170 3,4-Dimethoxy-2-nitrobenzaldehyde | 55149-84-3 3,4-Dimethoxy-2-nitrobenzaldehyde|CS-0067390|55149-84-3 https://www.jk-sci.com/products/j5314809 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5f4c81ea706fa22d2f062e77add51ab3.jpg?v=1776331729 D-a-Hydroxyisocaproic acid | 20312-37-2 D-a-Hydroxyisocaproic acid|14809|20312-37-2 https://www.jk-sci.com/products/j5315031 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b785890d31a0f4d7151ecd29e7dbd81c.jpg?v=1776331937 4-(Boc-aminomethyl)aniline | 94838-55-8 4-(Boc-aminomethyl)aniline|15031|94838-55-8 https://www.jk-sci.com/products/j5314929 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ff9d55f64e74ca3069cf8b62c8ba9b8c.jpg?v=1776331821 D-2-Aminobutyric acid tert-butyl ester hydrochloride | 313994-32-0 D-2-Aminobutyric acid tert-butyl ester hydrochloride|14929|313994-32-0 https://www.jk-sci.com/products/j5315026 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7e13cec4ae1d02e772ba5c41c0b3d3ff.jpg?v=1776331920 (S)-N-Boc-phenylalanine-nitrile | 99281-90-0 (S)-N-Boc-phenylalanine-nitrile|15026|99281-90-0 https://www.jk-sci.com/products/ts246cs-0061781 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5db89e6d317d15bc829b57e17d6e7d0f.jpg?v=1776457551 2-(Methylamino)pyridine-3-carbaldehyde | 32399-08-9 2-(Methylamino)pyridine-3-carbaldehyde|CS-0061781|32399-08-9 https://www.jk-sci.com/products/j5315010 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8b493fcf63e38468b4d6f12803be5184.jpg?v=1776331871 4-(Boc-amino)-1-methyl-1H-pyrrole-2-carboxylic acid | 77716-11-1 4-(Boc-amino)-1-methyl-1H-pyrrole-2-carboxylic acid|15010|77716-11-1 https://www.jk-sci.com/products/j5314940 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c375507d2fdd73aac604df8016dd3037.jpg?v=1776331837 H-D-Glu-OMe | 26566-13-2 H-D-Glu-OMe|14940|26566-13-2 https://www.jk-sci.com/products/ts246cs-0067414 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2c65bdeb816879a9392fcf7669f9d226.jpg?v=1776459188 3,4-Dihydrobenzofuro[2,3-c]pyridine | 97456-65-0 3,4-Dihydrobenzofuro[2,3-c]pyridine|CS-0067414|97456-65-0 https://www.jk-sci.com/products/j5315041 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7601e496c6c29ecb94eac6cedc623b3c.jpg?v=1776331965 Fmoc-(R)-4-amino-6-methylthiohexanoic acid | 1014018-33-7 Fmoc-(R)-4-amino-6-methylthiohexanoic acid|15041|1014018-33-7 https://www.jk-sci.com/products/ts246cs-0061968 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d94c4c0f60c5ce9991cb6466efaf6385.jpg?v=1776457780 4-(4-Methoxyphenyl)tetrahydro-2H-pyran-4-carbonitrile | 3648-78-0 4-(4-Methoxyphenyl)tetrahydro-2H-pyran-4-carbonitrile|CS-0061968|3648-78-0 https://www.jk-sci.com/products/j5315051 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/14174650ae1448d3dde6a80dc8bb9d4d.jpg?v=1776332001 Fmoc-(R)-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid | 753030-79-4 Fmoc-(R)-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid|15051|753030-79-4 https://www.jk-sci.com/products/j5315047 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0250a5b35ecbdeabd8cab5803431b8f3.jpg?v=1776331987 Fmoc-4-aminophenylacetic acid | 173690-53-4 Fmoc-4-aminophenylacetic acid|15047|173690-53-4 https://www.jk-sci.com/products/ts246cs-0062228 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/23c0bda8d7cc95697c0ebed74fef5f35.jpg?v=1776458030 (Sa,S)-DTB-Ph-SIPHOX | 1040274-12-1 (Sa,S)-DTB-Ph-SIPHOX|CS-0062228|1040274-12-1 https://www.jk-sci.com/products/j5315058 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8b3355c71f4fa580b852a9306a6c2ae4.jpg?v=1776332022 Fmoc-N-benzylglycine | 141743-13-7 Fmoc-N-benzylglycine|15058|141743-13-7 https://www.jk-sci.com/products/ts246cs-0063565 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0611e508c9715ffdb79142db6e6c27c5.jpg?v=1776458436 Biotin-PEG2-C6-azide | 1011268-29-3 Biotin-PEG2-C6-azide|CS-0063565|1011268-29-3 https://www.jk-sci.com/products/ts246cs-0063137 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5a8c49408692f106001e0e79769e8896.jpg?v=1776458264 4,4,5,5-Tetramethyl-2-(4-(naphthalen-2-yl)phenyl)-1,3,2-dioxaborolane | 1092390-02-7 4,4,5,5-Tetramethyl-2-(4-(naphthalen-2-yl)phenyl)-1,3,2-dioxaborolane|CS-0063137|1092390-02-7 https://www.jk-sci.com/products/j5315072 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/24a4fded7b635622c3019d887fdc43ca.jpg?v=1776332062 Fmoc-(1R,2R)-2-aminocyclopentane carboxylic acid | 359586-69-9 Fmoc-(1R,2R)-2-aminocyclopentane carboxylic acid|15072|359586-69-9 https://www.jk-sci.com/products/j5315061 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6e7c6ece9c9d063343ce1de51670e0ec.jpg?v=1776332031 Fmoc-N-(1-Boc-piperidin-4-yl)glycine | 269078-80-0 Fmoc-N-(1-Boc-piperidin-4-yl)glycine|15061|269078-80-0 https://www.jk-sci.com/products/ts246cs-0063857 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3e2599b3505375baceda4a4d368add06.jpg?v=1776458575 (2-Amino-5-fluorophenyl)boronic acid | 1040400-87-0 (2-Amino-5-fluorophenyl)boronic acid|CS-0063857|1040400-87-0 https://www.jk-sci.com/products/ts246cs-0063812 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/320158.png?v=1776458494 2-Tosylacetonitrile | 5697-44-9 2-Tosylacetonitrile|CS-0063812|5697-44-9 https://www.jk-sci.com/products/ts246cs-0063939 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cc6af3892e59ecd072b9da9d44b64c7c.jpg?v=1776458724 5-Fluoro-3-methyl-1H-indole | 392-13-2 5-Fluoro-3-methyl-1H-indole|CS-0063939|392-13-2 https://www.jk-sci.com/products/s57c4x-183211 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_7ad16fcf-640f-494f-b41f-d5edda77a30b.png?v=1774892827 Iopromide Impurity 11 Iopromide Impurity 11|C4X-183211 https://www.jk-sci.com/products/s57c4x-18326 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6af6139ffa8d12c04df92a99616008e7.jpg?v=1776415200 Iopromide EP Impurity F (Mixture of Diastereomers) | 154361-54-3 Iopromide EP Impurity F (Mixture of Diastereomers)|C4X-18326|154361-54-3 https://www.jk-sci.com/products/ts246cs-0064177 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2f233e1a55f2f863ddadcbffb914f53b.jpg?v=1776458816 Bis-propargyl-PEG6 | 400775-35-1 Bis-propargyl-PEG6|CS-0064177|400775-35-1 https://www.jk-sci.com/products/ts246cs-0064542 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a5415e4e6aa0ed3acd4cf396befb14c4.jpg?v=1776458845 (E)-1,3-Diphenylprop-2-en-1-ol | 62668-02-4 (E)-1,3-Diphenylprop-2-en-1-ol|CS-0064542|62668-02-4 https://www.jk-sci.com/products/ts246cs-0064958 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b680040223ac66d769e1121083645666.jpg?v=1776458906 (R)-6-(Propyl(2-(thiophen-2-yl)ethyl)amino)-5,6,7,8-tetrahydronaphthalen-1-ol (hydrochloride) | 125572-92-1 (R)-6-(Propyl(2-(thiophen-2-yl)ethyl)amino)-5,6,7,8-tetrahydronaphthalen-1-ol (hydrochloride)|CS-0064958|125572-92-1 https://www.jk-sci.com/products/ts246cs-0064717 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e558180527834300d8ae5b3a8a6b5c64.jpg?v=1776458873 1,4-Diazaspiro[5.5]undecan-3-one | 1547757-91-4 1,4-Diazaspiro[5.5]undecan-3-one|CS-0064717|1547757-91-4 https://www.jk-sci.com/products/s57c4x-183328 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-183349 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-183364 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_0e66eb0d-1967-4b78-8a34-f961807dcc14.png?v=1774664870 Peramivir Impurity 13 HCl Peramivir Impurity 13 HCl|C4X-183364 https://www.jk-sci.com/products/s57c4x-183377 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_a614d6e7-34a6-4b44-a87d-09be96b8c345.png?v=1775135505 Peramivir Impurity 15 Formate Peramivir Impurity 15 Formate|C4X-183377 https://www.jk-sci.com/products/s57c4x-183416 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-183511 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/ts246cs-0065266 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/72a1b2f0a3971b8140c75980b2ef7409.jpg?v=1776458930 (4-(3-Fluorophenoxy)phenyl)boronic acid | 1029438-36-5 (4-(3-Fluorophenoxy)phenyl)boronic acid|CS-0065266|1029438-36-5 https://www.jk-sci.com/products/ts246cs-0065515 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/468438.png?v=1776458957 2-Benzoylthiophene | 135-00-2 2-Benzoylthiophene|CS-0065515|135-00-2 https://www.jk-sci.com/products/s57c4x-18353 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/341943.png?v=1774988111 Hydroxychloroquine EP Impurity C | 4298-15-1 Hydroxychloroquine EP Impurity C|C4X-18353|4298-15-1 https://www.jk-sci.com/products/s57c4x-18356 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ca66a57d72927b5c07be40cb27a890c3.jpg?v=1776415239 Hydroxychloroquine EP Impurity F | 6281-58-9 Hydroxychloroquine EP Impurity F|C4X-18356|6281-58-9 https://www.jk-sci.com/products/ts246cs-0067350 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8a59c153b6f61d5eb145a8df17ceb371.jpg?v=1776459156 8-Bromo-4-hydroxyquinolin-2(1H)-one | 54675-27-3 8-Bromo-4-hydroxyquinolin-2(1H)-one|CS-0067350|54675-27-3 https://www.jk-sci.com/products/ts246cs-0067144 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/223163.png?v=1776459092 3-(Trifluoromethyl)cyclohexanone | 585-36-4 3-(Trifluoromethyl)cyclohexanone|CS-0067144|585-36-4 https://www.jk-sci.com/products/ts246cs-0067472 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ad83317173c039989bdea2539be40909.jpg?v=1776459205 tert-Butyl 1-(chloromethyl)-5-hydroxy-1H-benzo[e]indole-3(2H)-carboxylate | 122745-41-9 tert-Butyl 1-(chloromethyl)-5-hydroxy-1H-benzo[e]indole-3(2H)-carboxylate|CS-0067472|122745-41-9 https://www.jk-sci.com/products/ts246cs-0067515 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d75be15310bf3c34a83c6ad2fd05b518.jpg?v=1776459225 3,5-Dibromopyridazine | 1196155-35-7 3,5-Dibromopyridazine|CS-0067515|1196155-35-7 https://www.jk-sci.com/products/ts246cs-0067554 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/124396.png?v=1776459240 (3-Fluoro-5-(methoxycarbonyl)phenyl)boronic acid | 871329-62-3 (3-Fluoro-5-(methoxycarbonyl)phenyl)boronic acid|CS-0067554|871329-62-3 https://www.jk-sci.com/products/s57c4x-183574 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/254ed655afdccc6bc681bfb8432357c2.jpg?v=1776415245 Hydroxychloroquine Impurity 74 | 2411340-32-2 Hydroxychloroquine Impurity 74|C4X-183574|2411340-32-2 https://www.jk-sci.com/products/ts246cs-0067638 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/382228.png?v=1776459254 Nortriptyline | 72-69-5 Nortriptyline|CS-0067638|72-69-5 https://www.jk-sci.com/products/ts246cs-0067783 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3c30d9090823105e7a6d3c9ca1522acd.jpg?v=1776459289 Methyl (R)-2-((tert-butoxycarbonyl)amino)-3-(4-iodophenyl)propanoate | 210962-91-7 Methyl (R)-2-((tert-butoxycarbonyl)amino)-3-(4-iodophenyl)propanoate|CS-0067783|210962-91-7 https://www.jk-sci.com/products/ts246cs-0067759 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/256fab473a1cf37aeb5da456b76bca57.jpg?v=1776459275 2-Isopropylbenzo[d]thiazol-6-ol | 1216116-02-7 2-Isopropylbenzo[d]thiazol-6-ol|CS-0067759|1216116-02-7 https://www.jk-sci.com/products/ts246cs-0067747 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7757841a32098da65cfdf4d10ebd0ccb.jpg?v=1776459266 5-Bromo-4-ethoxy-2-((4-methoxybenzyl)oxy)pyridine | 1627857-11-7 5-Bromo-4-ethoxy-2-((4-methoxybenzyl)oxy)pyridine|CS-0067747|1627857-11-7 https://www.jk-sci.com/products/ts246cs-0067809 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/458498.png?v=1776459303 2-(pyridin-4-yl)benzaldehyde | 176526-00-4 2-(pyridin-4-yl)benzaldehyde|CS-0067809|176526-00-4 https://www.jk-sci.com/products/j5315077 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/045f8be08f64d838429e3adacb637b06.jpg?v=1776332076 Fmoc-1-amino-1-cyclobutane carboxylic acid | 885951-77-9 Fmoc-1-amino-1-cyclobutane carboxylic acid|15077|885951-77-9 https://www.jk-sci.com/products/ts246cs-0067819 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/381713.png?v=1776459312 2-Tosylacetic acid | 3937-96-0 2-Tosylacetic acid|CS-0067819|3937-96-0 https://www.jk-sci.com/products/ts246cs-0067857 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/137156.png?v=1776459347 Ethyl 3-(2-furyl)-3-oxopropanoate | 615-09-8 Ethyl 3-(2-furyl)-3-oxopropanoate|CS-0067857|615-09-8 https://www.jk-sci.com/products/ts246cs-0068013 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/525734.png?v=1776459430 4-Cyclohexylbenzene-1-sulfonyl chloride | 56354-57-5 4-Cyclohexylbenzene-1-sulfonyl chloride|CS-0068013|56354-57-5 https://www.jk-sci.com/products/ts246cs-0067890 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/38386c1b6e41804875262f900c7509ff.jpg?v=1776459366 (4-Benzylmorpholin-3-yl)methanol | 110167-20-9 (4-Benzylmorpholin-3-yl)methanol|CS-0067890|110167-20-9 https://www.jk-sci.com/products/ts246cs-0068579 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d0e3b66195492355a8841b286e68a686.jpg?v=1776459504 Propargyl-PEG2-NHBoc | 869310-84-9 Propargyl-PEG2-NHBoc|CS-0068579|869310-84-9 https://www.jk-sci.com/products/s57c4x-183621 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/ts246cs-0067985 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/470341.png?v=1776459413 2-Hydroxy-5-(trifluoromethoxy)benzoic acid | 129644-57-1 2-Hydroxy-5-(trifluoromethoxy)benzoic acid|CS-0067985|129644-57-1 https://www.jk-sci.com/products/ts246cs-0068117 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5505c6e489d519a8e9d01197c93a30fc.jpg?v=1776459465 9-Ethyladenine | 2715-68-6 9-Ethyladenine|CS-0068117|2715-68-6 https://www.jk-sci.com/products/ts246cs-0067900 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5392cb09d1204702897ed537037e3b41.jpg?v=1776459384 1-Bromo-2-(methylsulfonyl)benzene | 33951-33-6 1-Bromo-2-(methylsulfonyl)benzene|CS-0067900|33951-33-6 https://www.jk-sci.com/products/ts246cs-0068650 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/494597_3088e6e9-3750-4dfa-bf99-3f0fa3a77df2.png?v=1776459513 Disuccinimidyl sebacate | 23024-29-5 Disuccinimidyl sebacate|CS-0068650|23024-29-5 https://www.jk-sci.com/products/ts246cs-0068829 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d35880cf372408f2290267cd2c4e5556.jpg?v=1776459548 1-(1,1-Difluoroethyl)-3-nitrobenzene | 40788-04-3 1-(1,1-Difluoroethyl)-3-nitrobenzene|CS-0068829|40788-04-3 https://www.jk-sci.com/products/ts246cs-0068242 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f2628486b2f2ec8eed735e957bbda654.jpg?v=1776459484 1-Methoxy-4-((prop-2-yn-1-yloxy)methyl)benzene | 4039-83-2 1-Methoxy-4-((prop-2-yn-1-yloxy)methyl)benzene|CS-0068242|4039-83-2 https://www.jk-sci.com/products/s57c4x-18367 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e453a91f80180d349d00f4ef958eb3d4.jpg?v=1776415255 Torasemide Impurity 7 | 106944-62-1 Torasemide Impurity 7|C4X-18367|106944-62-1 https://www.jk-sci.com/products/ts246cs-0069003 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/331959.png?v=1776459571 9-Chloro-1,2,3,4-tetrahydroacridine | 5396-30-5 9-Chloro-1,2,3,4-tetrahydroacridine|CS-0069003|5396-30-5 https://www.jk-sci.com/products/ts246cs-0061892 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d3ef392979946ace2522b48be410fada.jpg?v=1776457675 2,6-dibromo-3-methoxypyridine | 79491-45-5 2,6-dibromo-3-methoxypyridine|CS-0061892|79491-45-5 https://www.jk-sci.com/products/ts246cs-0062417 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ebc1ca4507b3c4142d005ee067c3dba3.jpg?v=1776458111 6-bromocinnolin-4-ol | 876-88-0 6-bromocinnolin-4-ol|CS-0062417|876-88-0 https://www.jk-sci.com/products/s57c4x-183814 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_1cbfb7fb-42e0-471f-a281-923009d1f4b6.png?v=1775133463 Betahistine Impurity4 HCl Betahistine Impurity4 HCl|C4X-183814 https://www.jk-sci.com/products/ts246cs-0064315 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/315454.png?v=1776458822 H-Tyr-Tyr-OH | 1050-28-8 H-Tyr-Tyr-OH|CS-0064315|1050-28-8 