https://www.jk-sci.com/products/j5307334 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f05aa8256ff1b39a09ae58b9533f8cae.jpg?v=1776327944 Boc-(R,S)-1,3-dihydro-2H-isoindole carboxylic acid | 221352-46-1 Boc-(R,S)-1,3-dihydro-2H-isoindole carboxylic acid|07334|221352-46-1 https://www.jk-sci.com/products/s57c4x-11242 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-113938 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-113549 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_2a0bb4b7-e1c4-4115-b434-6c7667cefc2b.png?v=1774721979 Olaparib Impurity 49 Olaparib Impurity 49|C4X-113549 https://www.jk-sci.com/products/s57c4x-113260 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/272656_a39b808a-5642-46a9-808d-81b65a517966.png?v=1774896490 Atorvastatin Impurity 60 | 124401-38-3 Atorvastatin Impurity 60|C4X-113260|124401-38-3 https://www.jk-sci.com/products/s57c4x-114020 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/299604d0d53c4db6deca0dc38aec81d5_1aac2afa-5d16-4943-b209-daf3c0c1725f.jpg?v=1776408223 Lenvatinib Impurity 20 | 417721-36-9 Lenvatinib Impurity 20|C4X-114020|417721-36-9 https://www.jk-sci.com/products/s57c4x-11414 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ae45090f9d6520cc71ef2602e89f67c6.jpg?v=1776408267 Aprepitant Impurity 4 | 172822-29-6 Aprepitant Impurity 4|C4X-11414|172822-29-6 https://www.jk-sci.com/products/s57c4x-113217 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b41873bbae1624a69b2fc65e906107b9.jpg?v=1776407945 Atorvastatin Epoxy Tetrahydrofuran Impurity | 873950-19-7 Atorvastatin Epoxy Tetrahydrofuran Impurity|C4X-113217|873950-19-7 https://www.jk-sci.com/products/j5307401 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/501ec81693e1e0c535c29d81ae8f16ba.jpg?v=1776328147 Boc-2-bromo-D-phenylalanine | 261360-76-3 Boc-2-bromo-D-phenylalanine|07401|261360-76-3 https://www.jk-sci.com/products/j5307438 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9e83e77b3aa06bf58b108730d503d6fc.jpg?v=1776328259 b-(3-Thienyl)-L-alanine | 3685-51-6 b-(3-Thienyl)-L-alanine|07438|3685-51-6 https://www.jk-sci.com/products/s57c4x-1144110 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f6e8397663b34013ba48ecaa0fd771ab.jpg?v=1776408283 Sitagliptin Impurity 110 | 1305324-02-0 Sitagliptin Impurity 110|C4X-1144110|1305324-02-0 https://www.jk-sci.com/products/s57c4x-114427 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5ba5cc9944b1a849da144b8e046d3a46_e71fb6b0-8618-446b-a662-d673fa7fe0a9.jpg?v=1776408307 Sitagliptin Intermediates Impurity | 762240-92-6 Sitagliptin Intermediates Impurity|C4X-114427|762240-92-6 https://www.jk-sci.com/products/s57c4x-114446 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1020872_02bdb876-bbfb-467f-88b7-08b3acd76411.png?v=1774886682 Sitagliptin Monophosphate Monohydrate | 654671-77-9 Sitagliptin Monophosphate Monohydrate|C4X-114446|654671-77-9 https://www.jk-sci.com/products/s57c4x-114476 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/337797_9fd20001-741d-4097-a908-7d7c87f812c9.png?v=1774664625 Sitagliptin Impurity 76 | 209995-38-0 Sitagliptin Impurity 76|C4X-114476|209995-38-0 https://www.jk-sci.com/products/j5307376 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/259c63311f06e701d509c0251305a4da.jpg?v=1776328062 3-(4-Thiazolyl)-L-alanine | 119433-80-6 3-(4-Thiazolyl)-L-alanine|07376|119433-80-6 https://www.jk-sci.com/products/s57c4x-113868 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0cbe2205b41989f6294c10879e6ccbdd.jpg?v=1776408166 Dapagliflozin Impurity 68 | 1103738-29-9 Dapagliflozin Impurity 68|C4X-113868|1103738-29-9 https://www.jk-sci.com/products/s57c4x-11312 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c87d45109b57899ade475d13a71462c2_d6e28084-431e-4cea-a3ff-6463da596086.jpg?v=1776407851 Brexpiprazole Impurity 2 | 913614-18-3 Brexpiprazole Impurity 2|C4X-11312|913614-18-3 https://www.jk-sci.com/products/j5307510 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f65f598577955496321bb228082ebf8e.jpg?v=1776328306 Z-Gly-Gly-Phe-OH | 13171-93-2 Z-Gly-Gly-Phe-OH|07510|13171-93-2 https://www.jk-sci.com/products/s57c4x-114612 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5307871 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a2fe75dd4fd568f5cf822bc4b12aec87.jpg?v=1776328372 Na-Boc-Nd-pyrazinylcarbonyl-L-ornithine | 201046-36-8 Na-Boc-Nd-pyrazinylcarbonyl-L-ornithine|07871|201046-36-8 https://www.jk-sci.com/products/s57c4x-11491 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/38ca474005b85a826e15af74ebb8631c.jpg?v=1776408408 Cefoperazone EP Impurity B | 711598-76-4 Cefoperazone EP Impurity B|C4X-11491|711598-76-4 https://www.jk-sci.com/products/s57c4x-11481 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2fa3beacc6191a42bf6b7b01ecf528ad.jpg?v=1776408366 Amoxicillin EP Impurity C | 2088961-37-7 Amoxicillin EP Impurity C|C4X-11481|2088961-37-7 https://www.jk-sci.com/products/s57c4x-114832 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-11497 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/408646_59921d8d-b776-47bd-b63d-3d215662bfce.png?v=1774966858 Cefoperazone Impurity 7 | 24209-38-9 Cefoperazone Impurity 7|C4X-11497|24209-38-9 https://www.jk-sci.com/products/j5307587 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/63655acd0aac4d456ddcbc33f1a73877.jpg?v=1776328319 Z-Pro-Gly-NH2 | 35010-96-9 Z-Pro-Gly-NH2|07587|35010-96-9 https://www.jk-sci.com/products/j5308027 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5b7fef9d38a6fe5d34fab460e1b44d49.jpg?v=1776328409 DL-b-Phenyllactic acid | 828-01-3 DL-b-Phenyllactic acid|08027|828-01-3 https://www.jk-sci.com/products/s57c4x-11544 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5f483922cb59faafcb3045e6ea8b55ab.jpg?v=1776408460 Methotrexate EP Impurity D | 5623-18-7 Methotrexate EP Impurity D|C4X-11544|5623-18-7 https://www.jk-sci.com/products/s57c4x-11541 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/444225_744e93b2-6fed-4437-997d-4baafeceb182.png?v=1775153094 Methotrexate EP Impurity A | 945-24-4 Methotrexate EP Impurity A|C4X-11541|945-24-4 https://www.jk-sci.com/products/s57c4x-115533 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_0c1f97e9-5742-48c4-a94e-bbc028faf15e.png?v=1774661961 Sitafloxacin Impurity 33 Sitafloxacin Impurity 33|C4X-115533 https://www.jk-sci.com/products/j5308117 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/047b7fc4e1bb255cfcdce410db2b0e69.jpg?v=1776328468 For-L-norleucine | 133388-96-2 For-L-norleucine|08117|133388-96-2 https://www.jk-sci.com/products/j5308468 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d80d8d29167e861b70fd2c5c54cf19ea.jpg?v=1776328573 DL-Tryptophan ethyl ester hydrochloride | 6519-67-1 DL-Tryptophan ethyl ester hydrochloride|08468|6519-67-1 https://www.jk-sci.com/products/j5308460 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b4541c306af992edbf5e95e8f2f89609.jpg?v=1776328546 DL-Norleucine methyl ester hydrochloride | 77300-48-2 DL-Norleucine methyl ester hydrochloride|08460|77300-48-2 https://www.jk-sci.com/products/j5308379 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e06ad22a33a584fc96e6ffd57f2eade0.jpg?v=1776328515 Ng-(2-Acetamido-2-deoxy-b-D-gluco-pyranosyl)-L-asparagine | 2776-93-4 Ng-(2-Acetamido-2-deoxy-b-D-gluco-pyranosyl)-L-asparagine|08379|2776-93-4 https://www.jk-sci.com/products/j5309543 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/63006b1437788e85ae3e378a7fe4dfb9.jpg?v=1776328854 N,N-Dimethyl-histidine methyl ester | 170227-64-2 N,N-Dimethyl-histidine methyl ester|09543|170227-64-2 https://www.jk-sci.com/products/j5308613 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/564f7931b59a6d1db28c9d6f1c47e5fe.jpg?v=1776328628 Gly-Gly-Gly-OEt·HCl | 16194-06-2 Gly-Gly-Gly-OEt·HCl|08613|16194-06-2 https://www.jk-sci.com/products/j5308486 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a32752ec1e56878d1cd87cce777a5964.jpg?v=1776328587 D-Val-D-Val-OH | 62653-78-5 D-Val-D-Val-OH|08486|62653-78-5 https://www.jk-sci.com/products/s57c4x-11578 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a66863e7d4e1d696991e8f9641d360d6.jpg?v=1776408501 Dextromethorphan N-Oxide（HCl） | 1177419-85-0 Dextromethorphan N-Oxide（HCl）|C4X-11578|1177419-85-0 https://www.jk-sci.com/products/s57c4x-11568 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b5f67acea68052687d268d05e6d08cbe.jpg?v=1776408482 Diosmin Impurity 8 (Mixture of Diastereomers) | 108815-81-2 Diosmin Impurity 8 (Mixture of Diastereomers)|C4X-11568|108815-81-2 https://www.jk-sci.com/products/j5308989 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9decf6662316c6bec9fd46196bc1910d.jpg?v=1776328729 Phe-Ala-OH | 3918-87-4 Phe-Ala-OH|08989|3918-87-4 https://www.jk-sci.com/products/j5309167 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/83dc7c2d064ba0236a2eca34bc658360.jpg?v=1776328803 Thr-Gly-Gly-OH | 66592-75-4 Thr-Gly-Gly-OH|09167|66592-75-4 https://www.jk-sci.com/products/j5309042 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7824e6920e06f0ca1a22fdca170d805e.jpg?v=1776328751 H-D-His(3-Me)-OH | 163750-76-3 H-D-His(3-Me)-OH|09042|163750-76-3 https://www.jk-sci.com/products/j5309646 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8552d06dabe2967ba029a71747078315.jpg?v=1776328890 N-b-Aminoethyl-Glycine | 24123-14-6 N-b-Aminoethyl-Glycine|09646|24123-14-6 https://www.jk-sci.com/products/s57c4x-116021 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/256284_52731513-2777-4550-a829-c4f0408acf57.png?v=1774962364 Methyl Desoxycholate | 3245-38-3 Methyl Desoxycholate|C4X-116021|3245-38-3 https://www.jk-sci.com/products/s57c4x-11621 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_de62ef16-327a-43fc-ad3e-a7c724d8bc1d.png?v=1775143083 