https://www.jk-sci.com/products/s57c4x-183823 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/608883_658bfc8d-a3ec-46cb-86e0-e9a3a349afee.png?v=1774727801 Betahistine | 5638-76-6 Betahistine|C4X-183823|5638-76-6 https://www.jk-sci.com/products/ts246cs-0063803 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/305772_4da33c32-3e60-4cfa-a73c-4b2e7e3ead54.png?v=1776458476 Spinacine | 59981-63-4 Spinacine|CS-0063803|59981-63-4 https://www.jk-sci.com/products/s57c4x-18373 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/624a2b549681de9ebdd05cef28679a51.jpg?v=1776415259 Clemastine EP Impurity C | 59767-24-7 Clemastine EP Impurity C|C4X-18373|59767-24-7 https://www.jk-sci.com/products/ts246cs-0063894 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ad9430f0e42866306361c3d2ea673df5.jpg?v=1776458637 2-Bromo-1-methyl-1H-benzo[d]imidazole | 49572-60-3 2-Bromo-1-methyl-1H-benzo[d]imidazole|CS-0063894|49572-60-3 https://www.jk-sci.com/products/j5315087 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/150f47882838f918afc683d2e32cef2b.jpg?v=1776332107 Fmoc-1-amino-4,7,10-trioxa-13-tridecanamine hydrochloride | 868599-75-1 Fmoc-1-amino-4,7,10-trioxa-13-tridecanamine hydrochloride|15087|868599-75-1 https://www.jk-sci.com/products/s57c4x-18377 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b0d4464a2573d1c45ffec7893ddb238a.jpg?v=1776415268 Clemastine Impurity 7 Fumarate (R,S-isomer) | 61826-30-0 Clemastine Impurity 7 Fumarate (R,S-isomer)|C4X-18377|61826-30-0 https://www.jk-sci.com/products/ts246cs-0064750 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/216498.png?v=1776458889 (3aS,4S,6R,6aR)-6-Methoxy-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxole-4-carboxylic acid | 54622-95-6 (3aS,4S,6R,6aR)-6-Methoxy-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxole-4-carboxylic acid|CS-0064750|54622-95-6 https://www.jk-sci.com/products/ts246cs-0065322 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/285614_96300f36-8b64-4c07-9f1e-e3ca76a68ad6.png?v=1776458936 2-(4-Bromophenyl)benzo[d]thiazole | 19654-19-4 2-(4-Bromophenyl)benzo[d]thiazole|CS-0065322|19654-19-4 https://www.jk-sci.com/products/ts246cs-0067514 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e21ffce8d482831c16dc34c79c3fd91a.jpg?v=1776459222 (R)-1,3-Dimethylpiperazine dihydrochloride | 1152110-26-3 (R)-1,3-Dimethylpiperazine dihydrochloride|CS-0067514|1152110-26-3 https://www.jk-sci.com/products/ts246cs-0067163 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/412525.png?v=1776459112 (Iodomethyl)trimethylsilane | 4206-67-1 (Iodomethyl)trimethylsilane|CS-0067163|4206-67-1 https://www.jk-sci.com/products/ts246cs-0067756 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/607732_2f878983-ae51-452f-bd42-62997f488880.png?v=1776459272 Cyclopropyldiphenylsulfonium tetrafluoroborate | 33462-81-6 Cyclopropyldiphenylsulfonium tetrafluoroborate|CS-0067756|33462-81-6 https://www.jk-sci.com/products/ts246cs-0067585 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9bc7a2509be1c5f66caef49d8c490f1f.jpg?v=1776459252 Diethyl 2,4,6-trimethyl-1,4-dihydropyridine-3,5-dicarboxylate | 632-93-9 Diethyl 2,4,6-trimethyl-1,4-dihydropyridine-3,5-dicarboxylate|CS-0067585|632-93-9 https://www.jk-sci.com/products/ts246cs-0067789 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/43b53387725f8bd48654823c642a9da6.jpg?v=1776459292 1,3-Di-tert-butyl-1H-imidazol-3-ium tetrafluoroborate | 263163-17-3 1,3-Di-tert-butyl-1H-imidazol-3-ium tetrafluoroborate|CS-0067789|263163-17-3 https://www.jk-sci.com/products/ts246cs-0067851 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/113324.png?v=1776459341 1,3-Dichloro-5-(trifluoromethyl)benzene | 54773-20-5 1,3-Dichloro-5-(trifluoromethyl)benzene|CS-0067851|54773-20-5 https://www.jk-sci.com/products/ts246cs-0067986 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/219656.png?v=1776459415 2-Hydrazono-2,3-dihydro-1H-benzo[d]imidazole | 15108-18-6 2-Hydrazono-2,3-dihydro-1H-benzo[d]imidazole|CS-0067986|15108-18-6 https://www.jk-sci.com/products/ts246cs-0067895 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f475de59089167ccf1833ce04769457e.jpg?v=1776459378 2-Amino-5-bromo-3-methylbenzoic acid | 206548-13-2 2-Amino-5-bromo-3-methylbenzoic acid|CS-0067895|206548-13-2 https://www.jk-sci.com/products/s57c4x-18387 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2426322236878e2956cd9440bf32c655.jpg?v=1776415283 Betahistine EP Impurity C | 5452-87-9 Betahistine EP Impurity C|C4X-18387|5452-87-9 https://www.jk-sci.com/products/ts246cs-0068124 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/518232.png?v=1776459467 N,N-Dimethyl-L-valine | 2812-32-0 N,N-Dimethyl-L-valine|CS-0068124|2812-32-0 https://www.jk-sci.com/products/ts246cs-0068648 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/545930_a20942f0-2270-4f4b-a7ef-6ee24052e1c4.png?v=1776459510 1,4-D-Gulonolactone | 6322-07-2 1,4-D-Gulonolactone|CS-0068648|6322-07-2 https://www.jk-sci.com/products/s57c4x-18395 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_fdef3b52-982f-49b9-b8a1-68e1dfcd9729.png?v=1775072873 Bepotastine Impurity 5 Bepotastine Impurity 5|C4X-18395 https://www.jk-sci.com/products/s57c4x-184023 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6f4f250faf827f889b60279aa2816552.jpg?v=1776415302 Epinastine Impurity 23 | 439288-43-4 Epinastine Impurity 23|C4X-184023|439288-43-4 https://www.jk-sci.com/products/ts246cs-0069216 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c439d57d9d10095307549ea78e2def3b.jpg?v=1776459595 Antioxidant agent-4 | 50901-34-3 Antioxidant agent-4|CS-0069216|50901-34-3 https://www.jk-sci.com/products/ts246cs-0068999 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2d0b1a0ca85f36056674eca3f9ba4102.jpg?v=1776459568 Methyl 5-amino-3-bromo-2-methylbenzoate | 1374264-44-4 Methyl 5-amino-3-bromo-2-methylbenzoate|CS-0068999|1374264-44-4 https://www.jk-sci.com/products/s57c4x-184025 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/ts246cs-0069258 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0908461e604c5ea45b10ffd63bf02835.jpg?v=1776459604 tert-Butyl 7-(benzyloxy)-[1,2,4]triazolo[1,5-a]pyridine-8-carboxylate | 1262132-96-6 tert-Butyl 7-(benzyloxy)-[1,2,4]triazolo[1,5-a]pyridine-8-carboxylate|CS-0069258|1262132-96-6 https://www.jk-sci.com/products/ts246cs-0069571 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fef5f88ba4b51e4afa5155795f0046e5.jpg?v=1776459644 1-Isopropylcyclohexanol | 3552-01-0 1-Isopropylcyclohexanol|CS-0069571|3552-01-0 https://www.jk-sci.com/products/s57c4x-184031 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/89901bcd36793a0c9e98bbb786be33da.jpg?v=1776415305 Epinastine Impurity 31 | 143878-20-0 Epinastine Impurity 31|C4X-184031|143878-20-0 https://www.jk-sci.com/products/ts246cs-0069301 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cf6b4faca8fcb14939af464d9beffd1a.jpg?v=1776459618 Tert-butyl 2,4-dichloronicotinate | 1262132-92-2 Tert-butyl 2,4-dichloronicotinate|CS-0069301|1262132-92-2 https://www.jk-sci.com/products/s57c4x-184029 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_c154d443-7a35-44bd-8293-97bc7a865fb6.png?v=1775136772 Epinastine Impurity 29 Epinastine Impurity 29|C4X-184029 https://www.jk-sci.com/products/ts246cs-0069588 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/274246.png?v=1776459653 2,3-Dihydro-1H-inden-4-amine | 32202-61-2 2,3-Dihydro-1H-inden-4-amine|CS-0069588|32202-61-2 https://www.jk-sci.com/products/j5315096 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ecd413fde42f6e8f7d30b42c0af852dd.jpg?v=1776332136 Boc-2-nitro-D-phenylalanine | 478183-69-6 Boc-2-nitro-D-phenylalanine|15096|478183-69-6 https://www.jk-sci.com/products/ts246cs-0069646 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/213883.png?v=1776459667 tert-Butyl 4-methylpiperidine-1-carboxylate | 123387-50-8 tert-Butyl 4-methylpiperidine-1-carboxylate|CS-0069646|123387-50-8 https://www.jk-sci.com/products/ts246cs-0069832 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/234165.png?v=1776459701 1-Phenylpiperidin-4-ol | 117896-69-2 1-Phenylpiperidin-4-ol|CS-0069832|117896-69-2 https://www.jk-sci.com/products/ts246cs-0069731 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/568691.png?v=1776459684 1-Methyl-1H-benzo[d][1,2,3]triazole-5-carboxylic acid | 305381-67-3 1-Methyl-1H-benzo[d][1,2,3]triazole-5-carboxylic acid|CS-0069731|305381-67-3 https://www.jk-sci.com/products/ts246cs-0070268 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fc0ac61964382a28bfdec7b2f8a9bfb5.jpg?v=1776459759 3-Benzyl-3,8-diazabicyclo[3.2.1]octane dihydrochloride | 93428-54-7 3-Benzyl-3,8-diazabicyclo[3.2.1]octane dihydrochloride|CS-0070268|93428-54-7 https://www.jk-sci.com/products/ts246cs-0070395 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/15dde32dd9f96a1072645240fafc1938.jpg?v=1776459773 6-Morpholin-4-ylpyridazine-3-carboxylic acid | 914637-36-8 6-Morpholin-4-ylpyridazine-3-carboxylic acid|CS-0070395|914637-36-8 https://www.jk-sci.com/products/s57c4x-18406 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b97c97ee953fb99c0c9cbdabab270103.jpg?v=1776415311 Epinastine EP Impurity A | 706753-75-5 Epinastine EP Impurity A|C4X-18406|706753-75-5 https://www.jk-sci.com/products/s57c4x-184212 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/622273.png?v=1774736594 Paclitaxel EP Impurity L | 92950-39-5 Paclitaxel EP Impurity L|C4X-184212|92950-39-5 https://www.jk-sci.com/products/ts246cs-0070492 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e0eee369512922a21065d8b6e25c24cd.jpg?v=1776459779 Ethyl 3-amino-5-methoxy-1H-indole-2-carboxylate | 89607-80-7 Ethyl 3-amino-5-methoxy-1H-indole-2-carboxylate|CS-0070492|89607-80-7 https://www.jk-sci.com/products/ts246cs-0070750 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1f484d4d7a73f97d6e109409ec4f2c74.jpg?v=1776459820 4-(Methylamino)pyridine-2-carboxylic acid | 872696-24-7 4-(Methylamino)pyridine-2-carboxylic acid|CS-0070750|872696-24-7 https://www.jk-sci.com/products/ts246cs-0070624 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/323756_89dc746f-4097-44f2-b917-fc43a2d0ed7e.png?v=1776459806 Methyl 2-aminoimidazo[1,2-a]pyridine-6-carboxylate | 885272-05-9 Methyl 2-aminoimidazo[1,2-a]pyridine-6-carboxylate|CS-0070624|885272-05-9 https://www.jk-sci.com/products/s57c4x-184210 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/j5315099 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d2fa6015bae1fd32450723dcea8d2cc1.jpg?v=1776332146 Boc-3-iodo-D-phenylalanine | 478183-66-3 Boc-3-iodo-D-phenylalanine|15099|478183-66-3 https://www.jk-sci.com/products/ts246cs-0070916 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0a8b832e7e344c756fd00665c0422309.jpg?v=1776459841 1-[4-(2,4-Difluorobenzoyl)piperidin-1-yl]ethan-1-one | 84162-82-3 1-[4-(2,4-Difluorobenzoyl)piperidin-1-yl]ethan-1-one|CS-0070916|84162-82-3 https://www.jk-sci.com/products/s57c4x-184215 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/efff2f4898e928e8755f4f6a7c5e1745.jpg?v=1776415321 Paclitaxel EP Impurity A | 173101-54-7 Paclitaxel EP Impurity A|C4X-184215|173101-54-7 https://www.jk-sci.com/products/j5315104 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5301c0a128850176027639a53e3fb184.jpg?v=1776332163 Boc-3-bromo-L-phenylalanine | 82278-73-7 Boc-3-bromo-L-phenylalanine|15104|82278-73-7 https://www.jk-sci.com/products/ts246cs-0071058 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bfaa15e713d74be7ffe20207fb5821db.jpg?v=1776459879 (1-Benzyl-2-phenylethyl)amine hydrochloride | 7763-96-4 (1-Benzyl-2-phenylethyl)amine hydrochloride|CS-0071058|7763-96-4 https://www.jk-sci.com/products/ts246cs-0070986 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/488383.png?v=1776459861 1-(4-Chlorophenyl)cyclopentane-1-carboxylic acid | 80789-69-1 1-(4-Chlorophenyl)cyclopentane-1-carboxylic acid|CS-0070986|80789-69-1 https://www.jk-sci.com/products/s57c4x-184228 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-184219 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/df3f4ff4bc15e47038146feabee8964e.jpg?v=1776415327 2-Debenzoyl Paclitaxel 2-Pentanoate | 213767-22-7 2-Debenzoyl Paclitaxel 2-Pentanoate|C4X-184219|213767-22-7 https://www.jk-sci.com/products/s57c4x-184226 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-184246 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c5ddec6b25efa416e1536e2b33f0837d.jpg?v=1776415335 10-Deacetyl Cephalomannine | 76429-85-1 10-Deacetyl Cephalomannine|C4X-184246|76429-85-1 https://www.jk-sci.com/products/ts246cs-0071201 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/411341.png?v=1776459910 2-(3-Methoxyphenoxy)propanoic acid | 7309-52-6 2-(3-Methoxyphenoxy)propanoic acid|CS-0071201|7309-52-6 https://www.jk-sci.com/products/ts246cs-0071091 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/557815.png?v=1776459896 3-(1H-1,2,4-Triazol-1-yl)propanoic acid | 76686-84-5 3-(1H-1,2,4-Triazol-1-yl)propanoic acid|CS-0071091|76686-84-5 https://www.jk-sci.com/products/ts246cs-0071212 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/eca0ef70253072fcd238f22eac16493e.jpg?v=1776459916 4-(((4-(2-Chlorophenoxy)phenyl)sulfonamido)methyl)benzoic acid | 727689-54-5 4-(((4-(2-Chlorophenoxy)phenyl)sulfonamido)methyl)benzoic acid|CS-0071212|727689-54-5 https://www.jk-sci.com/products/s57c4x-184256 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6e024b8ab72ae241e02a3429e0ffcbbf.jpg?v=1776415338 19-Hydroxy Paclitaxel | 409319-62-6 19-Hydroxy Paclitaxel|C4X-184256|409319-62-6 https://www.jk-sci.com/products/ts246cs-0071234 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/484047.png?v=1776459924 2-(5-Fluoro-2-methyl-1H-indol-3-yl)acetic acid | 71987-67-2 2-(5-Fluoro-2-methyl-1H-indol-3-yl)acetic acid|CS-0071234|71987-67-2 https://www.jk-sci.com/products/ts246cs-0071363 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/431544.png?v=1776459942 8-Chloro-3-methyl-[1,2,4]triazolo[4,3-a]pyrazine | 68774-78-7 8-Chloro-3-methyl-[1,2,4]triazolo[4,3-a]pyrazine|CS-0071363|68774-78-7 https://www.jk-sci.com/products/ts246cs-0071388 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/64c77f94fb3974c79a5129a2fc39e14d.jpg?v=1776459947 8-Chloro-2-methylquinolin-4-amine | 68017-48-1 8-Chloro-2-methylquinolin-4-amine|CS-0071388|68017-48-1 https://www.jk-sci.com/products/s57c4x-18428 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c5f8ab78536d9e588e97b214661d7b9c.jpg?v=1776415341 Paclitaxel EP Impurity H | 78454-17-8 Paclitaxel EP Impurity H|C4X-18428|78454-17-8 https://www.jk-sci.com/products/s57c4x-1843 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/ts246cs-0062137 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ec1865e29c3612ecf847ea5624f81904.jpg?v=1776457923 7-Bromopyrido[3,2-d]pyrimidine-2,4(1H,3H)-dione | 1215074-37-5 7-Bromopyrido[3,2-d]pyrimidine-2,4(1H,3H)-dione|CS-0062137|1215074-37-5 https://www.jk-sci.com/products/ts246cs-0064650 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/285126.png?v=1776458857 Phenyl β-D-thiogalactopyranoside | 16758-34-2 Phenyl β-D-thiogalactopyranoside|CS-0064650|16758-34-2 https://www.jk-sci.com/products/ts246cs-0063830 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/406229_c5c9b3d0-cf81-44db-93a1-62ec8a7c6527.png?v=1776458539 5-Chlorobenzo[d]thiazole | 2786-51-8 5-Chlorobenzo[d]thiazole|CS-0063830|2786-51-8 https://www.jk-sci.com/products/ts246cs-0066693 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1d98563074e0a714ee7ec9f41d0e1ab6.jpg?v=1776459029 7-(Hydroxymethyl)-3,4-dihydroquinolin-2(1H)-one | 857272-53-8 7-(Hydroxymethyl)-3,4-dihydroquinolin-2(1H)-one|CS-0066693|857272-53-8 https://www.jk-sci.com/products/s57c4x-184414 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_8ad48f87-bc42-453b-87b2-943414d8a913.png?v=1775141978 Amphotericin B ChP Impurity E Amphotericin B ChP Impurity E|C4X-184414 https://www.jk-sci.com/products/s57c4x-18445 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/296e0a8fde09836ec925b8ee3d33b98f.jpg?v=1776415350 Amphotericin B EP Impurity B | 136135-57-4 Amphotericin B EP Impurity B|C4X-18445|136135-57-4 https://www.jk-sci.com/products/ts246cs-0067551 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/599549_59af8e44-1d07-44de-b028-6ebbf24a6ebe.png?v=1776459237 Isoxazol-5-ylmethanamine hydrochloride | 440099-32-1 Isoxazol-5-ylmethanamine hydrochloride|CS-0067551|440099-32-1 https://www.jk-sci.com/products/ts246cs-0067768 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/286343.png?v=1776459278 1-(2-bromoethyl)-4-methylbenzene | 6529-51-7 1-(2-bromoethyl)-4-methylbenzene|CS-0067768|6529-51-7 https://www.jk-sci.com/products/ts246cs-0067866 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/09ae8e20c434080ae05816debb0fc054.jpg?v=1776459352 (R,E)-3-(1-Methylpyrrolidin-2-yl)acrylic acid | 2143460-75-5 (R,E)-3-(1-Methylpyrrolidin-2-yl)acrylic acid|CS-0067866|2143460-75-5 https://www.jk-sci.com/products/s57c4x-18453 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ba2f01274d162b53ea6e917a93ff91da.jpg?v=1776415353 Neomycin C | 66-86-4 Neomycin C|C4X-18453|66-86-4 https://www.jk-sci.com/products/ts246cs-0068049 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1926b1d8c347e90fefe4d47241cf7e27.jpg?v=1776459456 2-Methyl-4,5,6,7-tetrahydro-2H-pyrazolo[4,3-c]pyridine dihydrochloride | 157327-45-2 2-Methyl-4,5,6,7-tetrahydro-2H-pyrazolo[4,3-c]pyridine dihydrochloride|CS-0068049|157327-45-2 https://www.jk-sci.com/products/j5315114 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e18d536420eb1852f97f0ad2a03ef86b.jpg?v=1776332195 Fmoc-3-iodo-D-phenylalanine | 478183-67-4 Fmoc-3-iodo-D-phenylalanine|15114|478183-67-4 https://www.jk-sci.com/products/j5315120 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/04217bd514e5b2c3ed1e36fc931fdbcb.jpg?v=1776332217 Fmoc-3-bromo-L-phenylalanine | 220497-48-3 Fmoc-3-bromo-L-phenylalanine|15120|220497-48-3 https://www.jk-sci.com/products/ts246cs-0069232 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f447988523e5d0ff8c3ae35d3411f14a.jpg?v=1776459600 4,4'-(1,4-Phenylenebis(sulfanediyl))dianiline | 17619-11-3 4,4'-(1,4-Phenylenebis(sulfanediyl))dianiline|CS-0069232|17619-11-3 https://www.jk-sci.com/products/ts246cs-0068660 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/415355.png?v=1776459516 Bismaleimide | 13676-54-5 Bismaleimide|CS-0068660|13676-54-5 https://www.jk-sci.com/products/s57c4x-18464 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/ts246cs-0069551 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/462912e8e80543fda2ecdb5b8b31cc7f.jpg?v=1776459638 (S)-3-Amino-2,2-dimethyl-4-oxoazetidin-1-yl hydrogen sulfate | 102507-49-3 (S)-3-Amino-2,2-dimethyl-4-oxoazetidin-1-yl hydrogen sulfate|CS-0069551|102507-49-3 https://www.jk-sci.com/products/ts246cs-0069824 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d2ed790f7c0005704f79566d9e9add68.jpg?v=1776459698 1-Phenyl-1H-pyrazol-3(2H)-one | 1008-79-3 1-Phenyl-1H-pyrazol-3(2H)-one|CS-0069824|1008-79-3 https://www.jk-sci.com/products/ts246cs-0069616 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/537746.png?v=1776459655 Tetrahydro-2H-pyran-3-amine hydrochloride | 675112-58-0 Tetrahydro-2H-pyran-3-amine hydrochloride|CS-0069616|675112-58-0 https://www.jk-sci.com/products/s57c4x-184734 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/111284_79cf84e3-dbe2-408f-aa6b-2e3641e7eae6.png?v=1774900773 Bosutinib Impurity 34 | 621-42-1 Bosutinib Impurity 34|C4X-184734|621-42-1 https://www.jk-sci.com/products/s57c4x-184811 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/495018.png?v=1775055870 Daclatasvir Impurity 11 | 25952-53-8 Daclatasvir Impurity 11|C4X-184811|25952-53-8 https://www.jk-sci.com/products/ts246cs-0070580 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a3fad2a51a85cccb70cf5e4caacde346.jpg?v=1776459800 2-(Methoxymethoxy)aniline | 88733-56-6 2-(Methoxymethoxy)aniline|CS-0070580|88733-56-6 https://www.jk-sci.com/products/ts246cs-0070379 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d10a062fdf6e6408f29457d5de36fb9d.jpg?v=1776459765 (4-Bromophenyl)[(tert-butoxycarbonyl)amino]acetic acid | 917925-71-4 (4-Bromophenyl)[(tert-butoxycarbonyl)amino]acetic acid|CS-0070379|917925-71-4 https://www.jk-sci.com/products/s57c4x-184913 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-184944 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9b4bdb9b5f7be663973220d55c7029cc.jpg?v=1776415378 Epinephrine Impurity 44 | 2947-00-4 Epinephrine Impurity 44|C4X-184944|2947-00-4 https://www.jk-sci.com/products/ts246cs-0071482 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/51bde466408028bd27dd27d10be5a7cf.jpg?v=1776459979 2-(3-Chlorophenyl)-2-methylpropanoic acid | 64798-35-2 2-(3-Chlorophenyl)-2-methylpropanoic acid|CS-0071482|64798-35-2 https://www.jk-sci.com/products/ts246cs-0071610 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f35f3631499f8b6feac1434832074508.jpg?v=1776460046 4-Methylbenzamide | 619-55-6 4-Methylbenzamide|CS-0071610|619-55-6 https://www.jk-sci.com/products/ts246cs-0071433 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8ea558b36cf7b317d8b6bcf13de7165c.jpg?v=1776459965 3-Hydroxy-2-methoxybenzaldehyde | 66495-88-3 3-Hydroxy-2-methoxybenzaldehyde|CS-0071433|66495-88-3 https://www.jk-sci.com/products/j5315146 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f93b98c6150585a4f79ed53cb39b54de.jpg?v=1776332273 Sodium Oxacillin | 7240-38-2 Sodium Oxacillin|15146|7240-38-2 https://www.jk-sci.com/products/ts246cs-0070880 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dc5df8f651af0ca5e6744d0b24074188.jpg?v=1776459839 (7-Bromo-2,3-dihydro-1-benzofuran-2-yl)methanol | 852110-51-1 (7-Bromo-2,3-dihydro-1-benzofuran-2-yl)methanol|CS-0070880|852110-51-1 https://www.jk-sci.com/products/s57c4x-184939 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/354558.png?v=1774965647 Epinephrine Hydrochloride | 55-31-2 Epinephrine Hydrochloride|C4X-184939|55-31-2 https://www.jk-sci.com/products/ts246cs-0071007 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4a129aaadc75b45a7681633a35b6fb18.jpg?v=1776459868 7-Fluoro-1,2,3,4-tetrahydroisoquinoline hydrochloride | 799274-06-9 7-Fluoro-1,2,3,4-tetrahydroisoquinoline hydrochloride|CS-0071007|799274-06-9 https://www.jk-sci.com/products/ts246cs-0071380 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/349476_2e6a1633-a486-4c60-a7fb-04ccc58c7c95.png?v=1776459944 4-(2,5-Dichlorophenyl)thiazol-2-amine | 68301-45-1 4-(2,5-Dichlorophenyl)thiazol-2-amine|CS-0071380|68301-45-1 https://www.jk-sci.com/products/s57c4x-18495 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bd1031a6e94c0b2ed8a42a61d4b458ed.jpg?v=1776415383 Adrenaline EP Impurity E HCl | 317351-39-6 Adrenaline EP Impurity E HCl|C4X-18495|317351-39-6 https://www.jk-sci.com/products/ts246cs-0071230 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4cd4d3ff586a25cc78482b4a79f6ea58.jpg?v=1776459921 2-Acetamido-3-sulfanylpropanoic acid | 7218-04-4 2-Acetamido-3-sulfanylpropanoic acid|CS-0071230|7218-04-4 https://www.jk-sci.com/products/ts246cs-0071679 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/149732.png?v=1776460060 2,8-Dimethyl-4-quinolinecarboxylic acid | 609822-00-6 2,8-Dimethyl-4-quinolinecarboxylic acid|CS-0071679|609822-00-6 https://www.jk-sci.com/products/ts246cs-0071574 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ff922f368ac92234908b8806f2450484.jpg?v=1776460026 [4-(1,3-Benzothiazol-2-yl)phenyl]amine | 6278-73-5 [4-(1,3-Benzothiazol-2-yl)phenyl]amine|CS-0071574|6278-73-5 https://www.jk-sci.com/products/s57c4x-184929 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/ts246cs-0071135 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/518386_eb810ce9-8ae1-4a55-a70b-0faacf4f08b1.png?v=1776459907 2-(2-Oxo-1,3-oxazolidin-3-yl)acetic acid | 75125-23-4 2-(2-Oxo-1,3-oxazolidin-3-yl)acetic acid|CS-0071135|75125-23-4 https://www.jk-sci.com/products/j5315141 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7ec7d7a857f9dce14a695f6a0883f977.jpg?v=1776332264 Tazobactam sodium salt | 89785-84-2 Tazobactam sodium salt|15141|89785-84-2 https://www.jk-sci.com/products/j5315134 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3eb83c71644b44f3d7c0ec1890d3fa0b.jpg?v=1776332247 Sodium carbonate | 497-19-8 Sodium carbonate|15134|497-19-8 https://www.jk-sci.com/products/j5315160 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7226743eeb9f5df2818469da56aa2165.jpg?v=1776332297 Cefonicid Sodium | 61270-78-8 Cefonicid Sodium|15160|61270-78-8 https://www.jk-sci.com/products/ts246cs-0071693 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5f3b896dd7becf4f1f47df7604d115e9.jpg?v=1776460071 ((4-(2-Methoxyphenoxy)phenyl)sulfonyl)glycine | 606944-93-8 ((4-(2-Methoxyphenoxy)phenyl)sulfonyl)glycine|CS-0071693|606944-93-8 https://www.jk-sci.com/products/j5315156 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/995e3627ec3fdc94458183093b337b1b.jpg?v=1776332290 Gatifloxacin | 112811-59-3 Gatifloxacin|15156|112811-59-3 https://www.jk-sci.com/products/s57c4x-184932 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5aab8af127ad2beed0be80e6b389cede.jpg?v=1776415366 Adrenaline EP Impurity E | 36467-25-1 Adrenaline EP Impurity E|C4X-184932|36467-25-1 https://www.jk-sci.com/products/s57c4x-184915 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/453669.png?v=1774900778 Deoxyepinephrine HCl | 62-32-8 Deoxyepinephrine HCl|C4X-184915|62-32-8 https://www.jk-sci.com/products/ts246cs-0071577 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/435999.png?v=1776460031 Ipidacrine | 62732-44-9 Ipidacrine|CS-0071577|62732-44-9 https://www.jk-sci.com/products/ts246cs-0071730 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/116654.png?v=1776460080 [(3-Methoxypyridin-2-yl)methyl]amine | 595560-87-5 [(3-Methoxypyridin-2-yl)methyl]amine|CS-0071730|595560-87-5 https://www.jk-sci.com/products/ts246cs-0071763 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/61b46d59b1d008d4001cd247f806b7d9.jpg?v=1776460089 [4,4'-Bithiazole]-2,2'-diamine | 58139-59-6 [4,4'-Bithiazole]-2,2'-diamine|CS-0071763|58139-59-6 https://www.jk-sci.com/products/ts246cs-0071856 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/485374.png?v=1776460109 5-Hydroxy-3,4-dihydroisoquinolin-1(2H)-one | 56469-02-4 5-Hydroxy-3,4-dihydroisoquinolin-1(2H)-one|CS-0071856|56469-02-4 https://www.jk-sci.com/products/ts246cs-0071941 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/547813.png?v=1776460125 Aniline hydrobromide | 542-11-0 Aniline hydrobromide|CS-0071941|542-11-0 https://www.jk-sci.com/products/j5315175 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bf841e10d9d7cf4bcfdbe525c0b5ea48.jpg?v=1776332319 Triethyl 2-chloro-2-phosphonoacetate | 7071-12-7 Triethyl 2-chloro-2-phosphonoacetate|15175|7071-12-7 https://www.jk-sci.com/products/ts246cs-0071992 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/490867.png?v=1776460147 Coumarin-3-carboxylic Acid | 531-81-7 Coumarin-3-carboxylic Acid|CS-0071992|531-81-7 https://www.jk-sci.com/products/ts246cs-0071999 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/212642.png?v=1776460153 4'-Methoxy-[1,1'-biphenyl]-4-carbaldehyde | 52988-34-8 4'-Methoxy-[1,1'-biphenyl]-4-carbaldehyde|CS-0071999|52988-34-8 https://www.jk-sci.com/products/ts246cs-0072094 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7698780fe5213b39f23fc09207ceac52.jpg?v=1776460173 6-Chloro-3-oxo-2,3-dihydropyridazine-4-carboxylic acid | 50681-26-0 6-Chloro-3-oxo-2,3-dihydropyridazine-4-carboxylic acid|CS-0072094|50681-26-0 https://www.jk-sci.com/products/j5315201 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d51272ccdb4415a749796e40b9feada6.jpg?v=1776332327 Boc-D-b-homophenylalanine | 101555-61-7 Boc-D-b-homophenylalanine|15201|101555-61-7 https://www.jk-sci.com/products/ts246cs-0072200 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1521d86684600184869585d84f53db75.jpg?v=1776460222 4-(Aminosulfonyl)benzenesulfonyl chloride | 46249-41-6 4-(Aminosulfonyl)benzenesulfonyl chloride|CS-0072200|46249-41-6 https://www.jk-sci.com/products/ts246cs-0072101 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/65996b40f47bee24ec2bbc164e682af0.jpg?v=1776460185 5-Chloro-3-methyl-1-benzothiophene-2-carboxylic acid | 50451-84-8 5-Chloro-3-methyl-1-benzothiophene-2-carboxylic acid|CS-0072101|50451-84-8 https://www.jk-sci.com/products/ts246cs-0072097 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/015441c2db00f7ad73ed2561c13cb855.jpg?v=1776460179 4-(Pyridin-2-ylmethoxy)benzoic acid | 50596-36-6 4-(Pyridin-2-ylmethoxy)benzoic acid|CS-0072097|50596-36-6 https://www.jk-sci.com/products/ts246cs-0072166 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/438553.png?v=1776460217 Quipazine | 4774-24-7 Quipazine|CS-0072166|4774-24-7 https://www.jk-sci.com/products/j5315212 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/448aee1b420e671388b72343dc19411b.jpg?v=1776332349 D-b-Homophenylalanine hydrochloride | 145149-50-4 D-b-Homophenylalanine hydrochloride|15212|145149-50-4 https://www.jk-sci.com/products/s57c4x-184955 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b4be3175b75d483fad3d1f1590626a29.jpg?v=1776415386 Epinephrine /Adrenaline Impurity 55 | 60912-82-5 Epinephrine /Adrenaline Impurity 55|C4X-184955|60912-82-5 https://www.jk-sci.com/products/s57c4x-184958 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8330b1ca16ea8fa3e2e0c683ad7fc7fb.jpg?v=1776415389 Adrenalin-Methylether HCl | 74571-90-7 Adrenalin-Methylether HCl|C4X-184958|74571-90-7 https://www.jk-sci.com/products/ts246cs-0072326 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2e7f6bc038e4792f5ff3b4b0fe343ac9.jpg?v=1776460266 3-Benzothiazol-2-yl-phenylamine | 41230-21-1 3-Benzothiazol-2-yl-phenylamine|CS-0072326|41230-21-1 https://www.jk-sci.com/products/ts246cs-0072304 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/451890.png?v=1776460258 1-Ethynyl-4-phenoxybenzene | 4200-06-0 1-Ethynyl-4-phenoxybenzene|CS-0072304|4200-06-0 https://www.jk-sci.com/products/ts246cs-0072387 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ccec86660db59bf19e259e2bd30f3d7c.jpg?v=1776460294 2,3-Dihydro-1-benzofuran-3-carboxylic acid | 39891-55-9 2,3-Dihydro-1-benzofuran-3-carboxylic acid|CS-0072387|39891-55-9 https://www.jk-sci.com/products/ts246cs-0072411 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a1547dc65e0713fa040ae9111d627fef.jpg?v=1776460303 2,2,2-Trifluoro-1-(pyridin-4-yl)ethan-1-ol | 394203-58-8 2,2,2-Trifluoro-1-(pyridin-4-yl)ethan-1-ol|CS-0072411|394203-58-8 https://www.jk-sci.com/products/j5315222 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c84106fef1f6aa5f91b9707bbd28567d.jpg?v=1776332378 D-b-Homoserine | 16504-57-7 D-b-Homoserine|15222|16504-57-7 https://www.jk-sci.com/products/j5315232 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a9291cf05ef643fef9ddb343c27649bb.jpg?v=1776332407 Boc-L-a-(5-bromothienyl)-L-alanine | 190319-95-0 Boc-L-a-(5-bromothienyl)-L-alanine|15232|190319-95-0 https://www.jk-sci.com/products/ts246cs-0064039 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/84d8b56caa752c170ea08bff4a3d12ef.jpg?v=1776458746 (S,S)-Me-Pybox | 189014-95-7 (S,S)-Me-Pybox|CS-0064039|189014-95-7 https://www.jk-sci.com/products/ts246cs-0061297 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/944d6ab500bb80cb20c6932ffa24cde6.jpg?v=1776457115 Fmoc-(S)-3-Amino-4-(4-methyl-phenyl)-butyric acid | 270062-97-0 Fmoc-(S)-3-Amino-4-(4-methyl-phenyl)-butyric acid|CS-0061297|270062-97-0 https://www.jk-sci.com/products/ts246cs-0067413 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c9fbef22f581099af8d4d4364f115126.jpg?v=1776459185 N-(2-Aminoethyl)methanesulfonamide hydrochloride | 