Febuxostat Impurity 1 Febuxostat Impurity 1|C4X-11621 https://www.jk-sci.com/products/s57c4x-116229 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/508a9eef34af5c52498af23e1a997b99.jpg?v=1776408556 Febuxostat Impurity 29 | 144060-62-8 Febuxostat Impurity 29|C4X-116229|144060-62-8 https://www.jk-sci.com/products/s57c4x-116221 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7329d5b6f9c6d5dfa8f5770783d85552.jpg?v=1776408548 Febuxostat Impurity 21 | 407582-48-3 Febuxostat Impurity 21|C4X-116221|407582-48-3 https://www.jk-sci.com/products/s57c4x-116249 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/87bfa63fde0a5608b3d9d502fe3b71e0.jpg?v=1776408569 Febuxostat Impurity 49 | 1206550-99-3 Febuxostat Impurity 49|C4X-116249|1206550-99-3 https://www.jk-sci.com/products/s57c4x-116258 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-116269 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f4e90dfcd38b418ae19a1be10b86a05e.jpg?v=1776408584 Febuxostat Impurity 69 | 161798-01-2 Febuxostat Impurity 69|C4X-116269|161798-01-2 https://www.jk-sci.com/products/s57c4x-116279 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/379051_685d172c-f0f1-4dc9-9e2a-b2ab239fc6ed.png?v=1774987869 Febuxostat Impurity 79 | 25984-63-8 Febuxostat Impurity 79|C4X-116279|25984-63-8 https://www.jk-sci.com/products/s57c4x-116290 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_7c57e624-af76-4772-89bc-77d2adf3c81b.png?v=1774892573 Febuxostat Impurity 90 Febuxostat Impurity 90|C4X-116290 https://www.jk-sci.com/products/s57c4x-116315 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/118387_23dcaf79-05d8-416e-88f8-656c75a835b5.png?v=1775135234 Ceftriaxone Disodium | 74578-69-1 Ceftriaxone Disodium|C4X-116315|74578-69-1 https://www.jk-sci.com/products/s57c4x-116337 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/342699_4bc13aa3-f4b1-4ad1-a448-2d54e3a3d3dc.png?v=1775078647 Ceftriaxone Impurity 37 | 149-30-4 Ceftriaxone Impurity 37|C4X-116337|149-30-4 https://www.jk-sci.com/products/s57c4x-116341 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_f025ba4e-b54f-4a18-af08-c3385d581d78.png?v=1775052449 Ceftriaxone Impurity 41 | 473843-58-2 Ceftriaxone Impurity 41|C4X-116341|473843-58-2 https://www.jk-sci.com/products/j5310000 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/df4bddc46d74f36bf44aaa7f8804853a.jpg?v=1776328950 Substance P (9-11) | 40297-96-9 Substance P (9-11)|10000|40297-96-9 https://www.jk-sci.com/products/s57c4x-11641 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/516469_3ad4bce2-7db6-4c19-b666-8a5369697d1c.png?v=1775076236 Oxcarbazepine EP Impurity H | 4698-11-7 Oxcarbazepine EP Impurity H|C4X-11641|4698-11-7 https://www.jk-sci.com/products/s57c4x-116414 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/795208_3a113902-12d8-41b6-a7d1-f48157ffc8c1.png?v=1775078653 Oxcarbazepine EP Impurity C | 21737-58-6 Oxcarbazepine EP Impurity C|C4X-116414|21737-58-6 https://www.jk-sci.com/products/s57c4x-116419 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3d160dbb5144d96c2d44d4e54d216f00.jpg?v=1776408619 Oxcarbazepine EP Impurity M | 2642430-32-6 Oxcarbazepine EP Impurity M|C4X-116419|2642430-32-6 https://www.jk-sci.com/products/s57c4x-116429 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-11645 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/295253_ef7fede1-fc2f-4a61-b2b3-e00e28560692.png?v=1774660984 Oxcarbazepine EP Impurity B | 28721-09-7 Oxcarbazepine EP Impurity B|C4X-11645|28721-09-7 https://www.jk-sci.com/products/s57c4x-1165 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/308890_03b9e40f-9d55-4fc6-ae3d-3b52d0d4cceb.png?v=1775052454 Dexamethasone | 50-02-2 Dexamethasone|C4X-1165|50-02-2 https://www.jk-sci.com/products/s57c4x-116513 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6e6eba4f2a3a73173bf3cb0b31909686.jpg?v=1776408645 Dexamethasone Impurity 6 | 3949-26-6 Dexamethasone Impurity 6|C4X-116513|3949-26-6 https://www.jk-sci.com/products/s57c4x-116531 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c387bebe71a3347ebbffebb0c497a4df.jpg?v=1776408662 Dexamethasone Acid Ethyl Ester | 2991360-83-7 Dexamethasone Acid Ethyl Ester|C4X-116531|2991360-83-7 https://www.jk-sci.com/products/s57c4x-116528 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_ef0ee322-585a-4bf0-8230-85f8b4f26f57.png?v=1774734327 Dexamethasone Sodium Phosphate EP Impurity D Dexamethasone Sodium Phosphate EP Impurity D|C4X-116528 https://www.jk-sci.com/products/s57c4x-116522 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_8c9f168a-2358-4c11-a91f-a2c7f73ec726.png?v=1774886686 Dexamethasone Sodium Phosphate EP Impurity C Dexamethasone Sodium Phosphate EP Impurity C|C4X-116522 https://www.jk-sci.com/products/s57c4x-11654 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/441250_50358184-1df3-4ba5-91e2-b90d8ff2e625.png?v=1774714764 Dexamethasone EP Impurity D | 24916-90-3 Dexamethasone EP Impurity D|C4X-11654|24916-90-3 https://www.jk-sci.com/products/s57c4x-116553 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6803ee5d960c75fabdc1ad8d61fd0874.jpg?v=1776408675 Dexamethasone Impurity 53 | 426-15-3 Dexamethasone Impurity 53|C4X-116553|426-15-3 https://www.jk-sci.com/products/s57c4x-116563 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/89bd7ad1603397dfdc5780675c7b2d83.jpg?v=1776408678 Dexamethasone impurity 63 | 1202001-99-7 Dexamethasone impurity 63|C4X-116563|1202001-99-7 https://www.jk-sci.com/products/s57c4x-11659 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7cd8e8cb5c230ebc1b7fce85ac41f6db.jpg?v=1776408687 Dexamethasone EP Impurity I | 14622-47-0 Dexamethasone EP Impurity I|C4X-11659|14622-47-0 https://www.jk-sci.com/products/s57c4x-116614 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-116634 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/259654_65919b02-7c0c-4ced-84aa-1787292eea43.png?v=1774669707 Ethyl 2-propylpentanoate | 17022-31-0 Ethyl 2-propylpentanoate|C4X-116634|17022-31-0 https://www.jk-sci.com/products/s57c4x-116626 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-11665 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/596408_477c56c6-83bf-47d5-bcec-cf8c900565f7.png?v=1774664643 Sodium Valproate EP Impurity B | 20225-24-5 Sodium Valproate EP Impurity B|C4X-11665|20225-24-5 https://www.jk-sci.com/products/s57c4x-116645 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f5150de7ffa7ee77c58e3afc2659431e.jpg?v=1776408706 Sodium Valproate Impurity 42 | 258264-00-5 Sodium Valproate Impurity 42|C4X-116645|258264-00-5 https://www.jk-sci.com/products/s57c4x-116663 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_11d48d1d-df47-4126-a8c0-5535b8f156c1.png?v=1774640722 Valproate Impurity 63 Valproate Impurity 63|C4X-116663 https://www.jk-sci.com/products/s57c4x-116669 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_5f3f6c2c-f345-4c0b-91c6-2ffd0bab8e26.png?v=1774966867 Valproate Impurity 69 Valproate Impurity 69|C4X-116669 https://www.jk-sci.com/products/s57c4x-116687 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b7b702df29069cf4a663f48e42aa4ae1.jpg?v=1776408721 Valproate impurity 87 | 59726-37-3 Valproate impurity 87|C4X-116687|59726-37-3 https://www.jk-sci.com/products/s57c4x-1168 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0ceaa7b06174c3f82e4f0192332ac49b.jpg?v=1776408746 Fosaprepitant Dimeglumine | 265121-04-8 Fosaprepitant Dimeglumine|C4X-1168|265121-04-8 https://www.jk-sci.com/products/s57c4x-116714 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/454569_ac0ab54d-5a5f-414d-80f6-24600bcc236a.png?v=1774974217 4-Hydroxyquinoline | 611-36-9 4-Hydroxyquinoline|C4X-116714|611-36-9 https://www.jk-sci.com/products/s57c4x-11674 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a4e95bc68a9d103a2b71b534ad5a7633.jpg?v=1776408737 Bedaquiline Impurity 4 | 654655-69-3 Bedaquiline Impurity 4|C4X-11674|654655-69-3 https://www.jk-sci.com/products/s57c4x-1169 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2efc34114ea6ea99007650339b22aa7e.jpg?v=1776408749 Rosuvastatin Calcium | 147098-20-2 Rosuvastatin Calcium|C4X-1169|147098-20-2 https://www.jk-sci.com/products/s57c4x-116917 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_39a7e0b7-8cc1-459c-b017-de243879ce98.png?v=1774984650 Rosuvastatin EP Impurity E Calcium salt Rosuvastatin EP Impurity E Calcium salt|C4X-116917 https://www.jk-sci.com/products/s57c4x-116919 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/39836d71f0752d15efb553c1224b5738.jpg?v=1776408762 Rosuvastatin (6R)-Isomer Calcium Salt | 854898-49-0 Rosuvastatin (6R)-Isomer Calcium Salt|C4X-116919|854898-49-0 https://www.jk-sci.com/products/s57c4x-1169216 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-11694 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6f6e64271f5c6054d3a3e762d787176e.jpg?v=1776408778 Rosuvastatin EP Impurity C(Calcium Salt) | 1422514-05-3 Rosuvastatin EP Impurity C(Calcium Salt)|C4X-11694|1422514-05-3 https://www.jk-sci.com/products/s57c4x-116952 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_b4ecd8cc-ad06-4399-b6be-3fd685ded01f.png?v=1774886703 Rosuvastatin EP Impurity M(Sodium Salt) Rosuvastatin EP Impurity M(Sodium Salt)|C4X-116952 https://www.jk-sci.com/products/s57c4x-116964 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/278514_c7ce58ea-2a38-46ee-96ad-9e57800b383f.png?v=1774901853 Rosuvastatin Impurity 64 | 124655-09-0 Rosuvastatin Impurity 64|C4X-116964|124655-09-0 https://www.jk-sci.com/products/s57c4x-11696 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/229160_d5a98162-2d97-42d8-88d3-241c15bdf821.png?v=1774882117 Rosuvastatin EP Impurity F | 