202197-61-3 N-(2-Aminoethyl)methanesulfonamide hydrochloride|CS-0067413|202197-61-3 https://www.jk-sci.com/products/ts246cs-0067818 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/95f5069e9f3185b22cb5affaef757ba7.jpg?v=1776459309 Methyl 2-amino-4-(trifluoromethyl)thiophene-3-carboxylate | 1094619-74-5 Methyl 2-amino-4-(trifluoromethyl)thiophene-3-carboxylate|CS-0067818|1094619-74-5 https://www.jk-sci.com/products/s57c4x-184960 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_9735a390-e3cf-430a-8d65-9b016b65344d.png?v=1774667901 Epinephrine /Adrenaline Impurity 60 Epinephrine /Adrenaline Impurity 60|C4X-184960 https://www.jk-sci.com/products/ts246cs-0068252 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/645d5140c02c510340ebca9c6d020fed.jpg?v=1776459487 6,8-Dichloropyrido[2,3-b]pyrazine | 1283075-60-4 6,8-Dichloropyrido[2,3-b]pyrazine|CS-0068252|1283075-60-4 https://www.jk-sci.com/products/ts246cs-0069283 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cfad2910ab0819a2b00c34a04db02858.jpg?v=1776459609 6,7-Dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-ol | 1557178-09-2 6,7-Dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-ol|CS-0069283|1557178-09-2 https://www.jk-sci.com/products/j5315237 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6b099b9b09db8fcfdd1402b9691045b2.jpg?v=1776332424 Boc-L-b-homoisoleucine | 218608-82-3 Boc-L-b-homoisoleucine|15237|218608-82-3 https://www.jk-sci.com/products/s57c4x-184963 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_d4418cf6-b7f1-46b2-a517-9cb99364201c.png?v=1774673875 Epinephrine Impurity 63 HCl Epinephrine Impurity 63 HCl|C4X-184963 https://www.jk-sci.com/products/s57c4x-184982 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_7f0fe72c-6da6-4e47-a487-fa930ff802b5.png?v=1774640819 Epinephrine Impurity 82 Epinephrine Impurity 82|C4X-184982 https://www.jk-sci.com/products/ts246cs-0070465 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/920932_70d500c7-fa91-4692-9548-6aa9c734f5cf.png?v=1776459776 2-Chloro-4-(trifluoromethyl)benzo[d]thiazole | 898748-15-7 2-Chloro-4-(trifluoromethyl)benzo[d]thiazole|CS-0070465|898748-15-7 https://www.jk-sci.com/products/ts246cs-0069674 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/402006_a09e9f87-f9e5-4b75-8f0a-a538e55cc340.png?v=1776459675 (R)-tert-Butyl (1-benzylpiperidin-3-yl)carbamate | 454713-13-4 (R)-tert-Butyl (1-benzylpiperidin-3-yl)carbamate|CS-0069674|454713-13-4 https://www.jk-sci.com/products/s57c4x-185011 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_fd80eb85-cab4-4a86-8478-4fdd1bd76047.png?v=1775069480 Atracurium EP Impurity Q Atracurium EP Impurity Q|C4X-185011 https://www.jk-sci.com/products/ts246cs-0070976 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/457070_4a89d13b-8f79-4deb-896b-b76b04b09b36.png?v=1776459858 4-Chloro-6-ethylthieno[2,3-d]pyrimidine | 81136-42-7 4-Chloro-6-ethylthieno[2,3-d]pyrimidine|CS-0070976|81136-42-7 https://www.jk-sci.com/products/ts246cs-0071207 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0a1a627ffdfd5de0adf9e969c849063c.jpg?v=1776459913 2-Amino-4-tert-butyl-3-furonitrile | 72965-46-9 2-Amino-4-tert-butyl-3-furonitrile|CS-0071207|72965-46-9 https://www.jk-sci.com/products/j5315240 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/367348c97dd687401cf121de9c9b8468.jpg?v=1776332434 Boc-2-chloro-D-b-homophenylalanine | 218608-93-6 Boc-2-chloro-D-b-homophenylalanine|15240|218608-93-6 https://www.jk-sci.com/products/s57c4x-185013 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_63db701c-0c8c-47b9-9425-7685f8b822ee.png?v=1775141983 Atracurium EP Impurity N Atracurium EP Impurity N|C4X-185013 https://www.jk-sci.com/products/j5315244 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/231177aaeed0d1a526d9127e37f3c391.jpg?v=1776332448 Boc-2-fluoro-D-b-homophenylalanine | 218608-98-1 Boc-2-fluoro-D-b-homophenylalanine|15244|218608-98-1 https://www.jk-sci.com/products/ts246cs-0071522 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/504537.png?v=1776459996 9H-Carbazol-3-ylamine | 6377-12-4 9H-Carbazol-3-ylamine|CS-0071522|6377-12-4 https://www.jk-sci.com/products/ts246cs-0071426 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4973b2592466bdc1d5ad0d7d7d037dc4.jpg?v=1776459962 Methyl 5-(2-fluorophenyl)isoxazole-3-carboxylate | 668970-74-9 Methyl 5-(2-fluorophenyl)isoxazole-3-carboxylate|CS-0071426|668970-74-9 https://www.jk-sci.com/products/s57c4x-185017 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_47362ac6-b1de-454c-902b-2093981d81c3.png?v=1774725081 Cisatracurium EP Impurity K Besylate Cisatracurium EP Impurity K Besylate|C4X-185017 https://www.jk-sci.com/products/s57c4x-185036 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/521980.png?v=1775063110 Atracurium EP Impurity G (DL-Laudanosine) | 1699-51-0 Atracurium EP Impurity G (DL-Laudanosine)|C4X-185036|1699-51-0 https://www.jk-sci.com/products/ts246cs-0071584 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e0019dd0f2f7ea62ecc2f3527cc3343b.jpg?v=1776460040 Methyl 2-chloroquinoline-4-carboxylate | 62482-26-2 Methyl 2-chloroquinoline-4-carboxylate|CS-0071584|62482-26-2 https://www.jk-sci.com/products/s57c4x-18505 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c149003943a8c1ba25967dc18f86cd4f.jpg?v=1776415407 Atracurium EP Impurity C | 85-63-2 Atracurium EP Impurity C|C4X-18505|85-63-2 https://www.jk-sci.com/products/ts246cs-0071757 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/226301_c8867057-e701-444a-a668-c43945b14ee2.png?v=1776460083 3-Acetyl-6-chloro-4-phenyl-1H-quinolin-2-one | 58375-08-9 3-Acetyl-6-chloro-4-phenyl-1H-quinolin-2-one|CS-0071757|58375-08-9 https://www.jk-sci.com/products/ts246cs-0071689 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/302576.png?v=1776460066 2,3,5,6-Tetramethylbenzenesulfonyl chloride | 60706-63-0 2,3,5,6-Tetramethylbenzenesulfonyl chloride|CS-0071689|60706-63-0 https://www.jk-sci.com/products/j5315253 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/763d30b2bd19e87a6aedb4675ca1ee60.jpg?v=1776332471 Fmoc-L-a-(5-bromothienyl)alanine | 220497-50-7 Fmoc-L-a-(5-bromothienyl)alanine|15253|220497-50-7 https://www.jk-sci.com/products/ts246cs-0071885 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/601994c645bcef4572f5db146f1a7daf.jpg?v=1776460119 4-Pyridin-3-ylpyrrolidin-2-one | 55656-99-0 4-Pyridin-3-ylpyrrolidin-2-one|CS-0071885|55656-99-0 https://www.jk-sci.com/products/ts246cs-0071993 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/571385_13dbd26d-7a49-44b5-b9ac-cc1e792ad038.png?v=1776460150 N-(4-Acetylphenyl)methanesulfonamide | 5317-89-5 N-(4-Acetylphenyl)methanesulfonamide|CS-0071993|5317-89-5 https://www.jk-sci.com/products/ts246cs-0072096 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/546484_af07c79e-037d-4abe-b620-7ce12ad74695.png?v=1776460176 6-(4-Bromophenyl)pyridazin-3-ol | 50636-57-2 6-(4-Bromophenyl)pyridazin-3-ol|CS-0072096|50636-57-2 https://www.jk-sci.com/products/ts246cs-0072112 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/617eed4a1ab6b20145a56c749507b733.jpg?v=1776460191 2-Chloro-5,6,7,8-tetrahydroquinolin-5-ol | 501917-22-2 2-Chloro-5,6,7,8-tetrahydroquinolin-5-ol|CS-0072112|501917-22-2 https://www.jk-sci.com/products/s57c4x-185066 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3b24e61e40d86f00fec07c0581853b27.jpg?v=1776415414 Atracurium Impurity 66 | 91950-41-3 Atracurium Impurity 66|C4X-185066|91950-41-3 https://www.jk-sci.com/products/s57c4x-185072 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_a9b386db-8ab7-4376-9878-ad95de3659ee.png?v=1774723130 Cisatracurium EP Impurity M TFA salt Cisatracurium EP Impurity M TFA salt|C4X-185072 https://www.jk-sci.com/products/j5315261 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/33d9f0cb1dc2c0efc29620533b8f45a2.jpg?v=1776332495 Boc-(S)-3-amino-3-(4-bromophenyl)propionic acid | 261165-06-4 Boc-(S)-3-amino-3-(4-bromophenyl)propionic acid|15261|261165-06-4 https://www.jk-sci.com/products/ts246cs-0072301 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/10c18194d9974b14ccce703b93be777d.jpg?v=1776460252 But-3-yn-2-amine hydrochloride | 42105-26-0 But-3-yn-2-amine hydrochloride|CS-0072301|42105-26-0 https://www.jk-sci.com/products/j5315255 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9ea54c1f6eeccba847df374790c84d36.jpg?v=1776332477 (-)-(1R,3S)-N-Fmoc-3-aminocyclopentane carboxylic acid | 220497-67-6 (-)-(1R,3S)-N-Fmoc-3-aminocyclopentane carboxylic acid|15255|220497-67-6 https://www.jk-sci.com/products/ts246cs-0072548 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/749ceb3f512ba148f7a338ecc603ae2a.jpg?v=1776460335 1,6-Naphthyridine-8-carboxylic acid | 362606-19-7 1,6-Naphthyridine-8-carboxylic acid|CS-0072548|362606-19-7 https://www.jk-sci.com/products/ts246cs-0072364 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/227870.png?v=1776460283 4-Fluorobenzenesulfonamide | 402-46-0 4-Fluorobenzenesulfonamide|CS-0072364|402-46-0 https://www.jk-sci.com/products/s57c4x-185411 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/475034e4f9f148f43a1fb854622d94b0.jpg?v=1776415423 Arotinolol Impurity 11 | 68257-90-9 Arotinolol Impurity 11|C4X-185411|68257-90-9 https://www.jk-sci.com/products/s57c4x-18535 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/845d7a456fef6bad92a4b22ffa18e92a.jpg?v=1776415420 Sibutramine Impurity 5 | 3058304-40-5 Sibutramine Impurity 5|C4X-18535|3058304-40-5 https://www.jk-sci.com/products/s57c4x-185420 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_485df05d-2e9c-409b-a4bc-79ad5db3af2f.png?v=1775060857 Arotinolol Impurity 20 Arotinolol Impurity 20|C4X-185420 https://www.jk-sci.com/products/ts246cs-0072618 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/490355.png?v=1776460355 2-Chloro-N-(2-fluorophenyl)acetamide | 347-66-0 2-Chloro-N-(2-fluorophenyl)acetamide|CS-0072618|347-66-0 https://www.jk-sci.com/products/ts246cs-0072670 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/333420.png?v=1776460367 6-Chloro-1,2,3,4-tetrahydroisoquinoline hydrochloride | 33537-97-2 6-Chloro-1,2,3,4-tetrahydroisoquinoline hydrochloride|CS-0072670|33537-97-2 https://www.jk-sci.com/products/ts246cs-0072585 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/235a7449bf9f371e8fab5aa5ffeec710.jpg?v=1776460350 3-Bromo-4-hydroxysulfolane | 35330-57-5 3-Bromo-4-hydroxysulfolane|CS-0072585|35330-57-5 https://www.jk-sci.com/products/s57c4x-185092 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/314253_0d12c814-17de-4fc5-ba91-ec59b27cffcc.png?v=1775060851 Atracurium Impurity 92 | 640-57-3 Atracurium Impurity 92|C4X-185092|640-57-3 https://www.jk-sci.com/products/ts246cs-0072763 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c698901507d4f64c3d18af5728b57455.jpg?v=1776460388 3-Chloro-6-(propan-2-yloxy)pyridazine | 3184-71-2 3-Chloro-6-(propan-2-yloxy)pyridazine|CS-0072763|3184-71-2 https://www.jk-sci.com/products/j5315264 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fde51cce771ea523d54760963a37531b.jpg?v=1776332505 (R)-3-Amino-3-(3-chlorophenyl)propionic acid | 262429-49-2 (R)-3-Amino-3-(3-chlorophenyl)propionic acid|15264|262429-49-2 https://www.jk-sci.com/products/j5308072 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/07cc8081a0144d8d64c3fe2a84f461ef.jpg?v=1776328430 Fmoc-Gly-Gly-Gly-OH | 170941-79-4 Fmoc-Gly-Gly-Gly-OH|08072|170941-79-4 https://www.jk-sci.com/products/ts246cs-0072825 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e4328612fb5bc2a04f21625764c2c3dd.jpg?v=1776460400 4-(Benzofuran-2-yl)thiazol-2-amine | 3084-04-6 4-(Benzofuran-2-yl)thiazol-2-amine|CS-0072825|3084-04-6 https://www.jk-sci.com/products/s57c4x-185414 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/28ade60c7b9e22d7ca76175fc496e3e8.jpg?v=1776415429 Arotinolol Impurity 14 | 1701418-50-9 Arotinolol Impurity 14|C4X-185414|1701418-50-9 https://www.jk-sci.com/products/s57c4x-185432 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_4a972b3a-b43e-4e48-ac34-04ba46c648ad.png?v=1774726049 Arotinolol Impurity 32 Arotinolol Impurity 32|C4X-185432 https://www.jk-sci.com/products/s57c4x-185442 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fdb4c06af97e792d795f4dcfa5537176.jpg?v=1776415435 Arotinolol Impurity 42 | 57797-77-0 Arotinolol Impurity 42|C4X-185442|57797-77-0 https://www.jk-sci.com/products/s57c4x-18547 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/594575.png?v=1774902051 5-Acetylthiophene-2-carboxamide(Arotinolol Impurity 7) | 68257-89-6 5-Acetylthiophene-2-carboxamide(Arotinolol Impurity 7)|C4X-18547|68257-89-6 https://www.jk-sci.com/products/s57c4x-185444 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/604088.png?v=1774666924 Arotinolol | 68377-92-4 Arotinolol|C4X-185444|68377-92-4 https://www.jk-sci.com/products/s57c4x-18549 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/115377.png?v=1775078878 Arotinolol Impurity 9 | 4066-41-5 Arotinolol Impurity 9|C4X-18549|4066-41-5 https://www.jk-sci.com/products/s57c4x-18552 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/423805_987ac2d2-fc4b-4e9c-8fa4-ddd6f244e522.png?v=1775069489 Aminophylline EP Impurity B | 1076-22-8 Aminophylline EP Impurity B|C4X-18552|1076-22-8 https://www.jk-sci.com/products/ts246cs-0072898 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8ea277a163a62301214aedd5ba4124a6.jpg?v=1776460429 4-(1H-Benzo[d]imidazol-2-yl)aniline | 2963-77-1 4-(1H-Benzo[d]imidazol-2-yl)aniline|CS-0072898|2963-77-1 https://www.jk-sci.com/products/ts246cs-0072973 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5f2671800a67e142e7cf2f23fcb2a241.jpg?v=1776460446 Ethyl 4-chloro-8-methoxyquinoline-3-carboxylate | 27568-05-4 Ethyl 4-chloro-8-methoxyquinoline-3-carboxylate|CS-0072973|27568-05-4 https://www.jk-sci.com/products/ts246cs-0072874 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/582442.png?v=1776460418 CL-59089 | 3008-61-5 CL-59089|CS-0072874|3008-61-5 https://www.jk-sci.com/products/ts246cs-0073026 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e76606803e07f9074f7833bb6ab5b6b4.jpg?v=1776460465 1,4-Diamino-2-butyne dihydrochloride | 26232-80-4 1,4-Diamino-2-butyne dihydrochloride|CS-0073026|26232-80-4 https://www.jk-sci.com/products/ts246cs-0073222 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4aac29a5c8fa170d729a4606bef8b9ec.jpg?v=1776460498 7-Chloro-3-methyl-3H-[1,2,3]triazolo[4,5-d]pyrimidine | 21323-71-7 7-Chloro-3-methyl-3H-[1,2,3]triazolo[4,5-d]pyrimidine|CS-0073222|21323-71-7 https://www.jk-sci.com/products/ts246cs-0073045 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/482431.png?v=1776460480 2-Phenoxybenzoic acid | 2243-42-7 2-Phenoxybenzoic acid|CS-0073045|2243-42-7 https://www.jk-sci.com/products/s57c4x-18557 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/487186.png?v=1774640824 Aminophylline EP ImpurityG | 83-67-0 Aminophylline EP ImpurityG|C4X-18557|83-67-0 https://www.jk-sci.com/products/s57c4x-185814 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_128fbf6a-8f82-4f8c-aa96-7229b86911f3.png?v=1775070469 Trimebutine Impurity 14 Trimebutine Impurity 14|C4X-185814 https://www.jk-sci.com/products/j5311831 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0ed73f2f32d0b269dd938defc4bcadcc.jpg?v=1776329789 Boc-D-alanine methyl ester | 91103-47-8 Boc-D-alanine methyl ester|11831|91103-47-8 https://www.jk-sci.com/products/s57c4x-18555 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/463363_e2336ce7-a8da-4a3d-9469-f424409c250c.png?v=1774902056 Aminophylline EP Impurity E | 944-73-0 Aminophylline EP Impurity E|C4X-18555|944-73-0 https://www.jk-sci.com/products/s57c4x-1858 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/367035.png?v=1775060865 Trimebutine | 39133-31-8 Trimebutine|C4X-1858|39133-31-8 https://www.jk-sci.com/products/j5312393 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b53eed8000cb427fbabf80360e6089af.jpg?v=1776330310 