289042-12-2 Rosuvastatin EP Impurity F|C4X-11696|289042-12-2 https://www.jk-sci.com/products/s57c4x-1173 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/298087_b4ce0ea1-d6a5-4c95-8170-76ee94921e7c.png?v=1774659820 Acarbose | 56180-94-0 Acarbose|C4X-1173|56180-94-0 https://www.jk-sci.com/products/s57c4x-116973 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/809e6b8d7a5f653360b55a55fd767c6e.jpg?v=1776408795 Rosuvastatin EP Impurity C | 1422619-13-3 Rosuvastatin EP Impurity C|C4X-116973|1422619-13-3 https://www.jk-sci.com/products/s57c4x-117311 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_97a961ff-cb5f-4eaf-86f1-cb586fb4aae4.png?v=1775075119 Acarbose Impurity 11 (Mixture of Diastereomers) Acarbose Impurity 11 (Mixture of Diastereomers)|C4X-117311 https://www.jk-sci.com/products/s57c4x-117513 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-1176133 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_4bc7b9df-22f8-484f-bb34-f1c105495824.png?v=1774962378 Salbutamol Impurity 133 Salbutamol Impurity 133|C4X-1176133 https://www.jk-sci.com/products/s57c4x-11761 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c46a7334bb1ee7924760e068eaf5d350.jpg?v=1776408810 Salbutamol EP Impurity J(HCl) | 41489-89-8 Salbutamol EP Impurity J(HCl)|C4X-11761|41489-89-8 https://www.jk-sci.com/products/s57c4x-1176119 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8e47c613772c269b5ab95ab619159bda.jpg?v=1776408815 (S)-Salbutamol | 34271-50-6 (S)-Salbutamol|C4X-1176119|34271-50-6 https://www.jk-sci.com/products/s57c4x-117526 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_bb3d2347-59cb-4e0f-857c-77d69e685b16.png?v=1775141773 Macitentan Impurity 26 Macitentan Impurity 26|C4X-117526 https://www.jk-sci.com/products/s57c4x-11753 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f56c2f7b734ecc28f75229a72fc6fcb4.jpg?v=1776408804 Macitentan Impurity 3 | 1103522-45-7 Macitentan Impurity 3|C4X-11753|1103522-45-7 https://www.jk-sci.com/products/s57c4x-117615 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/15f26a4b8088e3d61302fb4a77224f53.jpg?v=1776408821 Salbutamol Impurity M | 18910-70-8 Salbutamol Impurity M|C4X-117615|18910-70-8 https://www.jk-sci.com/products/s57c4x-1176159 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_aa40169f-4ca9-461a-a472-997c720dbb82.png?v=1774904420 【重复停用见C4X-1176182】Salbutamol Impurity 59HCI 【重复停用见C4X-1176182】Salbutamol Impurity 59HCI|C4X-1176159 https://www.jk-sci.com/products/s57c4x-1176160 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_b39a84b2-b7b4-48a0-b619-3b0adbfc968b.png?v=1774723824 Salbutamol Impurity M HCl Salbutamol Impurity M HCl|C4X-1176160 https://www.jk-sci.com/products/s57c4x-117621 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ba76348418951ee499aa3300fa330f14.jpg?v=1776408837 Salbutamol Impurity 21 | 2387728-91-6 Salbutamol Impurity 21|C4X-117621|2387728-91-6 https://www.jk-sci.com/products/s57c4x-1176167 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_07258679-76fc-4687-88b9-297b96d99958.png?v=1774672673 Salbutamol Glyoxal Impurities Salbutamol Glyoxal Impurities|C4X-1176167 https://www.jk-sci.com/products/s57c4x-117627 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/261e83e406bf0c1f3691439284428ca9.jpg?v=1776408843 Salbutamol Impurity 27 | 1823256-56-9 Salbutamol Impurity 27|C4X-117627|1823256-56-9 https://www.jk-sci.com/products/j5310092 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6ba395983a9fb9e6932b82be9b8a0bd5.jpg?v=1776328981 Tosyl-D-proline | 110771-95-4 Tosyl-D-proline|10092|110771-95-4 https://www.jk-sci.com/products/s57c4x-11763 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-117637 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_e0eb253f-a8ed-45fb-bea3-dc1f3e211136.png?v=1774733101 Salbutamol Sulfate EP Impurity L HCl Salbutamol Sulfate EP Impurity L HCl|C4X-117637 https://www.jk-sci.com/products/s57c4x-11769 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4babe0e3106d56d4ccad43ff1fca4267.jpg?v=1776408866 Salbutamol Impurity 9 | 754926-25-5 Salbutamol Impurity 9|C4X-11769|754926-25-5 https://www.jk-sci.com/products/j5310099 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ff49a2ab8218f381954852e75669bec5.jpg?v=1776328991 Tosyl-L-Phenylalanine chloromethylketone | 402-71-1 Tosyl-L-Phenylalanine chloromethylketone|10099|402-71-1 https://www.jk-sci.com/products/s57c4x-117687 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bd4fdd2aaa760866cd0660b3315ccb86.jpg?v=1776408860 Salbutamol Impurity 87 | 115787-53-6 Salbutamol Impurity 87|C4X-117687|115787-53-6 https://www.jk-sci.com/products/s57c4x-117653 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d11639e1a35fc40a4b3f8ff42914a704.jpg?v=1776408853 Salbutamol Impurity 53 | 54208-72-9 Salbutamol Impurity 53|C4X-117653|54208-72-9 https://www.jk-sci.com/products/s57c4x-117674 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_c87dd00e-0446-4dfb-a08d-0da9e1e19803.png?v=1774664645 Salbutamol EP Impurity D HCl Salbutamol EP Impurity D HCl|C4X-117674 https://www.jk-sci.com/products/j5310544 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b64f3e2aba04e30c712ce1471fe5fd72.jpg?v=1776329016 1-Boc-4-aminopiperidine-4-carboxylic acid | 183673-71-4 1-Boc-4-aminopiperidine-4-carboxylic acid|10544|183673-71-4 https://www.jk-sci.com/products/a01248368 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/248368.png?v=1784651317 2,4-Dimethylpyrrole-3-carboxylic acid ethyl ester, 98% | 2199-51-1 2,4-Dimethylpyrrole-3-carboxylic acid ethyl ester, 98%|248368|2199-51-1 https://www.jk-sci.com/products/s57c4x-11772 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/205037_f2a0eaf9-3d04-4878-8553-55f6f387d14c.png?v=1774974222 Hydrochlorothiazide EP Impurity B | 121-30-2 Hydrochlorothiazide EP Impurity B|C4X-11772|121-30-2 https://www.jk-sci.com/products/j5310559 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c4a663fa0fd238e5eb658e2164856d07.jpg?v=1776329034 1-O-Hexadecyl-2-O-methyl-sn-glycerol | 96960-92-8 1-O-Hexadecyl-2-O-methyl-sn-glycerol|10559|96960-92-8 https://www.jk-sci.com/products/j5310580 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/02001977657c6951d34730ba832f2576.jpg?v=1776329045 1-Palmitoyl-sn-glycero-3-phosphocholine | 17364-16-8 1-Palmitoyl-sn-glycero-3-phosphocholine|10580|17364-16-8 https://www.jk-sci.com/products/s57c4x-11773 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9543cd03283ba52092d71ac2264bfe3a.jpg?v=1776408876 Hydrochlorothiazide EP Impurity C | 402824-96-8 Hydrochlorothiazide EP Impurity C|C4X-11773|402824-96-8 https://www.jk-sci.com/products/s57c4x-117812 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/36bdbbc114cc9d34cce4e77022f5823e.jpg?v=1776408883 Olanzapine Impurity 12 | 873895-41-1 Olanzapine Impurity 12|C4X-117812|873895-41-1 https://www.jk-sci.com/products/s57c4x-117820 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8db1499fc5432f1ae93805173c3e42f3.jpg?v=1776408889 Olanzapine Impurity 20 | 1017241-34-7 Olanzapine Impurity 20|C4X-117820|1017241-34-7 https://www.jk-sci.com/products/s57c4x-11781 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-117840 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/245461_20d3a9fe-2ca6-49b8-b6ef-c3a7fc68ee9b.png?v=1775153114 Olanzapine Impurity 40 | 1493-27-2 Olanzapine Impurity 40|C4X-117840|1493-27-2 https://www.jk-sci.com/products/s57c4x-117849 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_325fa6e1-c1f3-4481-b4d6-61d150dcaf9f.png?v=1774712730 Olanzapine impurity 49 Olanzapine impurity 49|C4X-117849 https://www.jk-sci.com/products/j5310603 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4fc68a1fa92ce7cb1d9e8bbb6b01fe3d.jpg?v=1776329066 3-Methoxytyramine·HCl | 1477-68-5 3-Methoxytyramine·HCl|10603|1477-68-5 https://www.jk-sci.com/products/j5310652 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5c1c889dac052a3cc4ee5b3eac6a8bad.jpg?v=1776329111 2-Abz-Gly-OH·HCl | 256657-23-5 2-Abz-Gly-OH·HCl|10652|256657-23-5 https://www.jk-sci.com/products/j5310747 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cfd2768696f2164eba64c89d01f3d2fb.jpg?v=1776329121 Aspartame | 22839-47-0 Aspartame|10747|22839-47-0 https://www.jk-sci.com/products/s57c4x-11787 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/300447.png?v=1775153119 Olanzapine Impurity 7 | 138564-58-6 Olanzapine Impurity 7|C4X-11787|138564-58-6 https://www.jk-sci.com/products/s57c4x-118111 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/faa81ac632c51abcc5fcb57a80b01e04.jpg?v=1776408896 Carbamazepine Impurity 11 | 33948-20-8 Carbamazepine Impurity 11|C4X-118111|33948-20-8 https://www.jk-sci.com/products/s57c4x-118011 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/236200.png?v=1774962387 Benzyl Alcohol Impurity 11 | 1024-41-5 Benzyl Alcohol Impurity 11|C4X-118011|1024-41-5 https://www.jk-sci.com/products/s57c4x-11806 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/220520_a199fcec-c81b-4b7e-9625-23c0abf5f9c2.png?v=1774714776 Benzyl Alcohol EP Impurity B | 100-49-2 Benzyl Alcohol EP Impurity B|C4X-11806|100-49-2 https://www.jk-sci.com/products/j5310911 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/352e033a4c05a461850ab70ebee1de5a.jpg?v=1776329150 1,2-Dilauroyl-sn-glycero-3-phosphocholine (synthetic) | 18194-25-7 1,2-Dilauroyl-sn-glycero-3-phosphocholine (synthetic)|10911|18194-25-7 https://www.jk-sci.com/products/s57c4x-11812 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/37ad2e805094860ae9cb5132abdd696b_e7b04c3e-c5b8-414b-aa77-2647d92f990b.jpg?v=1776408905 10,11-Dihydro-10-Hydroxy Carbamazepine | 29331-92-8 10,11-Dihydro-10-Hydroxy Carbamazepine|C4X-11812|29331-92-8 https://www.jk-sci.com/products/a01249255 