Fmoc-DL-glutamic acid-g-allyl ester | 366491-50-1 Fmoc-DL-glutamic acid-g-allyl ester|12393|366491-50-1 https://www.jk-sci.com/products/ts246cs-0073454 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/74f6a25895614a700f02aedea288fbd7.jpg?v=1776460515 1-(tert-Butoxycarbonyl)indoline-6-carboxylic acid | 208772-41-2 1-(tert-Butoxycarbonyl)indoline-6-carboxylic acid|CS-0073454|208772-41-2 https://www.jk-sci.com/products/s57c4x-185816 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_22c9b932-4ccb-4372-8f5c-c6c0aa18f4ed.png?v=1775052776 Trimebutine Impurity 16 Trimebutine Impurity 16|C4X-185816 https://www.jk-sci.com/products/ts246cs-0073656 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c048b4eaa211e9b1af4cda2585f3055f.jpg?v=1776460524 2-Oxo-2,3-dihydro-1H-indole-5-sulfonyl chloride | 199328-31-9 2-Oxo-2,3-dihydro-1H-indole-5-sulfonyl chloride|CS-0073656|199328-31-9 https://www.jk-sci.com/products/s57c4x-18582 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/488231_72aefe67-f042-423e-9568-4b6fd474950f.png?v=1774965661 Trimebutine EP Impurity B/Trimethoprim EP Impurity J | 118-41-2 Trimebutine EP Impurity B/Trimethoprim EP Impurity J|C4X-18582|118-41-2 https://www.jk-sci.com/products/ts246cs-0073869 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/99c051f113884bc0eeb728c8b0154424.jpg?v=1776460549 4,6-Dichloro-2-(propan-2-yl)pyrimidine | 1850-98-2 4,6-Dichloro-2-(propan-2-yl)pyrimidine|CS-0073869|1850-98-2 https://www.jk-sci.com/products/ts246cs-0074136 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/294231.png?v=1776460568 2-Pyridinecarboxamidoxime | 1772-01-6 2-Pyridinecarboxamidoxime|CS-0074136|1772-01-6 https://www.jk-sci.com/products/ts246cs-0074179 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/615251.png?v=1776460583 (2-Amino-4-phenyl-5-thiazolyl)phenylmethanone | 17279-56-0 (2-Amino-4-phenyl-5-thiazolyl)phenylmethanone|CS-0074179|17279-56-0 https://www.jk-sci.com/products/ts246cs-0074254 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/417667.png?v=1776460588 4,4'-Trimethylenedipiperidine | 16898-52-5 4,4'-Trimethylenedipiperidine|CS-0074254|16898-52-5 https://www.jk-sci.com/products/j5312763 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/15a187b4d83bb6f4770c376206a96f6b.jpg?v=1776330591 Fmoc-L-b-homoproline | 193693-60-6 Fmoc-L-b-homoproline|12763|193693-60-6 https://www.jk-sci.com/products/ts246cs-0074286 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6ed517ec93c404ba2ddc140d7f3490c8.jpg?v=1776460605 2-Cyclopropyl-1H-benzoimidazole | 16405-79-1 2-Cyclopropyl-1H-benzoimidazole|CS-0074286|16405-79-1 https://www.jk-sci.com/products/s57c4x-18583 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-18585 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/254584.png?v=1774673880 Trimebutine EP Impurity E | 84333-59-5 Trimebutine EP Impurity E|C4X-18585|84333-59-5 https://www.jk-sci.com/products/s57c4x-18614 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/j5312889 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b71547243fe9811195b800f23f34b355.jpg?v=1776330819 Boc-L-b-leucine | 183990-64-9 Boc-L-b-leucine|12889|183990-64-9 https://www.jk-sci.com/products/s57c4x-18589 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/ts246cs-0074420 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9f998a0574c8f2f4ecb0e0b8e154bd42.jpg?v=1776460628 4,7-Dimethylindoline-2,3-dione | 15540-90-6 4,7-Dimethylindoline-2,3-dione|CS-0074420|15540-90-6 https://www.jk-sci.com/products/s57c4x-1864 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/150188_f241b6ab-9f05-430c-9fa5-b2b7e858781c.png?v=1775060874 Phenytoin | 57-41-0 Phenytoin|C4X-1864|57-41-0 https://www.jk-sci.com/products/ts246cs-0074552 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/340026.png?v=1776460646 2,3-Dimethyl-1H-indole-5-carboxylic acid | 14844-73-6 2,3-Dimethyl-1H-indole-5-carboxylic acid|CS-0074552|14844-73-6 https://www.jk-sci.com/products/ts246cs-0074592 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ee7c7bd724e3455371f351ad1ae61334.jpg?v=1776460658 6-Chloro-1-methyl-1H-benzo[d][1,3]oxazine-2,4-dione | 14529-12-5 6-Chloro-1-methyl-1H-benzo[d][1,3]oxazine-2,4-dione|CS-0074592|14529-12-5 https://www.jk-sci.com/products/s57c4x-18606 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5f04b3da24c4cfa36600f2846df4ca91.jpg?v=1776415461 Tigecycline Epimer | 1422262-97-2 Tigecycline Epimer|C4X-18606|1422262-97-2 https://www.jk-sci.com/products/ts246cs-0065169 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/413f0271276cc0b5d145c88819b2d60d.jpg?v=1776458915 Ethyl 7-bromo-2-oxo-2H-chromene-3-carboxylate | 105837-04-5 Ethyl 7-bromo-2-oxo-2H-chromene-3-carboxylate|CS-0065169|105837-04-5 https://www.jk-sci.com/products/ts246cs-0067914 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1c9c73ac42a0fd7e5cc1e4b4b86e5ce6.jpg?v=1776459389 4-Bromo-2-hydrazinylpyridine | 1019918-39-8 4-Bromo-2-hydrazinylpyridine|CS-0067914|1019918-39-8 https://www.jk-sci.com/products/ts246cs-0069572 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/318267_ca8314ab-ffb5-4988-80b3-fe7bfd4eb0b4.png?v=1776459647 tert-Butyl piperazine-1-carboxylate oxalate | 57260-72-7 tert-Butyl piperazine-1-carboxylate oxalate|CS-0069572|57260-72-7 https://www.jk-sci.com/products/ts246cs-0071281 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/af964c0910eab6385f019b4ddd7e7776.jpg?v=1776459933 4-Chloro-2-cyclopropyl-6-methylpyrimidine | 7043-11-0 4-Chloro-2-cyclopropyl-6-methylpyrimidine|CS-0071281|7043-11-0 https://www.jk-sci.com/products/j5314009 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c7a245d04350fbcad1cf63e8ca4ef210.jpg?v=1776330989 Fmoc-L-cysteine hydrate | 135248-89-4 Fmoc-L-cysteine hydrate|14009|135248-89-4 https://www.jk-sci.com/products/ts246cs-0070675 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/430826_cff39300-72d3-438b-9b97-2a89be982e46.png?v=1776459814 Methyl 3-Hydroxy-2-naphthoate | 883-99-8 Methyl 3-Hydroxy-2-naphthoate|CS-0070675|883-99-8 https://www.jk-sci.com/products/s57c4x-18612 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e5a74e9c50f4c7be38fc18ab1fe339a4.jpg?v=1776415469 Nikethamide Impurity 2 | 20165-96-2 Nikethamide Impurity 2|C4X-18612|20165-96-2 https://www.jk-sci.com/products/s57c4x-18618 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/ts246cs-0071576 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cdd820ab36ca6ea8c9f345065015bfb0.jpg?v=1776460029 1'-Methyl-3,4-dihydrospiro[1-benzopyran-2,4'-piperidin]-4-one | 62756-24-5 1'-Methyl-3,4-dihydrospiro[1-benzopyran-2,4'-piperidin]-4-one|CS-0071576|62756-24-5 https://www.jk-sci.com/products/s57c4x-186211 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-186229 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/303957_d2d15648-4964-4ee6-8c89-100e263330d8.png?v=1775143324 Pyr-His-Trp-Ser-Tyr-Trp-Leu-Arg-Pro-Gly-NH2 Pyr-His-Trp-Ser-Tyr-Trp-Leu-Arg-Pro-Gly-NH2|C4X-186229 https://www.jk-sci.com/products/ts246cs-0071705 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1ec1991be55a09e7e7fd1924b5a8dbe2.jpg?v=1776460077 7-Bromothieno[3,2-b]pyridine | 603305-89-1 7-Bromothieno[3,2-b]pyridine|CS-0071705|603305-89-1 https://www.jk-sci.com/products/s57c4x-186232 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-186235 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_e7501b7c-7bd3-4a89-a8e3-2bd18e7e6568.png?v=1774892842 pGlu-His-L-Trp-Tyr-D-Trp-Leu-Arg-Pro-Gly-NH2 pGlu-His-L-Trp-Tyr-D-Trp-Leu-Arg-Pro-Gly-NH2|C4X-186235 https://www.jk-sci.com/products/ts246cs-0071975 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/493382.png?v=1776460141 N,N'-Dimethylthiourea | 534-13-4 N,N'-Dimethylthiourea|CS-0071975|534-13-4 https://www.jk-sci.com/products/s57c4x-18642 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/540376.png?v=1774880564 Phenytoin-d10 | 65854-97-9 Phenytoin-d10|C4X-18642|65854-97-9 https://www.jk-sci.com/products/ts246cs-0072442 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f1dd4c0a745a518fd052bce949b68dde.jpg?v=1776460309 1-(2,3-Dimethoxyphenyl)ethan-1-one | 38480-94-3 1-(2,3-Dimethoxyphenyl)ethan-1-one|CS-0072442|38480-94-3 https://www.jk-sci.com/products/ts246cs-0072099 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/414164_d6ac245c-8540-4c42-92e1-edc27fd3a56f.png?v=1776460183 5,7-Dibromo-1H-indazole | 50477-28-6 5,7-Dibromo-1H-indazole|CS-0072099|50477-28-6 https://www.jk-sci.com/products/s57c4x-18645 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/caac797cb14e8eeecf3148158e529f58.jpg?v=1776415487 Phenytoin impurity 5 | 3254-93-1 Phenytoin impurity 5|C4X-18645|3254-93-1 https://www.jk-sci.com/products/ts246cs-0072316 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/263354.png?v=1776460260 1-Amino-3-(4-tert-butyl-phenoxy)-propan-2-ol | 41403-84-3 1-Amino-3-(4-tert-butyl-phenoxy)-propan-2-ol|CS-0072316|41403-84-3 https://www.jk-sci.com/products/s57c4x-186412 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/79b4e4e771f84fabe43c6c4a0c11e933.jpg?v=1776415485 Phenytoin Impurity 12 | 15427-81-3 Phenytoin Impurity 12|C4X-186412|15427-81-3 https://www.jk-sci.com/products/ts246cs-0072683 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/410948.png?v=1776460369 [(4-Fluorophenyl)thio]acetic acid | 332-51-4 [(4-Fluorophenyl)thio]acetic acid|CS-0072683|332-51-4 https://www.jk-sci.com/products/ts246cs-0072870 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5bd37459dd971fce63327e0a769bdd75.jpg?v=1776460412 3-Phenoxyazetidine hydrochloride | 301335-39-7 3-Phenoxyazetidine hydrochloride|CS-0072870|301335-39-7 https://www.jk-sci.com/products/ts246cs-0072592 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8362a0a9f0a86e0b3416ce3a48972af1.jpg?v=1776460353 Methyl 3-Aminobenzo[b]thiophene-2-carboxylate | 35212-85-2 Methyl 3-Aminobenzo[b]thiophene-2-carboxylate|CS-0072592|35212-85-2 https://www.jk-sci.com/products/s57c4x-18649 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/ts246cs-0072926 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/79cb8ae2ebc0b2a3121985a9c91a0664.jpg?v=1776460435 1-(4-Fluorophenyl)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one | 289651-72-5 1-(4-Fluorophenyl)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one|CS-0072926|289651-72-5 https://www.jk-sci.com/products/ts246cs-0073823 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/561730_bf3f1abc-c79c-4bb2-b830-93b36adca5de.png?v=1776460541 2-(2-Methylphenoxy)acetic acid | 1878-49-5 2-(2-Methylphenoxy)acetic acid|CS-0073823|1878-49-5 https://www.jk-sci.com/products/ts246cs-0074265 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/286031.png?v=1776460591 6-Nitroquinolin-8-ol | 16727-28-9 6-Nitroquinolin-8-ol|CS-0074265|16727-28-9 https://www.jk-sci.com/products/ts246cs-0073028 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c36b69c3786127334a06ea588a432ea3.jpg?v=1776460468 (4-Methylbenzyl)hydrazine hydrochloride | 26177-51-5 (4-Methylbenzyl)hydrazine hydrochloride|CS-0073028|26177-51-5 https://www.jk-sci.com/products/s57c4x-187311 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9f0ac45a902dad0a66e78235a68547ce.jpg?v=1776415494 Thiamine Impurity 11 | 105070-51-7 Thiamine Impurity 11|C4X-187311|105070-51-7 https://www.jk-sci.com/products/ts246cs-0074172 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/06c5e86387d977bb82a22cf0b0b7860f.jpg?v=1776460580 2-[2-(Morpholine-4-sulfonyl)ethyl]-2,3-dihydro-1H-isoindole-1,3-dione | 173336-67-9 2-[2-(Morpholine-4-sulfonyl)ethyl]-2,3-dihydro-1H-isoindole-1,3-dione|CS-0074172|173336-67-9 https://www.jk-sci.com/products/s57c4x-18661 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/ts246cs-0074446 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fcbc3b625fd8b6b1bf7758132ecf91ac.jpg?v=1776460631 2,6-Difluoro-3-formylbenzonitrile | 1541976-46-8 2,6-Difluoro-3-formylbenzonitrile|CS-0074446|1541976-46-8 https://www.jk-sci.com/products/s57c4x-18721 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/115515.png?v=1774727805 Norfluoxetine Hydrochloride | 57226-68-3 Norfluoxetine Hydrochloride|C4X-18721|57226-68-3 https://www.jk-sci.com/products/ts246cs-0073225 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/446335.png?v=1776460501 (1-Ethyl-1H-benzoimidazol-2-yl)-methanol | 21269-78-3 (1-Ethyl-1H-benzoimidazol-2-yl)-methanol|CS-0073225|21269-78-3 https://www.jk-sci.com/products/ts246cs-0074789 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/446804.png?v=1776460680 2-Methoxyquinoline-3-carbaldehyde | 139549-06-7 2-Methoxyquinoline-3-carbaldehyde|CS-0074789|139549-06-7 https://www.jk-sci.com/products/s57c4x-169672 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_cd1428b6-66bc-4ebf-8ad2-d192210e2096.png?v=1774711457 LCZ-696 Impurity 72 calcium salt LCZ-696 Impurity 72 calcium salt|C4X-169672 https://www.jk-sci.com/products/ts246cs-0074846 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/125655.png?v=1776460695 2,4-Diaminophenol dihydrochloride | 137-09-7 2,4-Diaminophenol dihydrochloride|CS-0074846|137-09-7 https://www.jk-sci.com/products/ts246cs-0075003 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/158918.png?v=1776460704 3-(2,4-Difluorophenyl)propanoic acid | 134672-70-1 3-(2,4-Difluorophenyl)propanoic acid|CS-0075003|134672-70-1 https://www.jk-sci.com/products/s57c4x-172422 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/44025bf518d49f141bad51c904ff6dab_c1df34d5-5ad4-49f2-83f7-b165d42ebbe1.jpg?v=1776414247 Paliperidone USP Related Compound B | 84163-13-3 Paliperidone USP Related Compound B|C4X-172422|84163-13-3 https://www.jk-sci.com/products/j5314254 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ad104ec6f3c2e11b9c4989933ec7a9f8.jpg?v=1776331195 L-3,4-Dichlorophenylalanine methyl ester hydrochloride | 173522-95-7 L-3,4-Dichlorophenylalanine methyl ester hydrochloride|14254|173522-95-7 https://www.jk-sci.com/products/ts246cs-0075161 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4f186bbb834e18d264f6c5a4c3eb3e55.jpg?v=1776460731 N-[4-(Trifluoromethyl)phenyl]guanidine | 130066-24-9 N-[4-(Trifluoromethyl)phenyl]guanidine|CS-0075161|130066-24-9 https://www.jk-sci.com/products/s57c4x-17332 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/691d5db8db83f12882543119fbf87e49.jpg?v=1776414392 Piroxicam EP Impurity B | 65897-46-3 Piroxicam EP Impurity B|C4X-17332|65897-46-3 https://www.jk-sci.com/products/ts246cs-0075410 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9275f1508dafa7787961186105e8d645.jpg?v=1776460751 1-(2-Amino-6,7-dihydro-4H-thiazolo[5,4-c]pyridin-5-yl)-ethanone | 124458-11-3 1-(2-Amino-6,7-dihydro-4H-thiazolo[5,4-c]pyridin-5-yl)-ethanone|CS-0075410|124458-11-3 https://www.jk-sci.com/products/ts246cs-0075447 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/137222.png?v=1776460765 3,3'-Disulfanediyldibenzoic acid | 1227-49-2 3,3'-Disulfanediyldibenzoic acid|CS-0075447|1227-49-2 https://www.jk-sci.com/products/s57c4x-1755 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/557613_d90d2e31-8e26-42b7-92f5-c795aa77e912.png?v=1774644661 Stavudine(Zidovudine EP Impurity A) | 3056-17-5 Stavudine(Zidovudine EP Impurity A)|C4X-1755|3056-17-5 https://www.jk-sci.com/products/ts246cs-0075558 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f4a5918baa09f37f26b2c2e527b6a107.jpg?v=1776460785 N-(4,5,6,7-Tetrahydro[1,3]thiazolo[5,4-c]pyridin-2-yl)acetamide hydrochloride | 1209492-78-3 N-(4,5,6,7-Tetrahydro[1,3]thiazolo[5,4-c]pyridin-2-yl)acetamide hydrochloride|CS-0075558|1209492-78-3 https://www.jk-sci.com/products/ts246cs-0075719 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f168e02c70aecef94d08642200041786.jpg?v=1776460809 4-Chloro-2-methyl-5H,6H,7H-cyclopenta[d]pyrimidine | 118802-40-7 4-Chloro-2-methyl-5H,6H,7H-cyclopenta[d]pyrimidine|CS-0075719|118802-40-7 https://www.jk-sci.com/products/s57c4x-177123 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_b92575da-3b11-4bff-b5b1-c732cbf66533.png?v=1774719096 Tranexamic Impurity 23 Tranexamic Impurity 23|C4X-177123 https://www.jk-sci.com/products/s57c4x-177411 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e9236a49003ff19420ae0a0c5ddea0df.jpg?v=1776414688 Valganciclovir Impurity 11 | 1202645-50-8 Valganciclovir Impurity 11|C4X-177411|1202645-50-8 https://www.jk-sci.com/products/ts246cs-0075760 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/02ca17999dcc1972875decd62acdb9b8.jpg?v=1776460821 4-(Chloromethyl)-1-methylpiperidine hydrochloride | 1182284-45-2 4-(Chloromethyl)-1-methylpiperidine hydrochloride|CS-0075760|1182284-45-2 https://www.jk-sci.com/products/ts246cs-0076000 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a394cd40abc94f32459b56d1c425fced.jpg?v=1776460856 5-Chloro-3-methyl-benzofuran-2-carboxylic acid | 1134-00-5 5-Chloro-3-methyl-benzofuran-2-carboxylic acid|CS-0076000|1134-00-5 https://www.jk-sci.com/products/j5314352 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/857d57b1030a533a0408e271c6ff324a.jpg?v=1776331365 3-Iodo-L-phenylalanine | 20846-39-3 3-Iodo-L-phenylalanine|14352|20846-39-3 https://www.jk-sci.com/products/ts246cs-0076039 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/121547_19d3b431-7595-4aff-bb79-c87864c12ea6.png?v=1776460876 1-Bromooctane | 111-83-1 1-Bromooctane|CS-0076039|111-83-1 https://www.jk-sci.com/products/ts246cs-0076210 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d53333b972617bb4067b4928c0d76f6b.jpg?v=1776460884 5-(1,3-Benzodioxol-5-yl)-3-(chloromethyl)isoxazole | 1105191-39-6 5-(1,3-Benzodioxol-5-yl)-3-(chloromethyl)isoxazole|CS-0076210|1105191-39-6 https://www.jk-sci.com/products/s57c4x-17791 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/ts246cs-0076330 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a0efba02fc8d5cf8d5ec0188bbc1ee91.jpg?v=1776460895 5-(3-Bromophenyl)-1,3,4-oxadiazol-2-amine | 109060-66-4 5-(3-Bromophenyl)-1,3,4-oxadiazol-2-amine|CS-0076330|109060-66-4 https://www.jk-sci.com/products/s57c4x-17905 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/35a72a36c67dd6319826acc196bc840b.jpg?v=1776414779 Vecuronium Bromide EP Impurity E | 50587-95-6 Vecuronium Bromide EP Impurity E|C4X-17905|50587-95-6 https://www.jk-sci.com/products/ts246cs-0076572 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/227299.png?v=1776460942 4-(Morpholine-4-sulfonyl)benzoic acid | 10252-82-1 4-(Morpholine-4-sulfonyl)benzoic acid|CS-0076572|10252-82-1 https://www.jk-sci.com/products/ts246cs-0076520 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8fad54d236e734d70baf4ff60bb4d67e.jpg?v=1776460925 2,3-Dimethyl-1H-indole-7-carboxylic acid | 103986-07-8 2,3-Dimethyl-1H-indole-7-carboxylic acid|CS-0076520|103986-07-8 https://www.jk-sci.com/products/ts246cs-0076417 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/295074_de19e41a-9ca9-48ad-be4d-eae203816206.png?v=1776460904 (2-Bromoethyl)diethylamine hydrobromide | 1069-72-3 (2-Bromoethyl)diethylamine hydrobromide|CS-0076417|1069-72-3 https://www.jk-sci.com/products/s57c4x-179334 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_eebc605b-0a60-46fc-b32d-23ee63b9d88c.png?v=1775052756 (Z)-Ceftizoxime Impurity 34 (Z)-Ceftizoxime Impurity 34|C4X-179334 https://www.jk-sci.com/products/ts246cs-0076753 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cc499ac330f82e5de805217c25aac4e8.jpg?v=1776460972 6-Chloro-2-methyl-2,3-dihydropyridazin-3-one | 10071-38-2 6-Chloro-2-methyl-2,3-dihydropyridazin-3-one|CS-0076753|10071-38-2 https://www.jk-sci.com/products/ts246cs-0076672 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a4101825552a9fafad37d36a286afd6a.jpg?v=1776460960 4-Ethoxy-3-fluorobenzene-1-sulfonyl chloride | 1016756-58-3 4-Ethoxy-3-fluorobenzene-1-sulfonyl chloride|CS-0076672|1016756-58-3 https://www.jk-sci.com/products/ts246cs-0076892 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/87c503c116d2d93c545baa089efb7e8a.jpg?v=1776461004 2-Amino-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carbonitrile | 23917-22-8 2-Amino-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carbonitrile|CS-0076892|23917-22-8 https://www.jk-sci.com/products/ts246cs-0076810 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/293360.png?v=1776460986 4-Aminoisoindoline-1,3-dione | 2518-24-3 4-Aminoisoindoline-1,3-dione|CS-0076810|2518-24-3 https://www.jk-sci.com/products/ts246cs-0076929 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d99c46305837dd1903239683dc8a4c63.jpg?v=1776461022 3-(Trifluoromethyl)-1H-pyrazolo[4,3-c]pyridine | 230305-81-4 3-(Trifluoromethyl)-1H-pyrazolo[4,3-c]pyridine|CS-0076929|230305-81-4 https://www.jk-sci.com/products/ts246cs-0063193 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/157859.png?v=1776458337 5-(Methylthio)-1H-1,2,4-triazol-3-amine | 45534-08-5 5-(Methylthio)-1H-1,2,4-triazol-3-amine|CS-0063193|45534-08-5 https://www.jk-sci.com/products/ts246cs-0071074 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d5b6eaf17b7338f93bf612b238261215.jpg?v=1776459888 7-Chloro-2,4-dimethyl-[1,8]naphthyridine | 77223-21-3 7-Chloro-2,4-dimethyl-[1,8]naphthyridine|CS-0071074|77223-21-3 https://www.jk-sci.com/products/ts246cs-0069194 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8d4324edc7d05e120e39c352524622bd.jpg?v=1776459592 5,5-Dimethyl-2-thioxoimidazolidin-4-one | 15998-93-3 5,5-Dimethyl-2-thioxoimidazolidin-4-one|CS-0069194|15998-93-3 https://www.jk-sci.com/products/ts246cs-0072069 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/238272_9236f07b-01e2-4a70-87cd-d18c9de01593.png?v=1776460170 (2-Methoxy-5-nitrophenyl)acetic acid | 51073-04-2 (2-Methoxy-5-nitrophenyl)acetic acid|CS-0072069|51073-04-2 https://www.jk-sci.com/products/ts246cs-0071662 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/edc16780528fe2405c7b9b92f9b6bcf2.jpg?v=1776460057 4-(2-Chlorophenoxy)benzenesulfonyl chloride | 610277-84-4 4-(2-Chlorophenoxy)benzenesulfonyl chloride|CS-0071662|610277-84-4 https://www.jk-sci.com/products/j5314413 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/aef6ed505643a7a18a960ed1ffb2a186.jpg?v=1776331477 Boc-L-Valine chloromethyl ketone | 103542-47-8 Boc-L-Valine chloromethyl ketone|14413|103542-47-8 https://www.jk-sci.com/products/ts246cs-0072392 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5920194d48a13f55ddcb79a3c38d2827.jpg?v=1776460300 Methyl 4-(4-methylphenyl)-2,4-dioxobutanoate | 39757-29-4 Methyl 4-(4-methylphenyl)-2,4-dioxobutanoate|CS-0072392|39757-29-4 https://www.jk-sci.com/products/s57c4x-179716 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_3963f273-5110-41ad-bef4-f527da822f45.png?v=1775076404 Tenofovir Alafenamide Impurity 16 | 390409-27-5 Tenofovir Alafenamide Impurity 16|C4X-179716|390409-27-5 https://www.jk-sci.com/products/ts246cs-0072631 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8e09ddd2e8200f08cf4881ffe5b10b6a.jpg?v=1776460362 6-(4-Methylpiperazin-1-yl)pyridazin-3-ol | 344287-23-6 6-(4-Methylpiperazin-1-yl)pyridazin-3-ol|CS-0072631|344287-23-6 https://www.jk-sci.com/products/ts246cs-0073172 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/04ff60e706d3bae50e651cebaa74a7d3.jpg?v=1776460495 3-Methyl-2,3-dihydro-1H-indole hydrochloride | 21573-62-6 3-Methyl-2,3-dihydro-1H-indole hydrochloride|CS-0073172|21573-62-6 https://www.jk-sci.com/products/s57c4x-180228 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_b5f1c045-fc01-4497-90c0-553375b98034.png?v=1774661176 Miconazole EP Impurity E Miconazole EP Impurity E|C4X-180228 https://www.jk-sci.com/products/ts246cs-0072886 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/111777_aba5262d-e5c6-46a0-9a5e-f0034473a66c.png?v=1776460421 5-Phenyl-1,3,4-oxadiazole-2-thiol | 3004-42-0 5-Phenyl-1,3,4-oxadiazole-2-thiol|CS-0072886|3004-42-0 https://www.jk-sci.com/products/j5314470 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3705b1056378218adbe9a7d209f34879.jpg?v=1776331593 2'-(Boc-aminomethyl)biphenyl-2-carboxylic acid | 158066-11-6 2'-(Boc-aminomethyl)biphenyl-2-carboxylic acid|14470|158066-11-6 https://www.jk-sci.com/products/ts246cs-0074093 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7cfb3da67b53cf4b1c31e0d314f558de.jpg?v=1776460562 5-Bromo-[1,7]naphthyridine | 17965-76-3 5-Bromo-[1,7]naphthyridine|CS-0074093|17965-76-3 https://www.jk-sci.com/products/s57c4x-18111 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8df45af6c8ace0aaed4a34333360fd94.jpg?v=1776414939 Pranoprofen Impurity 1 | 53944-31-3 Pranoprofen Impurity 1|C4X-18111|53944-31-3 https://www.jk-sci.com/products/ts246cs-0074290 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/305322.png?v=1776460608 3-Aminocoumarin | 1635-31-0 3-Aminocoumarin|CS-0074290|1635-31-0 https://www.jk-sci.com/products/s57c4x-180911 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_dfdc2993-5f5e-4ba1-8751-f14a08265bc9.png?v=1774974517 Adapalene Impurity 11 Adapalene Impurity 11|C4X-180911 https://www.jk-sci.com/products/ts246cs-0074805 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/27e4028ec793d354bc4f8d160434b306.jpg?v=1776460692 2-(Ethoxycarbonyl)-1H-indole-5-carboxylic acid | 138731-14-3 2-(Ethoxycarbonyl)-1H-indole-5-carboxylic acid|CS-0074805|138731-14-3 https://www.jk-sci.com/products/ts246cs-0075143 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2d842423a5e82e7be9e951780aa776cd.jpg?v=1776460725 2-Amino-2-cyclopropylethan-1-ol hydrochloride | 1306603-98-4 2-Amino-2-cyclopropylethan-1-ol hydrochloride|CS-0075143|1306603-98-4 https://www.jk-sci.com/products/s57c4x-18121 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-181345 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d64469a79b6d6bf617e100aedc395bf8.jpg?v=1776414982 Butylphthalide Impurity 45 Potassium | 685886-82-2 Butylphthalide Impurity 45 Potassium|C4X-181345|685886-82-2 https://www.jk-sci.com/products/ts246cs-0075427 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/273093_8b2c65ee-feda-4d0c-9235-d08ea32a35a8.png?v=1776460758 4-(5-Chloro-2-thienyl)-1,3-thiazol-2-amine | 123971-45-9 4-(5-Chloro-2-thienyl)-1,3-thiazol-2-amine|CS-0075427|123971-45-9 https://www.jk-sci.com/products/ts246cs-0075560 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/442610_57c2edaf-1086-47cb-9f5b-e46c7620acd4.png?v=1776460788 2-Imidazolidone, 96% | 120-93-4 2-Imidazolidone, 96%|CS-0075560|120-93-4 https://www.jk-sci.com/products/ts246cs-0075781 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/589625_b5ffe36b-0085-4afd-9437-dbfe2881637e.png?v=1776460827 Anthraquinone-2-carboxylic acid | 117-78-2 Anthraquinone-2-carboxylic acid|CS-0075781|117-78-2 https://www.jk-sci.com/products/ts246cs-0076122 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9a73c283fd7b08dcab3c8493bb5433ca.jpg?v=1776460882 Methyl 2-amino-5,5,7,7-tetramethyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylate | 1105194-93-1 Methyl 2-amino-5,5,7,7-tetramethyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylate|CS-0076122|1105194-93-1 https://www.jk-sci.com/products/ts246cs-0076396 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/02758615a39a0de41755f1c0c9fe1520.jpg?v=1776460901 2-Bromo-4H,5H,6H-cyclopenta[d][1,3]thiazole | 1080642-17-6 2-Bromo-4H,5H,6H-cyclopenta[d][1,3]thiazole|CS-0076396|1080642-17-6 https://www.jk-sci.com/products/ts246cs-0076566 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/294f4cfe65ad57280d7950db175f7394.jpg?v=1776460940 (E)-3-(3-Methylthiophen-2-yl)acrylic acid | 102696-70-8 (E)-3-(3-Methylthiophen-2-yl)acrylic acid|CS-0076566|102696-70-8 https://www.jk-sci.com/products/ts246cs-0076752 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3f3cc80ff788b375948ea09e307eb794.jpg?v=1776460969 2-(2-(Pyridin-2-yl)-1H-benzo[d]imidazol-1-yl)acetic acid | 100726-39-4 2-(2-(Pyridin-2-yl)-1H-benzo[d]imidazol-1-yl)acetic acid|CS-0076752|100726-39-4 https://www.jk-sci.com/products/ts246cs-0076836 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/140425.png?v=1776460992 2,6-Dichlorobenzenethiol | 24966-39-0 2,6-Dichlorobenzenethiol|CS-0076836|24966-39-0 https://www.jk-sci.com/products/ts246cs-0077124 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/512027.png?v=1776461051 1-(2-Hydroxyethyl)imidazolidin-2-one | 3699-54-5 1-(2-Hydroxyethyl)imidazolidin-2-one|CS-0077124|3699-54-5 https://www.jk-sci.com/products/ts246cs-0077160 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/89ce6ce884406094484dff96949f8d29.jpg?v=1776461056 N1-(2-(Dimethylamino)ethyl)-N1,N2,N2-trimethylethane-1,2-diamine | 3030-47-5 N1-(2-(Dimethylamino)ethyl)-N1,N2,N2-trimethylethane-1,2-diamine|CS-0077160|3030-47-5 https://www.jk-sci.com/products/s57c4x-1814114 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a0be7119d92bf86eb82e206915ed939e.jpg?v=1776415028 Nintedanib Esylate Hemihydrate | 3059992-86-5 Nintedanib Esylate Hemihydrate|C4X-1814114|3059992-86-5 https://www.jk-sci.com/products/ts246cs-0077250 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/58f4293fa361e7cc103874c1383ada6f.jpg?v=1776461076 2-Hydroxy-N,N-dimethylacetamide | 14658-93-6 2-Hydroxy-N,N-dimethylacetamide|CS-0077250|14658-93-6 https://www.jk-sci.com/products/j5314493 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f56b7d5517e0b4018a3179520400cde4.jpg?v=1776331660 Fmoc-D-Dbu(Boc)-OH | 1310680-44-4 Fmoc-D-Dbu(Boc)-OH|14493|1310680-44-4 https://www.jk-sci.com/products/ts246cs-0077187 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/264425_17777121-fe8b-4959-a864-f2083ed1ea73.png?v=1776461064 L-Phenylalanyl-L-leucine | 3303-55-7 L-Phenylalanyl-L-leucine|CS-0077187|3303-55-7 https://www.jk-sci.com/products/ts246cs-0077660 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8340e8615d66d39d9d209d8cfbf1e7cc.jpg?v=1776461147 Methyl 2-oxotetrahydrofuran-3-carboxylate | 19406-00-9 Methyl 2-oxotetrahydrofuran-3-carboxylate|CS-0077660|19406-00-9 https://www.jk-sci.com/products/s57c4x-181471 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1c529a281d2dd81ecc14c4d540e2894d.jpg?v=1776415057 Nintedanib Impurity 71 | 2243384-71-4 Nintedanib Impurity 71|C4X-181471|2243384-71-4 https://www.jk-sci.com/products/ts246cs-0077563 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7335e468659c43ec5600373ce16a9e36.jpg?v=1776461107 Methyl 3-amino-2-methoxybenzoate | 5129-25-9 Methyl 3-amino-2-methoxybenzoate|CS-0077563|5129-25-9 https://www.jk-sci.com/products/ts246cs-0078565 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8516d56328796d5670b076aad156364f.jpg?v=1776461190 tert-Butyl 3-formylazepane-1-carboxylate | 1440961-03-4 tert-Butyl 3-formylazepane-1-carboxylate|CS-0078565|1440961-03-4 https://www.jk-sci.com/products/j5314852 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e2317526607ec96529dda37d0cabe4a6.jpg?v=1776331778 Fmoc-L-homoarginine hydrochloride | 776277-76-0 Fmoc-L-homoarginine hydrochloride|14852|776277-76-0 https://www.jk-sci.com/products/ts246cs-0078592 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bf6ddfc4909caeded6572971398c6ee5.jpg?v=1776461199 4-Aminobenzo[c][1,2]oxaborol-1(3H)-ol | 1285533-08-5 4-Aminobenzo[c][1,2]oxaborol-1(3H)-ol|CS-0078592|1285533-08-5 https://www.jk-sci.com/products/ts246cs-0078603 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a5fb53be6e99527e9b025a1c00ef9a21.jpg?v=1776461214 (R)-tert-Butyl azepan-3-ylcarbamate | 1354351-56-6 (R)-tert-Butyl azepan-3-ylcarbamate|CS-0078603|1354351-56-6 https://www.jk-sci.com/products/ts246cs-0078606 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/257799.png?v=1776461219 Benzo[c][1,2]oxaborol-1(3H)-ol | 5735-41-1 Benzo[c][1,2]oxaborol-1(3H)-ol|CS-0078606|5735-41-1 https://www.jk-sci.com/products/ts246cs-0078674 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/242437.png?v=1776461243 2-(Methylthio)pyrimidine-4,6-diamine | 1005-39-6 