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/249255.png?v=1784651353 2-Mercaptothiazole, 98% | 82358-09-6 2-Mercaptothiazole, 98%|249255|82358-09-6 https://www.jk-sci.com/products/s57c4x-11816 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/eff9114ceebc4dbf7235f044187847cd.jpg?v=1776408908 Carbamazepine Impurity 6 | 40421-03-2 Carbamazepine Impurity 6|C4X-11816|40421-03-2 https://www.jk-sci.com/products/s57c4x-118353 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/285241.png?v=1774902910 Terbutaline Impurity 53 | 51863-60-6 Terbutaline Impurity 53|C4X-118353|51863-60-6 https://www.jk-sci.com/products/s57c4x-118320 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-118311 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_e1f991d7-7008-423e-9968-fb0e76ff87fa.png?v=1774664649 Terbutaline EP Impurity C (Hydrobromide) Terbutaline EP Impurity C (Hydrobromide)|C4X-118311 https://www.jk-sci.com/products/s57c4x-11831 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/445888.png?v=1775156137 Terbutaline EP Impurity A | 99-10-5 Terbutaline EP Impurity A|C4X-11831|99-10-5 https://www.jk-sci.com/products/s57c4x-118133 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-118368 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_69034c6a-5a82-4306-a8ff-d6da454f374b.png?v=1774711322 Terbutaline impurity 68 Terbutaline impurity 68|C4X-118368 https://www.jk-sci.com/products/s57c4x-118373 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_8923c844-f35a-472a-940d-8f5e3d07878c.png?v=1775052464 Terbutaline Impurity 29 HCl Terbutaline Impurity 29 HCl|C4X-118373 https://www.jk-sci.com/products/s57c4x-11841 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/322452.png?v=1774659828 Aspartame EP Impurity A | 5262-10-2 Aspartame EP Impurity A|C4X-11841|5262-10-2 https://www.jk-sci.com/products/s57c4x-118612 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/477687.png?v=1774672682 Repaglinide EP Impurity C | 147769-93-5 Repaglinide EP Impurity C|C4X-118612|147769-93-5 https://www.jk-sci.com/products/j5310913 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a7115572d210fbc9f1d345fa1f703fe6.jpg?v=1776329156 1,2-Dilauroyl-sn-glycerol | 60562-15-4 1,2-Dilauroyl-sn-glycerol|10913|60562-15-4 https://www.jk-sci.com/products/s57c4x-11857 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/138746.png?v=1774711328 Glutathione Impurity 7 | 3773-07-7 Glutathione Impurity 7|C4X-11857|3773-07-7 https://www.jk-sci.com/products/s57c4x-11851 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/312630.png?v=1774733115 Glutathione EP Impurity A | 19246-18-5 Glutathione EP Impurity A|C4X-11851|19246-18-5 https://www.jk-sci.com/products/s57c4x-118626 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/689b9631d171917485fc35f98717f254.jpg?v=1776408933 Repaglinide Impurity 26 | 791812-92-5 Repaglinide Impurity 26|C4X-118626|791812-92-5 https://www.jk-sci.com/products/s57c4x-11864 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b087d9a6b67ca547c8e337551ec6b82a.jpg?v=1776408938 Repaglinide EP Impurity D | 147770-06-7 Repaglinide EP Impurity D|C4X-11864|147770-06-7 https://www.jk-sci.com/products/j5310921 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b547053274bcdf72ccdf2353b0314f55.jpg?v=1776329171 1,2-Dipalmitoyl-rac-glycerol | 40290-32-2 1,2-Dipalmitoyl-rac-glycerol|10921|40290-32-2 https://www.jk-sci.com/products/s57c4x-11871 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b721fe0efb920d91645f44f582e5907f.jpg?v=1776408941 Tamsulosin EP Impurity A HCl | 918867-88-6 Tamsulosin EP Impurity A HCl|C4X-11871|918867-88-6 https://www.jk-sci.com/products/j5310917 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f4c4c17734c043368a5d4b77aa9f903d.jpg?v=1776329161 1,2-Dimyristoyl-sn-glycero-3-phosphocholine | 18194-24-6 1,2-Dimyristoyl-sn-glycero-3-phosphocholine|10917|18194-24-6 https://www.jk-sci.com/products/s57c4x-11875 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/56d7dba07431025df69bd8bd0a18354f.jpg?v=1776408954 Tamsulosin Ep Impurity E | 105764-07-6 Tamsulosin Ep Impurity E|C4X-11875|105764-07-6 https://www.jk-sci.com/products/a01249888 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/249888.png?v=1784651393 Choline bitartrate, 98% | 87-67-2 Choline bitartrate, 98%|249888|87-67-2 https://www.jk-sci.com/products/s57c4x-11873 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/373046d0ffa28a3fe992bd4c795b3c09.jpg?v=1776408947 Tamsulosin EP Impurity C | 2244986-82-9 Tamsulosin EP Impurity C|C4X-11873|2244986-82-9 https://www.jk-sci.com/products/s57c4x-11874 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5be7a50f5f9e40fc6b33999f1f56393f.jpg?v=1776408950 Tamsulosin EP Impurity D | 1799280-05-9 Tamsulosin EP Impurity D|C4X-11874|1799280-05-9 https://www.jk-sci.com/products/j5310923 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fd99f91ef182fc8071f420a7919fb9f8.jpg?v=1776329177 1,2-Dipalmitoyl-sn-glycero-3-phosphocholine | 63-89-8 1,2-Dipalmitoyl-sn-glycero-3-phosphocholine|10923|63-89-8 https://www.jk-sci.com/products/s57c4x-118755 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-11877 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/50730562889836a6d9a749ad0a91b5f7.jpg?v=1776408960 Tamsulosin EP Impurity G | 106138-88-9 Tamsulosin EP Impurity G|C4X-11877|106138-88-9 https://www.jk-sci.com/products/s57c4x-11881 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5310928 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0d4375a5986a8bad34d0787c7f0f71c8.jpg?v=1776329190 1,2-Distearoyl-rac-glycerol | 1188-58-5 1,2-Distearoyl-rac-glycerol|10928|1188-58-5 https://www.jk-sci.com/products/j5310934 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d2848dc2807130713edd084f7120d729.jpg?v=1776329203 1,2-O-Dihexadecyl-sn-glycerol | 67337-03-5 1,2-O-Dihexadecyl-sn-glycerol|10934|67337-03-5 https://www.jk-sci.com/products/s57c4x-118817 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6c98d2d64fceea55f40404fbf210efd4.jpg?v=1776408967 Chlorphenamine EP Impurity D | 65676-21-3 Chlorphenamine EP Impurity D|C4X-118817|65676-21-3 https://www.jk-sci.com/products/j5311047 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d216a5cc84070c5bd3693bf23d87d85e.jpg?v=1776329259 Cyclo(-Gly-L-Phe) | 10125-07-2 Cyclo(-Gly-L-Phe)|11047|10125-07-2 https://www.jk-sci.com/products/j5311176 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d24387b21e27eb019a40272c4b70ca20.jpg?v=1776329320 Na-Fmoc-N?,?-dimethyl-L-arginine (asymmetrical) hydrochloride | 268564-10-9 Na-Fmoc-N?,?-dimethyl-L-arginine (asymmetrical) hydrochloride|11176|268564-10-9 https://www.jk-sci.com/products/j5311019 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b53144f7ad7ddfc72fed2a509037da09.jpg?v=1776329222 Cyclo (L-Ala-L-ala) | 5845-61-4 Cyclo (L-Ala-L-ala)|11019|5845-61-4 https://www.jk-sci.com/products/s57c4x-118821 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3606891a6cb2de2ed07d787aeeafb41e.jpg?v=1776408970 Chlorphenamine Impurity 21 | 5005-37-8 Chlorphenamine Impurity 21|C4X-118821|5005-37-8 https://www.jk-sci.com/products/s57c4x-118825 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/570cebd567b9dc76a5f11366415412ed.jpg?v=1776408974 Chlorphenamine Impurity 25 | 122376-68-5 Chlorphenamine Impurity 25|C4X-118825|122376-68-5 https://www.jk-sci.com/products/a01250143 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/250143.png?v=1784651407 Tetraphenyl thiophene, 98% | 1884-68-0 Tetraphenyl thiophene, 98%|250143|1884-68-0 https://www.jk-sci.com/products/j5311182 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/439b5028e2cf0d4d1e8dbfa743fad21a.jpg?v=1776329338 Fmoc-D-aspartic acid | 136083-57-3 Fmoc-D-aspartic acid|11182|136083-57-3 https://www.jk-sci.com/products/s57c4x-118832 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cb5ff4621902a59413465fca12678bbf.jpg?v=1776408980 Chlorpheniramine Impurity 32 | 854863-55-1 Chlorpheniramine Impurity 32|C4X-118832|854863-55-1 https://www.jk-sci.com/products/j5311336 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fac8d48d147b62a3f0470c0fb1feb5e4.jpg?v=1776329383 Boc-D-His(3-Me)-OH | 200871-84-7 Boc-D-His(3-Me)-OH|11336|200871-84-7 https://www.jk-sci.com/products/j5311587 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a288ad6ec016ea5f7d9d733968f5a478.jpg?v=1776329458 Na-Allyloxycarbonyl-Ne-Boc-L-lysine dicyclohexyl ammonium salt | 110637-53-1 Na-Allyloxycarbonyl-Ne-Boc-L-lysine dicyclohexyl ammonium salt|11587|110637-53-1 https://www.jk-sci.com/products/j5311432 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4337f167fc5ee2ee1a5b5f53f95620ba.jpg?v=1776329403 Boc-(2R,3S)-3-phenylisoserine | 145514-62-1 Boc-(2R,3S)-3-phenylisoserine|11432|145514-62-1 https://www.jk-sci.com/products/j5311339 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7873b63aff82963bec96ff0b3d5b7c7b.jpg?v=1776329390 H-His(3-Me)-OH | 368-16-1 H-His(3-Me)-OH|11339|368-16-1 https://www.jk-sci.com/products/j5311593 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/90b7ae1406706a0498eb7a3035f026f6.jpg?v=1776329464 Boc-L-alanine aldehyde | 79069-50-4 Boc-L-alanine aldehyde|11593|79069-50-4 https://www.jk-sci.com/products/s57c4x-11884 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_e1418aad-57ff-469e-aef3-c47f25af9c81.png?v=1775153127 Chlorphenamine EP Impurity D Maleate Chlorphenamine EP Impurity D Maleate|C4X-11884 https://www.jk-sci.com/products/s57c4x-11887 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/22f8be098ca3aa1d1f1d25c6497afa69.jpg?v=1776408983 Chlorphenamine Impurity 7 | 78180-89-9 Chlorphenamine Impurity 7|C4X-11887|78180-89-9 https://www.jk-sci.com/products/s57c4x-119011 