2-(Methylthio)pyrimidine-4,6-diamine|CS-0078674|1005-39-6 https://www.jk-sci.com/products/ts246cs-0078716 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/316987.png?v=1776461249 6-Amino-9-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-3,9-dihydro-2H-purine-2-thione | 43157-50-2 6-Amino-9-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-3,9-dihydro-2H-purine-2-thione|CS-0078716|43157-50-2 https://www.jk-sci.com/products/ts246cs-0079131 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2ee757cdc354a8efbb3fafa1391f6f2c.jpg?v=1776461304 tert-Butyl (3S,4S)-3-hydroxy-4-(hydroxymethyl)pyrrolidine-1-carboxylate | 849935-87-1 tert-Butyl (3S,4S)-3-hydroxy-4-(hydroxymethyl)pyrrolidine-1-carboxylate|CS-0079131|849935-87-1 https://www.jk-sci.com/products/ts246cs-0078775 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b969c23722b00bcc2b8cc8bcef859b04.jpg?v=1776461261 3-Chlorobicyclo[1.1.1]pentane-1-carboxylic acid | 156329-73-6 3-Chlorobicyclo[1.1.1]pentane-1-carboxylic acid|CS-0078775|156329-73-6 https://www.jk-sci.com/products/ts246cs-0079222 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1693e350207dcf957a6572a02c2f6319.jpg?v=1776461336 1-(tert-Butoxycarbonyl)-4-hydroxypiperidine-3-carboxylic acid | 1015939-24-8 1-(tert-Butoxycarbonyl)-4-hydroxypiperidine-3-carboxylic acid|CS-0079222|1015939-24-8 https://www.jk-sci.com/products/ts246cs-0079038 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/502e523b142d90486b51cfe848cc333e.jpg?v=1776461281 tert-Butyl 2-methylpiperidine-1-carboxylate | 126503-04-6 tert-Butyl 2-methylpiperidine-1-carboxylate|CS-0079038|126503-04-6 https://www.jk-sci.com/products/s57c4x-18225 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_babac8df-4981-4fbb-b0c5-a392ec246add.png?v=1774640812 Leuprorelin EP Impurity E Acetate Leuprorelin EP Impurity E Acetate|C4X-18225 https://www.jk-sci.com/products/ts246cs-0079600 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1fa692a5e8d0f9de1e6505ee56ec5579.jpg?v=1776461368 4-Bromo-1,5-dimethyl-1H-1,2,3-triazole | 885877-41-8 4-Bromo-1,5-dimethyl-1H-1,2,3-triazole|CS-0079600|885877-41-8 https://www.jk-sci.com/products/ts246cs-0067654 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6019fc057804ce21e07736d09cc94f8e.jpg?v=1776459257 tert-Butyl (pyrrolidin-2-ylmethyl)carbamate hydrochloride | 1188263-71-9 tert-Butyl (pyrrolidin-2-ylmethyl)carbamate hydrochloride|CS-0067654|1188263-71-9 https://www.jk-sci.com/products/ts246cs-0071457 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/410344.png?v=1776459968 Biphenyl-3-sulfonyl chloride | 65685-01-0 Biphenyl-3-sulfonyl chloride|CS-0071457|65685-01-0 https://www.jk-sci.com/products/ts246cs-0075172 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4f6fb5df7a6528d5190d04fd3a035a78.jpg?v=1776460734 5-Methoxy-3,4-dihydroisoquinolin-1(2H)-one | 129075-49-6 5-Methoxy-3,4-dihydroisoquinolin-1(2H)-one|CS-0075172|129075-49-6 https://www.jk-sci.com/products/s57c4x-1822 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5af38cd87f77c502f90251ce7e9d546b.jpg?v=1776415099 Leuprolide Acetate | 74381-53-6 Leuprolide Acetate|C4X-1822|74381-53-6 https://www.jk-sci.com/products/ts246cs-0076604 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/485273_dc9aab2d-527f-4498-ad42-5d498bd705c9.png?v=1776460951 4-(2,5-Dimethylphenyl)thiazol-2-amine | 101967-39-9 4-(2,5-Dimethylphenyl)thiazol-2-amine|CS-0076604|101967-39-9 https://www.jk-sci.com/products/j5315005 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/285ed7fbb1d23725574448c2aba2c27e.jpg?v=1776331855 Boc-4-aminophenylacetic acid | 81196-09-0 Boc-4-aminophenylacetic acid|15005|81196-09-0 https://www.jk-sci.com/products/ts246cs-0079379 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6a418a1a5ca86800e544adadcefec95d.jpg?v=1776461354 3-Chloro-5-fluoropicolinic acid | 128073-01-8 3-Chloro-5-fluoropicolinic acid|CS-0079379|128073-01-8 https://www.jk-sci.com/products/ts246cs-0073653 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/597330_fc922eeb-3446-42f6-bc4a-6bcad37039af.png?v=1776460521 6-Fluoro-4-hydroxy-2H-chromen-2-one | 1994-13-4 6-Fluoro-4-hydroxy-2H-chromen-2-one|CS-0073653|1994-13-4 https://www.jk-sci.com/products/ts246cs-0075721 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/61f5fb93a0ef427183458d62e9d38ec7.jpg?v=1776460815 5-Nitro-1,2,3,4-tetrahydroisoquinoline hydrochloride | 1187932-31-5 5-Nitro-1,2,3,4-tetrahydroisoquinoline hydrochloride|CS-0075721|1187932-31-5 https://www.jk-sci.com/products/ts246cs-0079629 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/13c1ac3a37568ed9c31db10e8f510cb7.jpg?v=1776461382 NH2-PEG7 | 1425973-14-3 NH2-PEG7|CS-0079629|1425973-14-3 https://www.jk-sci.com/products/ts246cs-0074586 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d9fbf5410f5b6cd9faf7f670c0f4f262.jpg?v=1776460652 Bemethyl | 14610-11-8 Bemethyl|CS-0074586|14610-11-8 https://www.jk-sci.com/products/ts246cs-0077573 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/150829.png?v=1776461116 5-(M-Tolyl)tetrazole | 3441-00-7 5-(M-Tolyl)tetrazole|CS-0077573|3441-00-7 https://www.jk-sci.com/products/s57c4x-182228 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_964290bf-6b3a-47c5-9cfb-f11783fbe5cd.png?v=1774664866 Leuprorelin EP Impurity J Acetate Leuprorelin EP Impurity J Acetate|C4X-182228 https://www.jk-sci.com/products/s57c4x-18244 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_70ddbf6f-ac3d-41e7-bb4e-8bf97f5aef55.png?v=1774666894 Δ2-Cefcapene Pivoxil Δ2-Cefcapene Pivoxil|C4X-18244 https://www.jk-sci.com/products/ts246cs-0076304 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/515391_22f4e8f4-a896-44ac-aec7-499687198082.png?v=1776460890 2-(Isopropylamino)ethanol | 109-56-8 2-(Isopropylamino)ethanol|CS-0076304|109-56-8 https://www.jk-sci.com/products/ts246cs-0076925 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/506492.png?v=1776461013 Adamantane-1-carbonitrile | 23074-42-2 Adamantane-1-carbonitrile|CS-0076925|23074-42-2 https://www.jk-sci.com/products/ts246cs-0072177 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c7ab997bcebeca916d7139e03ac44a23.jpg?v=1776460219 6-Hydroxy-2H-1,3-benzodioxole-5-carbaldehyde | 4720-68-7 6-Hydroxy-2H-1,3-benzodioxole-5-carbaldehyde|CS-0072177|4720-68-7 https://www.jk-sci.com/products/ts246cs-0077243 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/27b2bd1e87de1a95d07b94769419577c.jpg?v=1776461070 4-Bromo-1-(difluoromethoxy)-2-fluorobenzene | 147992-27-6 4-Bromo-1-(difluoromethoxy)-2-fluorobenzene|CS-0077243|147992-27-6 https://www.jk-sci.com/products/ts246cs-0072769 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/593399.png?v=1776460394 4-(4-Iodophenyl)-1,3-thiazol-2-amine | 31699-14-6 4-(4-Iodophenyl)-1,3-thiazol-2-amine|CS-0072769|31699-14-6 https://www.jk-sci.com/products/ts246cs-0077143 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/594657_8bd1a595-016f-4dd8-aa74-05448cdd842d.png?v=1776461053 2,2-Dimethylpropane-1,3-diamine | 7328-91-8 2,2-Dimethylpropane-1,3-diamine|CS-0077143|7328-91-8 https://www.jk-sci.com/products/ts246cs-0078588 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3c3768d9b3f609efe22a3933bd6c35a5.jpg?v=1776461193 4-Chloro-6-(methylthio)-1H-pyrazolo[3,4-d]pyrimidine | 85426-79-5 4-Chloro-6-(methylthio)-1H-pyrazolo[3,4-d]pyrimidine|CS-0078588|85426-79-5 https://www.jk-sci.com/products/s57c4x-18199 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/ts246cs-0078604 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/21a85d47e2f98d20023939daa4bc6c9d.jpg?v=1776461216 2-Methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile | 1231892-37-7 2-Methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile|CS-0078604|1231892-37-7 https://www.jk-sci.com/products/j5315025 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c3a46110662e7c88ed30d05288d74e76.jpg?v=1776331917 Boc-(R,S)-(3-aminomethyl)piperidine | 162167-97-7 Boc-(R,S)-(3-aminomethyl)piperidine|15025|162167-97-7 https://www.jk-sci.com/products/s57c4x-182640 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2c4779b94a9269244a0d877fb5eedf27.jpg?v=1776415144 Iguratimod Impurity 40 | 1179354-65-4 Iguratimod Impurity 40|C4X-182640|1179354-65-4 https://www.jk-sci.com/products/ts246cs-0078675 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/652881_39bb7153-1437-47d4-8e35-b39f7a3e6402.png?v=1776461246 4-Methyl-2-(methylthio)pyrimidine-5-carboxylic acid | 98276-75-6 4-Methyl-2-(methylthio)pyrimidine-5-carboxylic acid|CS-0078675|98276-75-6 https://www.jk-sci.com/products/ts246cs-0078842 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/70f5203cb2172a13bde0f7e507488c39.jpg?v=1776461264 2-Amino-N-isopropylbenzenesulfonamide | 761435-31-8 2-Amino-N-isopropylbenzenesulfonamide|CS-0078842|761435-31-8 https://www.jk-sci.com/products/s57c4x-182611 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/460727_7a5864d4-4689-4040-bbb1-e247b3d2764e.png?v=1774666900 Iguratimod Impurity 11 | 16156-59-5 Iguratimod Impurity 11|C4X-182611|16156-59-5 https://www.jk-sci.com/products/ts246cs-0079201 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/92a7eba62e8923d6ad827a381e9ff731.jpg?v=1776461316 tert-Butyl 3-(2-bromoethyl)azetidine-1-carboxylate | 1420859-80-8 tert-Butyl 3-(2-bromoethyl)azetidine-1-carboxylate|CS-0079201|1420859-80-8 https://www.jk-sci.com/products/s57c4x-182681 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/ts246cs-0079505 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/040133ce64e7f0151428eb056c0d04ff.jpg?v=1776461362 Adamantanine | 42381-05-5 Adamantanine|CS-0079505|42381-05-5 https://www.jk-sci.com/products/s57c4x-182929 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/141772_4edc0867-92ca-4c18-8f03-2d31dce7648f.png?v=1774902046 Letrozole Impurity 29 | 612-13-5 Letrozole Impurity 29|C4X-182929|612-13-5 https://www.jk-sci.com/products/ts246cs-0080221 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/313018.png?v=1776461546 N-Acetylsulfanilamide | 121-61-9 N-Acetylsulfanilamide|CS-0080221|121-61-9 https://www.jk-sci.com/products/ts246cs-0079689 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a25af3baf9f9310dedaf999d5bb475d9.jpg?v=1776461420 Ethyl 4-(hydroxymethyl)piperidine-1-carboxylate | 118156-56-2 Ethyl 4-(hydroxymethyl)piperidine-1-carboxylate|CS-0079689|118156-56-2 https://www.jk-sci.com/products/ts246cs-0079898 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/509987_7d6df6cb-1c5e-4e21-9b76-59bad86017eb.png?v=1776461461 Propan-1-amine hydrochloride | 556-53-6 Propan-1-amine hydrochloride|CS-0079898|556-53-6 https://www.jk-sci.com/products/ts246cs-0080319 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/776ea7fdce44fa3263f0517a19e6d0ac.jpg?v=1776461566 tert-Butyl 4-methoxypiperidine-1-carboxylate | 188622-27-7 tert-Butyl 4-methoxypiperidine-1-carboxylate|CS-0080319|188622-27-7 https://www.jk-sci.com/products/s57c4x-18304 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/efb16b5dbf0e386d8a26994595f1abae.jpg?v=1776415177 Lacosamide EP Impurity C (R-isomer) | 2742962-60-1 Lacosamide EP Impurity C (R-isomer)|C4X-18304|2742962-60-1 https://www.jk-sci.com/products/ts246cs-0080476 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ea7e5ff5d09e126ed194b541f82751a3.jpg?v=1776461639 5-(4-Ethylphenyl)-3-(trifluoromethyl)-1H-pyrazole | 1037420-88-4 5-(4-Ethylphenyl)-3-(trifluoromethyl)-1H-pyrazole|CS-0080476|1037420-88-4 https://www.jk-sci.com/products/ts246cs-0080522 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3cbb261338ca8030c763cf002d3295f5.jpg?v=1776461669 (2-Methylimidazo[2,1-b][1,3,4]thiadiazol-6-yl)methanamine | 933734-68-0 (2-Methylimidazo[2,1-b][1,3,4]thiadiazol-6-yl)methanamine|CS-0080522|933734-68-0 https://www.jk-sci.com/products/ts246cs-0080417 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/eecd66184a227e0f5374cee1e470d1c5.jpg?v=1776461602 Pyrazolo[1,5-a]pyrimidin-7-ol | 57489-79-9 Pyrazolo[1,5-a]pyrimidin-7-ol|CS-0080417|57489-79-9 https://www.jk-sci.com/products/ts246cs-0080408 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5ceb99de706254938e8396a8363bda03.jpg?v=1776461596 (5-(Trifluoromethyl)-1H-pyrazol-3-yl)methanol | 169213-73-4 (5-(Trifluoromethyl)-1H-pyrazol-3-yl)methanol|CS-0080408|169213-73-4 https://www.jk-sci.com/products/ts246cs-0080570 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/314842.png?v=1776461675 Se-Methylselenocysteine | 26046-90-2 Se-Methylselenocysteine|CS-0080570|26046-90-2 https://www.jk-sci.com/products/ts246cs-0080509 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/301327.png?v=1776461660 1,4-Bis(trimethylsilyl)benzene | 13183-70-5 1,4-Bis(trimethylsilyl)benzene|CS-0080509|13183-70-5 https://www.jk-sci.com/products/ts246cs-0080449 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/148655.png?v=1776461628 5-(tert-Butyl)-3-(trifluoromethyl)-1H-pyrazole | 150433-22-0 5-(tert-Butyl)-3-(trifluoromethyl)-1H-pyrazole|CS-0080449|150433-22-0 https://www.jk-sci.com/products/s57c4x-18322 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/af1ba67bbdcc704a52e06486a592a608.jpg?v=1776415192 Iopromide EP Impurity B | 76350-28-2 Iopromide EP Impurity B|C4X-18322|76350-28-2 https://www.jk-sci.com/products/ts246cs-0080631 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/140793.png?v=1776461692 Palladium(II) oxide | 1314-08-5 Palladium(II) oxide|CS-0080631|1314-08-5 https://www.jk-sci.com/products/s57c4x-183336 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dfd2334a01cb4c1d83dd20c443c15cf9.jpg?v=1776415214 Peramivir Impurity 36 | 383910-25-6 Peramivir Impurity 36|C4X-183336|383910-25-6 https://www.jk-sci.com/products/j5315036 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3bf1d3ba4784c00ff33e841b3d8ee90c.jpg?v=1776331952 Fmoc-(S)-4-aminopentanoic acid | 1014018-41-7 Fmoc-(S)-4-aminopentanoic acid|15036|1014018-41-7 https://www.jk-sci.com/products/j5315060 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3ebbea1de66c99fdf2cc77db541e471b.jpg?v=1776332028 Fmoc-(R,S)-3-amino-3-(biphenyl)propionic acid | 269078-79-7 Fmoc-(R,S)-3-amino-3-(biphenyl)propionic acid|15060|269078-79-7 https://www.jk-sci.com/products/j5315050 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/288602f140b6df3d873bfe8480f061ba.jpg?v=1776331997 Fmoc-(S)-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid | 141636-66-0 Fmoc-(S)-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid|15050|141636-66-0 https://www.jk-sci.com/products/s57c4x-183371 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2eaf0200df38ec1a93dfa1e926e36b14.jpg?v=1776415224 Peramivir impurity 71 | 229614-37-3 Peramivir impurity 71|C4X-183371|229614-37-3 https://www.jk-sci.com/products/s57c4x-18355 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/j5315073 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/42f60f80735048fd6f19c9a8c1ea843a.jpg?v=1776332065 Fmoc-(1S,2S)-2-aminocyclopentane carboxylic acid | 359586-64-4 Fmoc-(1S,2S)-2-aminocyclopentane carboxylic acid|15073|359586-64-4 https://www.jk-sci.com/products/s57c4x-1835 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/521810_c804537a-5fa6-4995-b107-b7217352c166.png?v=1775135511 Hydroxychloroquine sulfate | 747-36-4 Hydroxychloroquine sulfate|C4X-1835|747-36-4 https://www.jk-sci.com/products/s57c4x-18361 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/795154_d403d07e-1a29-43a7-9a34-a022c5725adc.png?v=1774903105 Torasemide EP Impurity A | 72810-61-8 Torasemide EP Impurity A|C4X-18361|72810-61-8 https://www.jk-sci.com/products/ts246cs-0080671 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9359c933993a44f0a6beb37eaa45b624.jpg?v=1776461707 Ethyl 5-oxo-5H-thiazolo[3,2-a]pyrimidine-6-carboxylate | 32278-52-7 Ethyl 5-oxo-5H-thiazolo[3,2-a]pyrimidine-6-carboxylate|CS-0080671|32278-52-7 https://www.jk-sci.com/products/ts246cs-0080694 