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/368246.png?v=1775154913 Captopril EP Impurity C | 26473-47-2 Captopril EP Impurity C|C4X-119011|26473-47-2 https://www.jk-sci.com/products/j5311606 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bc8edb8edafcf75c0f9693c5cedae1dd.jpg?v=1776329482 Na-Boc-Ne-4-nitro-Z-L-lysine | 22601-53-2 Na-Boc-Ne-4-nitro-Z-L-lysine|11606|22601-53-2 https://www.jk-sci.com/products/s57c4x-119019 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/138129.png?v=1775135250 Captopril EP Impurity A (Captopril disulfide) | 64806-05-9 Captopril EP Impurity A (Captopril disulfide)|C4X-119019|64806-05-9 https://www.jk-sci.com/products/a01250433 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/250433.png?v=1784651421 β-D-Glucose pentaacetate, 98% | 604-69-3 β-D-Glucose pentaacetate, 98%|250433|604-69-3 https://www.jk-sci.com/products/a01250607 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/460951.png?v=1784651436 2-Bromo-5-nitrothiazole, 98% | 3034-48-8 2-Bromo-5-nitrothiazole, 98%|250607|3034-48-8 https://www.jk-sci.com/products/s57c4x-11906 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/254461.png?v=1774722907 Captopril EP Impurity J | 64838-55-7 Captopril EP Impurity J|C4X-11906|64838-55-7 https://www.jk-sci.com/products/s57c4x-119130 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/59c0adf8d1d60ccbad015f52a956a203.jpg?v=1776408999 Apatinib | 811803-05-1 Apatinib|C4X-119130|811803-05-1 https://www.jk-sci.com/products/s57c4x-119310 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a78e81776fd7d82cb9f0b2dec9838678.jpg?v=1776409005 Cefepime Impurity 10 | 88040-25-9 Cefepime Impurity 10|C4X-119310|88040-25-9 https://www.jk-sci.com/products/j5305527 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5abc2510ad37495698d165a05aa86ad3.jpg?v=1776324974 Boc-DL-valine | 54895-12-4 Boc-DL-valine|05527|54895-12-4 https://www.jk-sci.com/products/s57c4x-1193 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/228088.png?v=1774987887 Cefepime dihydrochloridum monohydricum | 123171-59-5 Cefepime dihydrochloridum monohydricum|C4X-1193|123171-59-5 https://www.jk-sci.com/products/s57c4x-11932 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_130dc965-e3b8-47f4-b1f0-6bedc1e2e599.png?v=1775052474 Cefepime EP Impurity B Cefepime EP Impurity B|C4X-11932 https://www.jk-sci.com/products/s57c4x-11933 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5a97d6590351e60e3c3f879387d8d02f.jpg?v=1776409011 Cefepime EP Impurity C | 104301-63-5 Cefepime EP Impurity C|C4X-11933|104301-63-5 https://www.jk-sci.com/products/j5306437 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cbbfb7701b0fd907956b17db132df30a.jpg?v=1776326666 Na-Z-D-lysine benzyl ester benzenesulfonate salt | 201018-13-5 Na-Z-D-lysine benzyl ester benzenesulfonate salt|06437|201018-13-5 https://www.jk-sci.com/products/j5307031 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/111ba284bfed6b12be0fbfe06ae44b74.jpg?v=1776327319 4-tert-Butyloxycarbonyl-L-phenylalanine | 218962-77-7 4-tert-Butyloxycarbonyl-L-phenylalanine|07031|218962-77-7 https://www.jk-sci.com/products/j5307210 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fb1aa551b1f1bc260857b68b83c05248.jpg?v=1776327678 Sodium sulfide hydrated | 27610-45-3 Sodium sulfide hydrated|07210|27610-45-3 https://www.jk-sci.com/products/j5307320 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1f052026fefcc1813d8454b697a679f9.jpg?v=1776327897 Fmoc-(R,S)-3-amino-3-(1-naphthyl)propionic acid | 269078-77-5 Fmoc-(R,S)-3-amino-3-(1-naphthyl)propionic acid|07320|269078-77-5 https://www.jk-sci.com/products/s57c4x-11934 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/352659_7b2f426e-1cd7-41da-9528-7ba7a752d00e.png?v=1774664657 Cefepime EP Impurity D | 65872-41-5 Cefepime EP Impurity D|C4X-11934|65872-41-5 https://www.jk-sci.com/products/s57c4x-111126 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/494fa576bc7cc55beb1cefbc9c1f847b.jpg?v=1776407389 (Z)Risperidone Impurity 26 | 135634-18-3 (Z)Risperidone Impurity 26|C4X-111126|135634-18-3 https://www.jk-sci.com/products/s57c4x-11937 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d1ee3110b9d9512d434107ca31a0f74c.jpg?v=1776409013 Cefepime EP Impurity A | 97164-57-3 Cefepime EP Impurity A|C4X-11937|97164-57-3 https://www.jk-sci.com/products/a019456095 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_37826980-4251-406a-8b7c-8904a7224a11.png?v=1776307797 Glycogen PAS staining solution Glycogen PAS staining solution|9456095 https://www.jk-sci.com/products/j5307389 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/41e2876b37c6925b9c370ee2c4dff9d2.jpg?v=1776328107 p-Trifluoromethyl-D-phenylalanine | 114872-99-0 p-Trifluoromethyl-D-phenylalanine|07389|114872-99-0 https://www.jk-sci.com/products/s57c4x-113040 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c8526974db8c189a70aab2e5889d8548.jpg?v=1776407808 Ilaprazole Impurity 40 | 102625-96-7 Ilaprazole Impurity 40|C4X-113040|102625-96-7 https://www.jk-sci.com/products/s57c4x-113242 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ca96666cb5e453a09a40c82e94995860.jpg?v=1776407960 Atorvastatin Lactam calcium Salt Impurity | 1046118-41-5 Atorvastatin Lactam calcium Salt Impurity|C4X-113242|1046118-41-5 https://www.jk-sci.com/products/s57c4x-113590 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_2ea66c6b-6ddb-4c45-b63f-b6448ddac23f.png?v=1774721986 Olaparib Impurity 90 Olaparib Impurity 90|C4X-113590 https://www.jk-sci.com/products/s57c4x-113456 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_2b60e04d-8be9-4baa-a523-be16b5c28a33.png?v=1774646272 Neratinib Impurity 56 Neratinib Impurity 56|C4X-113456 https://www.jk-sci.com/products/s57c4x-113830 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fad01b03b6a24129b014877a77c33785.jpg?v=1776408139 Dapagliflozin Propanediol Hydrate | 960404-48-2 Dapagliflozin Propanediol Hydrate|C4X-113830|960404-48-2 https://www.jk-sci.com/products/j5307444 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dfe8a50b2984045350e10c373794375e.jpg?v=1776328282 3-Styryl-L-alanine | 267650-37-3 3-Styryl-L-alanine|07444|267650-37-3 https://www.jk-sci.com/products/s57c4x-1140 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4a0ae6fab2a99efbffccb1611098221a.jpg?v=1776408207 Lenvatinib Mesylate | 857890-39-2 Lenvatinib Mesylate|C4X-1140|857890-39-2 https://www.jk-sci.com/products/j5307811 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/649e3f02f002bcf21cb86ff4897c08f9.jpg?v=1776328342 Boc-Ala-Gly-Gly-OH | 115035-47-7 Boc-Ala-Gly-Gly-OH|07811|115035-47-7 https://www.jk-sci.com/products/s57c4x-114130 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3fe79ac32eee81e474f114fd677b1dc1.jpg?v=1776408259 Aprepitant EP Impurity B | 2348441-62-1 Aprepitant EP Impurity B|C4X-114130|2348441-62-1 https://www.jk-sci.com/products/j5308082 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5f88a3dc28ca3eb2e4dc5c92127c43cb.jpg?v=1776328445 Fmoc-Phe-Pro-OH | 138372-76-6 Fmoc-Phe-Pro-OH|08082|138372-76-6 https://www.jk-sci.com/products/j5308456 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7df2afbd7f7f2eeb173696243b8bb8b1.jpg?v=1776328536 DL-Leucine methyl ester hydrochloride | 6322-53-8 DL-Leucine methyl ester hydrochloride|08456|6322-53-8 https://www.jk-sci.com/products/j5308471 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0b971ae3d2781766b2ece37612f1a6e9.jpg?v=1776328580 Ne-Allyloxycarbonyl-D-lysine | 274260-42-3 Ne-Allyloxycarbonyl-D-lysine|08471|274260-42-3 https://www.jk-sci.com/products/s57c4x-1144153 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/839da55a6b0023b19713cacaea6a1e3d.jpg?v=1776408292 Sitagliptin Impurity 153 | 910409-20-0 Sitagliptin Impurity 153|C4X-1144153|910409-20-0 https://www.jk-sci.com/products/s57c4x-114465 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c0caf6ea174dc29ac7143eaa6c5081b2.jpg?v=1776408331 Sitagliptin Impurity 65 | 1620129-74-9 Sitagliptin Impurity 65|C4X-114465|1620129-74-9 https://www.jk-sci.com/products/j5308698 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8e94d116a1c62ddb44bfb6ef73b13ce3.jpg?v=1776328676 Gly-Thr-OH | 7093-70-1 Gly-Thr-OH|08698|7093-70-1 https://www.jk-sci.com/products/s57c4x-11465 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/445177_52defb8d-ac82-4d68-a1b4-635b8a9dddc4.png?v=1774965383 Potassium Clavulanate EP Impurity M | 3033-62-3 Potassium Clavulanate EP Impurity M|C4X-11465|3033-62-3 https://www.jk-sci.com/products/s57c4x-114855 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_f6498ef9-e517-4ac2-bd71-e13367f73d03.png?v=1774734319 Amoxicillin Impurity 55 Amoxicillin Impurity 55|C4X-114855 https://www.jk-sci.com/products/s57c4x-115234 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/583648_424ffe97-ef26-4151-b615-b0122cb98d75.png?v=1774734324 Adefovir Impurity 34 | 1538-75-6 Adefovir Impurity 34|C4X-115234|1538-75-6 https://www.jk-sci.com/products/j5309069 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b1f4514d9456d3a9b8db32cbd998dc29.jpg?v=1776328764 H-Pro-Leu-Gly-NHOH·HCl | 120928-08-7 H-Pro-Leu-Gly-NHOH·HCl|09069|120928-08-7 https://www.jk-sci.com/products/s57c4x-11549 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1c7b7969763cb54110b86e5c9e732cd7.jpg?v=1776408469 Methotrexate EP Impurity I | 66147-29-3 Methotrexate EP Impurity I|C4X-11549|66147-29-3 https://www.jk-sci.com/products/s57c4x-11573 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4a2f7487200f2b5c6f4b5f7013707632.jpg?v=1776408494 Dextromethorphan EP Impurity C | 57969-05-8 Dextromethorphan EP Impurity C|C4X-11573|57969-05-8 https://www.jk-sci.com/products/j5309616 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6ff5c324539da99ad57686c852c64e76.jpg?v=1776328874 N-Methyl-L-threonine hydrochloride | 2812-28-4 N-Methyl-L-threonine hydrochloride|09616|2812-28-4 https://www.jk-sci.com/products/s57c4x-1161 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/407855_cec18ce8-156c-4131-ae55-aead0d4d6462.png?v=1774965400 Mitiglinide calcium hydrate | 207844-01-7 Mitiglinide calcium hydrate|C4X-1161|207844-01-7 https://www.jk-sci.com/products/s57c4x-116225 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-116256 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_50fb577f-2693-49cc-9292-1e3e547983c4.png?v=1774882108 Febuxostat Impurity 56 Febuxostat Impurity 56|C4X-116256 https://www.jk-sci.com/products/j5310005 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7eced125a80aca9da5e8898a4faa61c6.jpg?v=1776328957 Suc-Ala-Ala-Pro-Ala-pNA | 72682-69-0 Suc-Ala-Ala-Pro-Ala-pNA|10005|72682-69-0 https://www.jk-sci.com/products/s57c4x-116271 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/984e5b4d17930e4e7e61a4748de17e60.jpg?v=1776408589 Febuxostat Impurity 71 | 923942-34-1 Febuxostat Impurity 71|C4X-116271|923942-34-1 https://www.jk-sci.com/products/s57c4x-11631 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8e1f12a485b7806f1a4241c27b39b946.jpg?v=1776408600 Ceftriaxone Sodium EP Impurity A | 92143-31-2 Ceftriaxone Sodium EP Impurity A|C4X-11631|92143-31-2 https://www.jk-sci.com/products/s57c4x-116339 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_be367e8f-7606-4bfd-858f-667f16937eb5.png?v=1774962368 Ceftriaxone Impurity 39 Ceftriaxone Impurity 39|C4X-116339 https://www.jk-sci.com/products/s57c4x-11648 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-116411 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/352958_db133858-fbc4-4264-88b4-4175be0d9fa0.png?v=1774640718 Oxcarbazepine Impurity 11 | 494-19-9 Oxcarbazepine Impurity 11|C4X-116411|494-19-9 https://www.jk-sci.com/products/s57c4x-116427 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a8006ab292ef443e8bad6a3172766d5d.jpg?v=1776408625 Oxcarbazepine Impurity 27 | 4014-77-1 Oxcarbazepine Impurity 27|C4X-116427|4014-77-1 https://www.jk-sci.com/products/s57c4x-116526 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5310543 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4fa7038f3d86e51241f2d820a9918c80.jpg?v=1776329013 1-Amino-4-chloro-2-butyne·HCl | 77369-59-6 1-Amino-4-chloro-2-butyne·HCl|10543|77369-59-6 https://www.jk-sci.com/products/a019456123 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_9a6ea94f-860f-4fb9-9e40-e8bc5a86dee4.png?v=1776307873 Tris-acetic acid electrophoresis buffer (50×TAE) Tris-acetic acid electrophoresis buffer (50×TAE)|9456123 https://www.jk-sci.com/products/s57c4x-116534 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/628022_4135c41f-8cd7-48b0-a5d6-c38280733edc.png?v=1774904412 Dexamethasone 17-Formyloxy-17-Acid | 473273-04-0 Dexamethasone 17-Formyloxy-17-Acid|C4X-116534|473273-04-0 https://www.jk-sci.com/products/s57c4x-11663 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f548e79171e04f5eef04bcecb2834b4c.jpg?v=1776408697 Sodium Valproate EP Impurity C | 62391-99-5 Sodium Valproate EP Impurity C|C4X-11663|62391-99-5 https://www.jk-sci.com/products/j5310579 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dffb169361226e5aa7a5dac5f8188f48.jpg?v=1776329041 1-Palmitoyl-rac-glycerol | 542-44-9 1-Palmitoyl-rac-glycerol|10579|542-44-9 https://www.jk-sci.com/products/s57c4x-11656 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/421072_f50d5079-80ea-4b1e-be7c-37990efa922b.png?v=1774969404 Dexamethasone EP Impurity F | 382-67-2 Dexamethasone EP Impurity F|C4X-11656|382-67-2 https://www.jk-sci.com/products/s57c4x-116647 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/158694_375fd9cc-03eb-4f90-a2f9-b13afecc32ac.png?v=1774718891 Valproate Impurity 47 | 6065-63-0 Valproate Impurity 47|C4X-116647|6065-63-0 https://www.jk-sci.com/products/s57c4x-116610 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/28f3c7de81c1a17589cf4953ba384adb.jpg?v=1776408690 Sodium Valproate EP Impurity G | 52061-73-1 Sodium Valproate EP Impurity G|C4X-116610|52061-73-1 https://www.jk-sci.com/products/j5310858 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/200073.png?v=1776329134 L-Cystine bis-amide dihydrochloride | 22671-21-2 L-Cystine bis-amide dihydrochloride|10858|22671-21-2 https://www.jk-sci.com/products/s57c4x-116665 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_3471164a-ed6b-4d80-a16e-18d9fe7c760c.png?v=1774880341 Valproate Impurity 65 Valproate Impurity 65|C4X-116665 https://www.jk-sci.com/products/s57c4x-116711 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/33c4db492d5ed06cc168d3751d67623d.jpg?v=1776408727 Bedaquiline Impurity 11 | 5409-58-5 Bedaquiline Impurity 11|C4X-116711|5409-58-5 https://www.jk-sci.com/products/j5310621 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3e039c15cb9cf1eba8685cc0ad93bc9c.jpg?v=1776329092 4-(4-Azidophenyl)butyric acid | 103489-33-4 4-(4-Azidophenyl)butyric acid|10621|103489-33-4 https://www.jk-sci.com/products/s57c4x-11678 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/91e86f085f460c4b6979f6b848acb5e7.jpg?v=1776408740 Bedaquiline Impurity 8 | 2122862-01-3 Bedaquiline Impurity 8|C4X-11678|2122862-01-3 https://www.jk-sci.com/products/a019456130 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_ed2283a0-040a-4a20-b429-2a11457de0d7.png?v=1776307893 0.1%DEPC处理水 0.1%DEPC处理水|9456130 https://www.jk-sci.com/products/s57c4x-1169199 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/58a17f5c6def80fe9874d836ed6d28ba.jpg?v=1776408768 Rosuvastatin dehydroanaloge | 2290571-51-4 Rosuvastatin dehydroanaloge|C4X-1169199|2290571-51-4 https://www.jk-sci.com/products/s57c4x-117611 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e35c8356ed84531a752d5a4e0aa42401.jpg?v=1776408812 Salbutamol EP Impurity E | 24085-03-8 Salbutamol EP Impurity E|C4X-117611|24085-03-8 https://www.jk-sci.com/products/s57c4x-116910 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_ed65729f-eb8a-470c-b029-c8ae8b950a0f.png?v=1775154892 Rosuvastatin EP Impurity J (Sodium Salt) Rosuvastatin EP Impurity J (Sodium Salt)|C4X-116910 https://www.jk-sci.com/products/s57c4x-116983 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/138177_ea4061d2-c2df-4407-8aa0-cfdb71a479ee.png?v=1774892585 Rosuvastatin Impurity 83 | 147118-36-3 Rosuvastatin Impurity 83|C4X-116983|147118-36-3 https://www.jk-sci.com/products/s57c4x-116961 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/218876_fcb6ee71-63e3-4c62-a385-30aa32d8b336.png?v=1774712726 Rosuvastatin Impurity 61 | 124752-23-4 Rosuvastatin Impurity 61|C4X-116961|124752-23-4 https://www.jk-sci.com/products/j5311434 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a92d60c334059eebd55b04a3a8ba96fb.jpg?v=1776329409 3-(2R,3S)-Phenylisoserine | 136561-53-0 3-(2R,3S)-Phenylisoserine|11434|136561-53-0 https://www.jk-sci.com/products/j5310914 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d553a9249aa85f4341f88cb5ebd9e4e2.jpg?v=1776329159 1,2-Dimyristoyl-rac-glycero-3-phosphocholine | 18656-38-7 1,2-Dimyristoyl-rac-glycero-3-phosphocholine|10914|18656-38-7 https://www.jk-sci.com/products/s57c4x-11767 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/792364_11d870d9-432f-438a-8a88-fc100d33678b.png?v=1775154902 Salbutamol EP Impurity I | 56796-66-8 Salbutamol EP Impurity I|C4X-11767|56796-66-8 https://www.jk-sci.com/products/j5310932 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c2f01f7963f6a63491ac0665b6fb4d7b.jpg?v=1776329200 1,2-O-Dihexadecyl-rac-glycerol | 13071-60-8 1,2-O-Dihexadecyl-rac-glycerol|10932|13071-60-8 https://www.jk-sci.com/products/s57c4x-117623 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8eb3750115da6a8f99e11e8b39a3bfff.jpg?v=1776408840 Salbutamol EP impurity N | 149222-15-1 Salbutamol EP impurity N|C4X-117623|149222-15-1 https://www.jk-sci.com/products/s57c4x-116947 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_6f027af6-be97-4daf-a497-850ad1495497.png?v=1774659815 Rosuvastatin Impurity 47 Rosuvastatin Impurity 47|C4X-116947 https://www.jk-sci.com/products/j5310922 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/083388213850ae2fbbe90ad90a738e27.jpg?v=1776329174 1,2-Dipalmitoyl-sn-glycero-3-phosphatidic acid, sodium salt | 71065-87-7 1,2-Dipalmitoyl-sn-glycero-3-phosphatidic acid, sodium salt|10922|71065-87-7 https://www.jk-sci.com/products/s57c4x-1175 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f41396853b968179edb96850df3b335e.jpg?v=1776408798 Macitentan | 441798-33-0 Macitentan|C4X-1175|441798-33-0 https://www.jk-sci.com/products/j5311338 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3ec9942f35f069a4b9043845ecb67517.jpg?v=1776329387 H-His(1-Me)-OMe·HCl | 57519-09-2 H-His(1-Me)-OMe·HCl|11338|57519-09-2 https://www.jk-sci.com/products/j5311179 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3a858f2919429391265468ce7af8fad8.jpg?v=1776329328 Fmoc-S-sulfo-L-cysteine disodium | 163558-30-3 Fmoc-S-sulfo-L-cysteine disodium|11179|163558-30-3 https://www.jk-sci.com/products/j5311661 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7bd408e3e9e97c4925b6de7dc2fe0cc3.jpg?v=1776329545 D-2-Cyclohexylglycine trifluoroacetate | 14328-52-0 D-2-Cyclohexylglycine trifluoroacetate|11661|14328-52-0 https://www.jk-sci.com/products/s57c4x-117616 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/986d9e9a7c8d22120e069cffd3d8ca1b.jpg?v=1776408827 Salbutamol EP Impurity F | 147663-30-7 Salbutamol EP Impurity F|C4X-117616|147663-30-7 https://www.jk-sci.com/products/s57c4x-1176139 