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9f46c43bf8100369a2ee70fa3ef36bc4.jpg?v=1776461725 Bis(2,26,6Tetramethylheptanedionato)palladium(II) | 15214-66-1 Bis(2,26,6Tetramethylheptanedionato)palladium(II)|CS-0080694|15214-66-1 https://www.jk-sci.com/products/s57c4x-18372 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_bbab78ee-debe-4814-bd94-f2cd38b24a1c.png?v=1774672897 rac-Clemastine Fumarate EP Impurity B HCl rac-Clemastine Fumarate EP Impurity B HCl|C4X-18372 https://www.jk-sci.com/products/j5315089 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/da58e2993fff527f323bee824842d5fc.jpg?v=1776332114 (R)-3-Fmoc-amino-5-(carboxylmethyl)-2,3-dihydro-1,5-benzothiazepin-4(5H)-one | 1217619-78-7 (R)-3-Fmoc-amino-5-(carboxylmethyl)-2,3-dihydro-1,5-benzothiazepin-4(5H)-one|15089|1217619-78-7 https://www.jk-sci.com/products/s57c4x-184013 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/82526172b2e094895e53482b1e8bfc2d.jpg?v=1776415297 Epinastine Impurity 13 HCl | 141342-69-0 Epinastine Impurity 13 HCl|C4X-184013|141342-69-0 https://www.jk-sci.com/products/s57c4x-18384 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-184024 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-184030 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_fc567763-aa9a-4bfc-b059-1a29e3b8cd82.png?v=1774733295 Epinastine Impurity 30 Epinastine Impurity 30|C4X-184030 https://www.jk-sci.com/products/s57c4x-1838 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/478074_bd36764b-dca7-425b-b3ca-1db3d9d6cbff.png?v=1775135516 Betahistine Dihydrochloride | 5579-84-0 Betahistine Dihydrochloride|C4X-1838|5579-84-0 https://www.jk-sci.com/products/s57c4x-18407 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e1d33e6cbd28812595c365e165078972.jpg?v=1776415315 Epinastine EP Impurity B | 1217052-16-8 Epinastine EP Impurity B|C4X-18407|1217052-16-8 https://www.jk-sci.com/products/ts246cs-0080725 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cbc1acaa537e18effea06892df20ee29.jpg?v=1776461748 Potassium hexachloropalladate(IV) | 16919-73-6 Potassium hexachloropalladate(IV)|CS-0080725|16919-73-6 https://www.jk-sci.com/products/j5315119 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/623916eb15971fd61b3d29f73f4c55d9.jpg?v=1776332213 Fmoc-2-nitro-L-phenylalanine | 210282-30-7 Fmoc-2-nitro-L-phenylalanine|15119|210282-30-7 https://www.jk-sci.com/products/s57c4x-184214 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/466111_0c62cb98-edd7-4e32-a8df-36176f5f1bb8.png?v=1774734530 Paclitaxel EP Impurity N | 27548-93-2 Paclitaxel EP Impurity N|C4X-184214|27548-93-2 https://www.jk-sci.com/products/j5315103 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2173a748f96d3fd735b58b17d2b130eb_6122019c-6141-4cb6-a8f7-6810a12c8e1f.jpg?v=1776332159 Boc-2-nitro-L-phenylalanine | 185146-84-3 Boc-2-nitro-L-phenylalanine|15103|185146-84-3 https://www.jk-sci.com/products/s57c4x-184223 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/j5315140 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ec488aa5353760dbde2f3bc19b718669.jpg?v=1776332261 Piperacillin sodium salt | 59703-84-3 Piperacillin sodium salt|15140|59703-84-3 https://www.jk-sci.com/products/s57c4x-184231 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0c4ed4eef91e0643b3dc64b4ae1c5889.jpg?v=1776415330 Paclitaxel Impurity 31 | 171926-87-7 Paclitaxel Impurity 31|C4X-184231|171926-87-7 https://www.jk-sci.com/products/s57c4x-18427 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/150233_54d36d69-ab97-4603-a1d6-3ec38c78f6ce.png?v=1774660006 Paclitaxel EP Impurity G | 78432-77-6 Paclitaxel EP Impurity G|C4X-18427|78432-77-6 https://www.jk-sci.com/products/s57c4x-18441 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/23634c29d5ca3592fdeb63bf4145ab4c.jpg?v=1776415348 Amphotericin B Impurity 1(Amphotericin B Methyl Ester) | 36148-89-7 Amphotericin B Impurity 1(Amphotericin B Methyl Ester)|C4X-18441|36148-89-7 https://www.jk-sci.com/products/ts246cs-0070212 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3d08ff7d70b28f748a886ac31129278d.jpg?v=1776459746 1-(4-Fluorobenzyl)-6-oxo-1,6-dihydropyridine-3-carboxylic acid | 941869-20-1 1-(4-Fluorobenzyl)-6-oxo-1,6-dihydropyridine-3-carboxylic acid|CS-0070212|941869-20-1 https://www.jk-sci.com/products/s57c4x-184914 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d9730ce4d63831cef776f9f101fb5728.jpg?v=1776415359 D-(+)-Epinephrine | 150-05-0 D-(+)-Epinephrine|C4X-184914|150-05-0 https://www.jk-sci.com/products/s57c4x-184730 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/51f264ec7fa08b21b4a2040bfbd97e96_e31eb16b-aa65-4943-b56c-614f02a799df.jpg?v=1776415356 Bosutinib Impurity 30 | 4128-37-4 Bosutinib Impurity 30|C4X-184730|4128-37-4 https://www.jk-sci.com/products/s57c4x-184511 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/310762_054bf543-e55b-43c2-8e38-d8d15ee6f275.png?v=1774967150 Neomycin Sulfate EP Impurity A | 3947-65-7 Neomycin Sulfate EP Impurity A|C4X-184511|3947-65-7 https://www.jk-sci.com/products/s57c4x-184942 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/145930ac83481014e97895ca58429628.jpg?v=1776415375 Adrenaline Impurity 42 | 18191-22-5 Adrenaline Impurity 42|C4X-184942|18191-22-5 https://www.jk-sci.com/products/ts246cs-0072572 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4bf3a2bee8d665f2c31decc5e9597025.jpg?v=1776460347 5-Iodo-2-nitrobenzoic acid | 35674-28-3 5-Iodo-2-nitrobenzoic acid|CS-0072572|35674-28-3 https://www.jk-sci.com/products/ts246cs-0074195 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/487570_d6d3b932-1de2-4d96-bf29-ed4bf4604184.png?v=1776460585 4-Amino-N,N-dimethylbenzenesulfonamide | 1709-59-7 4-Amino-N,N-dimethylbenzenesulfonamide|CS-0074195|1709-59-7 https://www.jk-sci.com/products/s57c4x-184931 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b9285ccb6407bef3e1f2b4c901e23f3e.jpg?v=1776415362 Adrenaline EP Impurity F | 78995-75-2 Adrenaline EP Impurity F|C4X-184931|78995-75-2 https://www.jk-sci.com/products/ts246cs-0075548 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9cfe7a413d4a6298b09c439f3ac90296.jpg?v=1776460779 6-Ethynylnicotinonitrile | 1211588-35-0 6-Ethynylnicotinonitrile|CS-0075548|1211588-35-0 https://www.jk-sci.com/products/ts246cs-0076451 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/38b1ea256e57d84b5d68974a5b142daa.jpg?v=1776460909 tert-Butyl (1-(3-aminopyridin-2-yl)piperidin-3-yl)carbamate | 1052705-54-0 tert-Butyl (1-(3-aminopyridin-2-yl)piperidin-3-yl)carbamate|CS-0076451|1052705-54-0 https://www.jk-sci.com/products/s57c4x-18496 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1f48a4f865dba1fa5e87083b3ce7fd7d.jpg?v=1776415392 Rac-Adrenaline EP Impurity F (Epinephrine Sulfonic Acid) | 26405-77-6 Rac-Adrenaline EP Impurity F (Epinephrine Sulfonic Acid)|C4X-18496|26405-77-6 https://www.jk-sci.com/products/j5315151 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e0b653ae39d7c4f79e161faaf6411507.jpg?v=1776332276 Aztreonam | 78110-38-0 Aztreonam|15151|78110-38-0 https://www.jk-sci.com/products/ts246cs-0077000 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/64f7bee28cc312ba05f9248c720cf449.jpg?v=1776461039 1-Cyclopropyl-2-(triphenylphosphoranylidene)ethanone | 7691-76-1 1-Cyclopropyl-2-(triphenylphosphoranylidene)ethanone|CS-0077000|7691-76-1 https://www.jk-sci.com/products/s57c4x-184954 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_471c4685-6514-4db9-9e35-d9b237b890cb.png?v=1774900783 Adrenalone Hydrochloride Hydrate Adrenalone Hydrochloride Hydrate|C4X-184954 https://www.jk-sci.com/products/ts246cs-0077363 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/140167.png?v=1776461090 2-Amino-N-cyclopropylacetamide hydrochloride | 670253-51-7 2-Amino-N-cyclopropylacetamide hydrochloride|CS-0077363|670253-51-7 https://www.jk-sci.com/products/s57c4x-184970 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/69b05d0b97bb10b806921593450fa9d9.jpg?v=1776415395 Metanephrine HCl | 881-95-8 Metanephrine HCl|C4X-184970|881-95-8 https://www.jk-sci.com/products/s57c4x-185061 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/47022daff257eb559db5e0f6ea690b81.jpg?v=1776415411 Atracurium Besilate EP Impurity E | 1075727-06-8 Atracurium Besilate EP Impurity E|C4X-185061|1075727-06-8 https://www.jk-sci.com/products/ts246cs-0078597 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4787373ff49836fe0391de262b141296.jpg?v=1776461205 8-Methyl-8-azabicyclo[3.2.1]octan-3-amine | 98998-25-5 8-Methyl-8-azabicyclo[3.2.1]octan-3-amine|CS-0078597|98998-25-5 https://www.jk-sci.com/products/s57c4x-185012 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e10cdafedc1f52bf3f021fb82552807e.jpg?v=1776415398 Cisatracurium Besylate EP Impurity O | 2803857-42-1 Cisatracurium Besylate EP Impurity O|C4X-185012|2803857-42-1 https://www.jk-sci.com/products/s57c4x-185020 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/418f9dfca4c1d71df64dee0d3281c5c1.jpg?v=1776415401 Cisatracurium EP Impurity F Besylate | 1100676-16-1 Cisatracurium EP Impurity F Besylate|C4X-185020|1100676-16-1 https://www.jk-sci.com/products/ts246cs-0078737 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/63574501086894d798549665f0046d09.jpg?v=1776461255 N-Boc-PEG5-bromide | 1392499-32-9 N-Boc-PEG5-bromide|CS-0078737|1392499-32-9 https://www.jk-sci.com/products/ts246cs-0079250 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/193190b55dcc1c07a6a836c06c799f18.jpg?v=1776461345 tert-Butyl (R)-3-methoxypyrrolidine-1-carboxylate | 549532-08-3 tert-Butyl (R)-3-methoxypyrrolidine-1-carboxylate|CS-0079250|549532-08-3 https://www.jk-sci.com/products/s57c4x-18508 2026-07-21T11:21:14-07:00 daily https://www.jk-sci.com/products/s57c4x-185436 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d3fdc0f262896cbd887d76352e266591.jpg?v=1776415433 Arotinolol Impurity 36 | 52561-15-6 Arotinolol Impurity 36|C4X-185436|52561-15-6 https://www.jk-sci.com/products/s57c4x-18546 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9b66537faea4a5a9d20cd2df6079dac2.jpg?v=1776415439 Methyl 5-acetylthiophene-2-carboxylate(Arotinolol Impurity 6) | 4101-81-9 Methyl 5-acetylthiophene-2-carboxylate(Arotinolol Impurity 6)|C4X-18546|4101-81-9 https://www.jk-sci.com/products/s57c4x-185416 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_1c85baf1-276d-45cc-ac60-f13a124c4c95.png?v=1774965651 Arotinolol Impurity 16 Arotinolol Impurity 16|C4X-185416 https://www.jk-sci.com/products/s57c4x-1854 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/361080_f15c0062-61eb-4243-9765-3ce329acb811.png?v=1774717560 Arotinolol Hydrochloride | 68377-91-3 Arotinolol Hydrochloride|C4X-1854|68377-91-3 https://www.jk-sci.com/products/ts246cs-0079633 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/65f9e228fc58f1fb63d1412cf9e0adbe.jpg?v=1776461388 (S)-tert-Butyl 3-(2-methoxy-2-oxoethyl)piperidine-1-carboxylate | 1217737-76-2 (S)-tert-Butyl 3-(2-methoxy-2-oxoethyl)piperidine-1-carboxylate|CS-0079633|1217737-76-2 https://www.jk-sci.com/products/s57c4x-1855 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/158047_2713ce61-4e42-4619-9355-afeb621def87.png?v=1774974543 Aminophylline | 317-34-0 Aminophylline|C4X-1855|317-34-0 https://www.jk-sci.com/products/s57c4x-18556 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/403258_f2df5b31-27c7-4ddf-be83-43d612e5d47e.png?v=1775070465 Aminophylline EP Impurity F | 519-37-9 Aminophylline EP Impurity F|C4X-18556|519-37-9 https://www.jk-sci.com/products/s57c4x-185810 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_e30e2123-a7f8-4e2a-867f-c896af8a4c15.png?v=1775156329 Trimebutine Impurity 10 Trimebutine Impurity 10|C4X-185810 https://www.jk-sci.com/products/ts246cs-0080070 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/02a8dcbdd1032d7f467009f5997bdb32.jpg?v=1776461517 Dipyrazino[2,3-f:2',3'-h]quinoxaline-2,3,6,7,10,11-hexacarbonitrile | 105598-27-4 Dipyrazino[2,3-f:2',3'-h]quinoxaline-2,3,6,7,10,11-hexacarbonitrile|CS-0080070|105598-27-4 https://www.jk-sci.com/products/ts246cs-0080362 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/638e01285e700b2491dfb5cb2f2e9bd9.jpg?v=1776461584 Ethyl 2-chloropyrazolo[1,5-a]pyrimidine-3-carboxylate | 1394003-65-6 Ethyl 2-chloropyrazolo[1,5-a]pyrimidine-3-carboxylate|CS-0080362|1394003-65-6 https://www.jk-sci.com/products/ts246cs-0080438 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a68fdadeb98139348913de65cc02045b.jpg?v=1776461616 5-Oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-3-carbonitrile | 1224288-95-2 5-Oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-3-carbonitrile|CS-0080438|1224288-95-2 https://www.jk-sci.com/products/ts246cs-0080496 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/25ade36e0be7b41e00ffb765e1918b46.jpg?v=1776461654 Ethyl 3-amino-5-(trifluoromethyl)-1H-pyrazole-4-carboxylate | 133922-58-4 Ethyl 3-amino-5-(trifluoromethyl)-1H-pyrazole-4-carboxylate|CS-0080496|133922-58-4 https://www.jk-sci.com/products/ts246cs-0080555 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7e0d469e9fb6962c9367a6216ddde405.jpg?v=1776461672 Ir[dFFppy]2-(4,4'-dCF3bpy)PF6 | 2030437-92-2 Ir[dFFppy]2-(4,4'-dCF3bpy)PF6|CS-0080555|2030437-92-2 https://www.jk-sci.com/products/s57c4x-185818 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c7c2921923d4627cbdcbc6b0896b9ffb.jpg?v=1776415451 Trimebutine Impurity 18 | 118291-70-6 Trimebutine Impurity 18|C4X-185818|118291-70-6 https://www.jk-sci.com/products/j5315164 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/66fac221af161d980204505612c1683b.jpg?v=1776332303 Dicloxacillin Sodium | 13412-64-1 Dicloxacillin Sodium|15164|13412-64-1 https://www.jk-sci.com/products/s57c4x-18584 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/61d0907d981e9073b2824eb01c024cfb.jpg?v=1776415454 Trimebutine EP Impurity D | 92414-09-0 Trimebutine EP Impurity D|C4X-18584|92414-09-0 https://www.jk-sci.com/products/s57c4x-186012 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/795958_6d1e27c0-f2e8-4481-bb67-2490a1c83687.png?v=1774886951 Tigecycline Impurity 12 | 149934-21-4 Tigecycline Impurity 12|C4X-186012|149934-21-4 https://www.jk-sci.com/products/s57c4x-18613 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e93165989db984e98b907ecdfa039d58.jpg?v=1776415472 Nikethamide Impurity 3 | 68254-63-7 Nikethamide Impurity 3|C4X-18613|68254-63-7 https://www.jk-sci.com/products/j5315211 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e4bd5c4d7c5f2146d9aa563fdb00389c.jpg?v=1776332346 (+)-(1R,4S)-4-Aminocyclopent-2-enecarboxylic acid | 134003-04-6 (+)-(1R,4S)-4-Aminocyclopent-2-enecarboxylic acid|15211|134003-04-6 https://www.jk-sci.com/products/ts246cs-0080670 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b67d86bbbf677d09978b685e30a3bda7.jpg?v=1776461704 DavePhos Pd G3 | 1445085-87-9 DavePhos Pd G3|CS-0080670|1445085-87-9 https://www.jk-sci.com/products/s57c4x-186231 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/381172_9d68408b-e9a5-4ea9-8f40-bbc19db15ee4.png?v=1774965664 Pyr-His-Trp-Ser-Tyr-D-Trp-Leu-Arg-Pro-Gly-Leu-Arg-Pro-Gly-NH2 Pyr-His-Trp-Ser-Tyr-D-Trp-Leu-Arg-Pro-Gly-Leu-Arg-Pro-Gly-NH2|C4X-186231 https://www.jk-sci.com/products/s57c4x-1862 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2839bc4d95f553bf8bdb45c0e00df6ac.jpg?v=1776415475 Triptorelin Acetate | 140194-24-7 Triptorelin Acetate|C4X-1862|140194-24-7 https://www.jk-sci.com/products/ts246cs-0080700 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/791370cd728124093ceeacaea354145c.jpg?v=1776461731 O-(2-Methylbenzyl)hydroxylamine | 75959-26-1 O-(2-Methylbenzyl)hydroxylamine|CS-0080700|75959-26-1 https://www.jk-sci.com/products/s57c4x-186236 2026-07-21T11:21:14-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_6884754e-2238-4124-8296-c8f6c5884441.png?v=1775072876 pGlu-His-L-Trp-Ser-Tyr-D-Trp-Leu-Arg-Pro-NH2 pGlu-His-L-Trp-Ser-Tyr-D-Trp-Leu-Arg-Pro-NH2|C4X-186236