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_7ae8ed53-5aee-4d42-85e8-0fca00fa2fb2.png?v=1774727639 Salbutamol Impurity 139 HCl Salbutamol Impurity 139 HCl|C4X-1176139 https://www.jk-sci.com/products/s57c4x-117632 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/42714eae9222ace018ec3805e3477fc3.jpg?v=1776408850 Salbutamol EP Impurity A | 870076-72-5 Salbutamol EP Impurity A|C4X-117632|870076-72-5 https://www.jk-sci.com/products/j5311594 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/266fa94de606967d492a3fb9f843510b.jpg?v=1776329467 Boc-S-tert-butyl-L-cysteine dicyclohexylammonium salt | 60143-30-8 Boc-S-tert-butyl-L-cysteine dicyclohexylammonium salt|11594|60143-30-8 https://www.jk-sci.com/products/j5311044 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d82cd334bebdf8fd93d8725fc999adfd.jpg?v=1776329252 Cyclo(-Gly-L-Glu) | 16364-35-5 Cyclo(-Gly-L-Glu)|11044|16364-35-5 https://www.jk-sci.com/products/s57c4x-117527 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_be6bbac8-153f-4754-91f6-5ba31f3f85cf.png?v=1774901857 Macitentan Impurity 27 Macitentan Impurity 27|C4X-117527 https://www.jk-sci.com/products/j5311651 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/13c2921d08a2adbb82d6fd623a31f83b.jpg?v=1776329539 D-3,5-Dibromotyrosine | 50299-42-8 D-3,5-Dibromotyrosine|11651|50299-42-8 https://www.jk-sci.com/products/s57c4x-117688 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f1c0ee28fa4919750bc0bc93e7573bf1.jpg?v=1776408862 Salbutamol Impurity 88 | 156339-89-8 Salbutamol Impurity 88|C4X-117688|156339-89-8 https://www.jk-sci.com/products/s57c4x-117722 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d030c605f6d6018d8b0bd1ae50153db9.jpg?v=1776408872 Hydrochlorothiazide Impurity 22 | 63779-86-2 Hydrochlorothiazide Impurity 22|C4X-117722|63779-86-2 https://www.jk-sci.com/products/s57c4x-117811 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1024594_f8ec0a6a-be6d-41ef-a35e-e73d45112b48.png?v=1775076245 Olanzapine Impurity 11 | 1017241-36-9 Olanzapine Impurity 11|C4X-117811|1017241-36-9 https://www.jk-sci.com/products/j5311674 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e23c8029193abeb7a1875d22de035d80.jpg?v=1776329567 D-Tryptophan benzyl ester hydrochloride | 22839-16-3 D-Tryptophan benzyl ester hydrochloride|11674|22839-16-3 https://www.jk-sci.com/products/j5311669 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c775cfc763957aa957b0a241a08f7750.jpg?v=1776329554 Ne-Boc-D-lysine allyl ester hydrochloride | 218962-73-3 Ne-Boc-D-lysine allyl ester hydrochloride|11669|218962-73-3 https://www.jk-sci.com/products/s57c4x-117821 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/508646_2a5b0d3a-f616-4ac1-9842-37027054c348.png?v=1774901866 Olanzapine Impurity 21 | 60091-87-4 Olanzapine Impurity 21|C4X-117821|60091-87-4 https://www.jk-sci.com/products/a019456169 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_785b7411-02ef-4909-aac9-17148b755cf0.png?v=1776307966 Phosphate buffered saline powder (1×PBS, calcium and magnesium free) Phosphate buffered saline powder (1×PBS, calcium and magnesium free)|9456169 https://www.jk-sci.com/products/s57c4x-11785 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/560200_e6b16770-fb5d-4ef2-91f7-e63ad3eff152.png?v=1774733106 Olanzapine Impurity 5 | 138564-60-0 Olanzapine Impurity 5|C4X-11785|138564-60-0 https://www.jk-sci.com/products/s57c4x-118110 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/622191_5feb8345-90b5-4245-89a6-7165b40e2c56.png?v=1775136520 Eslicarbazepine | 104746-04-5 Eslicarbazepine|C4X-118110|104746-04-5 https://www.jk-sci.com/products/s57c4x-118131 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/a019456173 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_b4501184-753d-4334-8fc0-417f1df0b149.png?v=1776307979 Tris boric acid electrophoresis buffer (5×TBE) Tris boric acid electrophoresis buffer (5×TBE)|9456173 https://www.jk-sci.com/products/j5311699 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c009fca7c15e520caca4610f9220443d.jpg?v=1776329605 b-Cyclopropyl-D-Ala-OH | 121786-39-8 b-Cyclopropyl-D-Ala-OH|11699|121786-39-8 https://www.jk-sci.com/products/s57c4x-11819 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/169f98785f9663f9f6459a15efbaacc4.jpg?v=1776408911 Bedaquiline Impurity 9 | 791633-38-0 Bedaquiline Impurity 9|C4X-11819|791633-38-0 https://www.jk-sci.com/products/s57c4x-118375 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_f47e1627-18ab-4fa7-8240-3c49392f6acd.png?v=1774734334 Terbutaline Impurity 75 Terbutaline Impurity 75|C4X-118375 https://www.jk-sci.com/products/j5311678 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/edabacc0791435a6be06bcfb564054c6.jpg?v=1776329578 L-Glutamic acid g-methyl ester a-tert-butyl ester hydrochloride | 34582-33-7 L-Glutamic acid g-methyl ester a-tert-butyl ester hydrochloride|11678|34582-33-7 https://www.jk-sci.com/products/a019456172 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_c7dd4f72-b5ac-4a86-8d53-47842aa296f1.png?v=1776307977 Citric acid sodium citrate powder, 10 mmol/L, pH 6.0 Citric acid sodium citrate powder, 10 mmol/L, pH 6.0|9456172 https://www.jk-sci.com/products/j5311712 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/30c19fe0f5cf52ca6c12dc2e0811122c.jpg?v=1776329632 Z-1,3-diaminopropane·HCl | 17400-34-9 Z-1,3-diaminopropane·HCl|11712|17400-34-9 https://www.jk-sci.com/products/j5311728 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5aa0f2ce67143295e85ff9ed96c4bc24.jpg?v=1776329651 Z-Gly-Gly-Gly-Gly-OH | 7770-50-5 Z-Gly-Gly-Gly-Gly-OH|11728|7770-50-5 https://www.jk-sci.com/products/s57c4x-118334 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/05299bf90436fe6acdf58a238ab579ea.jpg?v=1776408919 Terbutaline Impurity 34 | 28924-18-7 Terbutaline Impurity 34|C4X-118334|28924-18-7 https://www.jk-sci.com/products/a019456174 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_8f8b9e94-77f2-412e-a7f5-6e27bda014e6.png?v=1776307982 Tris boric acid electrophoresis buffer (10×TBE) Tris boric acid electrophoresis buffer (10×TBE)|9456174 https://www.jk-sci.com/products/j5311774 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7b8b17d434f1c33df5a9164165991c6c.jpg?v=1776329693 Acetyl-DL-glutamic acid | 5817-08-3 Acetyl-DL-glutamic acid|11774|5817-08-3 https://www.jk-sci.com/products/s57c4x-11863 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fa6fd4fa27aef4ee2d4e7df0b5a74109_88bf2da0-df6f-4beb-8e03-f15476883364.jpg?v=1776408936 Repaglinide EP Impurity C N-acetyl-glutarate | 219921-94-5 Repaglinide EP Impurity C N-acetyl-glutarate|C4X-11863|219921-94-5 https://www.jk-sci.com/products/s57c4x-11861 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e9f372ea920b3ecd5b3838065dd130e8.jpg?v=1776408925 Repaglinide EP Impurity A | 220438-80-2 Repaglinide EP Impurity A|C4X-11861|220438-80-2 https://www.jk-sci.com/products/j5311790 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7b2ecab948f4d7e4a0c66d7e0c75c56c.jpg?v=1776329720 Acetyl-dehydro-alanine | 5429-56-1 Acetyl-dehydro-alanine|11790|5429-56-1 https://www.jk-sci.com/products/j5311832 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e071f1aeb8595f5375e7393c91108a94.jpg?v=1776329792 Boc-D-alanine-4-nitrophenyl ester | 85546-27-6 Boc-D-alanine-4-nitrophenyl ester|11832|85546-27-6 https://www.jk-sci.com/products/s57c4x-11872 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b3d3082d51b81a2aaefacee145ba002a.jpg?v=1776408945 Tamsulosin EP Impurity B | 112101-81-2 Tamsulosin EP Impurity B|C4X-11872|112101-81-2 https://www.jk-sci.com/products/s57c4x-118742 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/315068_fe4a048c-3b84-4619-b57d-45a2e415932e.png?v=1774638936 Tamsulosin Impurity 42 | 94-71-3 Tamsulosin Impurity 42|C4X-118742|94-71-3 https://www.jk-sci.com/products/s57c4x-11876 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/223659_358b6baa-1d86-4f98-a827-9d3786ff4b55.png?v=1775070232 Tamsulosin EP Impurity F | 6781-17-5 Tamsulosin EP Impurity F|C4X-11876|6781-17-5 https://www.jk-sci.com/products/j5311839 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2a8467dfb19ce0a84cc22336b2f97f3a.jpg?v=1776329805 Boc-D-norvaline N-hydroxysuccinimide ester | 213178-93-9 Boc-D-norvaline N-hydroxysuccinimide ester|11839|213178-93-9 https://www.jk-sci.com/products/s57c4x-118834 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_065b0953-a6bd-4c3e-bcc7-831848d76273.png?v=1774962390 N-Nitrosodemethyl Chlorphenamine N-Nitrosodemethyl Chlorphenamine|C4X-118834 https://www.jk-sci.com/products/s57c4x-118816 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/93bd8809062b69621d71449ecd634777.jpg?v=1776408963 Chlorpheniramine Impurity 16 | 73775-50-5 Chlorpheniramine Impurity 16|C4X-118816|73775-50-5 https://www.jk-sci.com/products/s57c4x-118822 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/546847_778f5ef7-c5c1-423b-b1d2-bc7d29066ca2.png?v=1775062799 Chlorphenamine Impurity 22 | 4584-46-7 Chlorphenamine Impurity 22|C4X-118822|4584-46-7 https://www.jk-sci.com/products/s57c4x-11889 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4bb29f8ae7c2613abc23f281dfb9e71c.jpg?v=1776408986 Chlorphenamine EP Impurity C | 20619-12-9 Chlorphenamine EP Impurity C|C4X-11889|20619-12-9 https://www.jk-sci.com/products/s57c4x-119038 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/491391_7dea4169-079e-46db-b949-b685dd8fd0b7.png?v=1774644496 Captopril Impurity 38 | 344-25-2 Captopril Impurity 38|C4X-119038|344-25-2 https://www.jk-sci.com/products/a019456177 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_30cefd69-1f44-4072-8ffb-dfcec29c08c4.png?v=1776307991 Phenylmethylsulfonyl fluoride solution, PMSF,100 mmol/L Phenylmethylsulfonyl fluoride solution, PMSF,100 mmol/L|9456177 https://www.jk-sci.com/products/s57c4x-119131 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a57d360f4a36e7d198901ab566b0b992.jpg?v=1776409002 Apatinib-d8 Hydrochloride | 2468771-44-8 Apatinib-d8 Hydrochloride|C4X-119131|2468771-44-8 https://www.jk-sci.com/products/j5311872 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f244e95dd49aa90639684e0fbfa92d64.jpg?v=1776329843 Na-Boc-Ne-isopropyl-L-lysine | 66880-55-5 Na-Boc-Ne-isopropyl-L-lysine|11872|66880-55-5 https://www.jk-sci.com/products/j5311842 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4c417889211d919ccb257019329ac3b3.jpg?v=1776329815 Boc-Nin-formyl-D-1,2,3,4-tetrahydronorharmane-3-carboxylic acid | 327603-49-6 Boc-Nin-formyl-D-1,2,3,4-tetrahydronorharmane-3-carboxylic acid|11842|327603-49-6 https://www.jk-sci.com/products/j5311918 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8b44cb6aac92afc1da7240d25def5d3c.jpg?v=1776329915 Benzyl-L-valine methyl ester hydrochloride | 177721-72-1 Benzyl-L-valine methyl ester hydrochloride|11918|177721-72-1 https://www.jk-sci.com/products/j5311908 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6302851f426e52cfe3f2f0d9da89e9d6.jpg?v=1776329891 Na-Benzyl-D-alanine methyl ester hydrochloride | 95071-12-8 Na-Benzyl-D-alanine methyl ester hydrochloride|11908|95071-12-8 https://www.jk-sci.com/products/j5311956 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/028b72a77440ef41cb2d19607963494e.jpg?v=1776329944 Fmoc-S-acetamidomethyl-L-cysteine N-hydroxysuccinimide ester | 182410-75-9 Fmoc-S-acetamidomethyl-L-cysteine N-hydroxysuccinimide ester|11956|182410-75-9 https://www.jk-sci.com/products/j5311891 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/47fb113d6a3798ac9ba20df55181c7a7.jpg?v=1776329865 Na-Boc-L-tryptophan amide | 62549-92-2 Na-Boc-L-tryptophan amide|11891|62549-92-2 https://www.jk-sci.com/products/j5311935 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f57a2f059b784fc4451fea2d9760061a.jpg?v=1776329932 Chloroacetyl-L-norleucine | 56787-36-1 Chloroacetyl-L-norleucine|11935|56787-36-1 https://www.jk-sci.com/products/s57c4x-119322 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/421463_8022c1ae-3020-4a68-8121-5bc75ed3d77b.png?v=1775071509 Cefepime | 88040-23-7 Cefepime|C4X-119322|88040-23-7 https://www.jk-sci.com/products/j5311960 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9b0d33b3baac252f93efa0f56598d932.jpg?v=1776329952 Na-Fmoc-Ng-xanthyl-D-asparagine | 353236-19-8 Na-Fmoc-Ng-xanthyl-D-asparagine|11960|353236-19-8 https://www.jk-sci.com/products/s57c4x-11936 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_ed9a7bdc-2a1e-4eb4-af8a-abd66bc94e1a.png?v=1774724882 Cefepime EP Impurity F Cefepime EP Impurity F|C4X-11936 https://www.jk-sci.com/products/a01945898 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/517355_a0c56f0c-4dbd-4a1e-8b1e-6dcfcf50e589.png?v=1776308049 4-Fluoro-1,3-dioxolan-2-one, 98% | 114435-02-8 4-Fluoro-1,3-dioxolan-2-one, 98%|945898|114435-02-8 https://www.jk-sci.com/products/s57c4x-11944 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8ba5ef9fd5b4c2a92bb5eef2bbc50e67.jpg?v=1776409016 Lamivudine EP Impurity A(2R,5S)Monomer | 173829-09-9 Lamivudine EP Impurity A(2R,5S)Monomer|C4X-11944|173829-09-9 https://www.jk-sci.com/products/s57c4x-11949 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/460388_102db00f-0ff1-4155-ac21-ab35b1bf34af.png?v=1774733122 Lamivudine EP Impurity F | 66-22-8 Lamivudine EP Impurity F|C4X-11949|66-22-8 https://www.jk-sci.com/products/j5312006 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0193cdd15fd407fcaebc3ae2c70ae839.jpg?v=1776329987 S-4-Methoxyltrityl-L-cysteine | 177582-20-6 S-4-Methoxyltrityl-L-cysteine|12006|177582-20-6 https://www.jk-sci.com/products/j5312049 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d406cc7cf6d0ce4e0542219e33555c76.jpg?v=1776330016 Gly-b-Ala-NH2·HCl | 15855-91-1 Gly-b-Ala-NH2·HCl|12049|15855-91-1 https://www.jk-sci.com/products/j5312031 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/437d407a3c435c82a7acfaf9184a930d.jpg?v=1776330006 Nin-Formyl-D-tryptophan hydrochloride | 367453-01-8 Nin-Formyl-D-tryptophan hydrochloride|12031|367453-01-8 https://www.jk-sci.com/products/s57c4x-119513 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/283382_69850e25-90b5-4270-91ca-65b39002fe24.png?v=1774726796 D-Alfa-Tocopherol Acetate | 58-95-7 D-Alfa-Tocopherol Acetate|C4X-119513|58-95-7 https://www.jk-sci.com/products/j5312097 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/03f1e704a7f4d637ec5952b691c694ea.jpg?v=1776330051 Phe-Phe-OMe·HCl | 38017-65-1 Phe-Phe-OMe·HCl|12097|38017-65-1 https://www.jk-sci.com/products/s57c4x-119520 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-11971 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/739fb28888569e124ad67e0b36ce4adf.jpg?v=1776409025 Sodium Fusidate EP Impurity A | 80445-74-5 Sodium Fusidate EP Impurity A|C4X-11971|80445-74-5 https://www.jk-sci.com/products/s57c4x-119719 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/04896f45acf7e164b1c7fd7150495550.jpg?v=1776409045 Sodium Fusidate EP Impurity O Sodium Salt | 55601-53-1 Sodium Fusidate EP Impurity O Sodium Salt|C4X-119719|55601-53-1 https://www.jk-sci.com/products/s57c4x-119711 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9e6558f120f578a20c925c00e327dfad.jpg?v=1776409031 Sodium Fusidate EP Impurity K | 4701-54-6 Sodium Fusidate EP Impurity K|C4X-119711|4701-54-6 https://www.jk-sci.com/products/s57c4x-11973 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_6f009ce3-8dac-4521-974f-c06c2e504245.png?v=1774664661 Sodium Fusidate EP Impurity C Sodium Fusidate EP Impurity C|C4X-11973 https://www.jk-sci.com/products/s57c4x-11975 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_f633ea2f-3944-4769-85cc-975559efe2a5.png?v=1774969413 Sodium Fusidate EP Impurity E Sodium Fusidate EP Impurity E|C4X-11975 https://www.jk-sci.com/products/s57c4x-119713 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/51ca4a705849f1c8b72ed3d1da96a76a.jpg?v=1776409037 Sodium Fusidate EP Impurity M | 1013937-16-0 Sodium Fusidate EP Impurity M|C4X-119713|1013937-16-0 https://www.jk-sci.com/products/j5312117 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cb4b2611a412dccd726977e021f6bbc3.jpg?v=1776330073 L-3,5-Diiodotyrosine ethyl ester hydrochloride | 74051-47-1 L-3,5-Diiodotyrosine ethyl ester hydrochloride|12117|74051-47-1 https://www.jk-sci.com/products/s57c4x-11977 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a31eae53075ec3c1d8e53aefb8a89608.jpg?v=1776409051 Sodium Fusidate EP Impurity G | 4680-37-9 Sodium Fusidate EP Impurity G|C4X-11977|4680-37-9 https://www.jk-sci.com/products/s57c4x-1198 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e8ceaababff7b0e8f5d5c1dda731021e.jpg?v=1776409062 Eltrombopag Olamine | 496775-62-3 Eltrombopag Olamine|C4X-1198|496775-62-3 https://www.jk-sci.com/products/j5312123 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d7850e4570881c709381f2176f407ce6.jpg?v=1776330086 L-Tyrosine hydrazide | 7662-51-3 L-Tyrosine hydrazide|12123|7662-51-3 https://www.jk-sci.com/products/a01946066 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4d0ae5c00c78917693814bce30819dd7.jpg?v=1776308074 2-Chloro-6-methoxyisonicotinic acid, 97% | 6313-51-5 2-Chloro-6-methoxyisonicotinic acid, 97%|946066|6313-51-5 https://www.jk-sci.com/products/s57c4x-119810 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5312134 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/30a04c55f56c03ecb4113f7e32a2f329.jpg?v=1776330095 5-Hydroxy-L-tryptophan ethyl ester hydrochloride | 57432-62-9 5-Hydroxy-L-tryptophan ethyl ester hydrochloride|12134|57432-62-9 https://www.jk-sci.com/products/j5307095 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/390f43a7efd1def2380f14a07407e818.jpg?v=1776327468 Z-b-cyclohexyl-D-alanine dicyclohexylammonium salt | 214852-64-9 Z-b-cyclohexyl-D-alanine dicyclohexylammonium salt|07095|214852-64-9 https://www.jk-sci.com/products/j5307363 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/743ed99ddc6532303975390acd450c8e.jpg?v=1776328037 1,3-Dihydro-5-phenyl-1,4-benzodiazepin-2-one | 2898-08-0 1,3-Dihydro-5-phenyl-1,4-benzodiazepin-2-one|07363|2898-08-0 https://www.jk-sci.com/products/j5306217 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ef3bbb1f7a9b4b0e747125dc45496132.jpg?v=1776326232 3-(3'-Pyridyl)-D-alanine | 70702-47-5 3-(3'-Pyridyl)-D-alanine|06217|70702-47-5 https://www.jk-sci.com/products/j5307564 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/75544603a44a7b8bfb428ac66be95ec1.jpg?v=1776328313 Z-N-Me-L-norleucine | 225386-32-3 Z-N-Me-L-norleucine|07564|225386-32-3 https://www.jk-sci.com/products/s57c4x-119811 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/422877971a7a283f6dbddd561df66b3d.jpg?v=1776409065 Eltrombopag | 496775-61-2 Eltrombopag|C4X-119811|496775-61-2 https://www.jk-sci.com/products/j5308309 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5c25a7e3f48c73fffb3bc05375fe79f2.jpg?v=1776328503 Ala-Pro-NH2·HCl | 76399-73-0 Ala-Pro-NH2·HCl|08309|76399-73-0 https://www.jk-sci.com/products/a01946227 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/364135.png?v=1776308093 6,7-Dimethoxy-4-methylcoumarin, 98% | 4281-40-7 6,7-Dimethoxy-4-methylcoumarin, 98%|946227|4281-40-7 https://www.jk-sci.com/products/j5308501 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5c0fe7ce08635e3e67b2885f76940368.jpg?v=1776328600 L-Glutamine 7-amido-4-methylcoumarin hydrobromide | 201851-47-0 L-Glutamine 7-amido-4-methylcoumarin hydrobromide|08501|201851-47-0 https://www.jk-sci.com/products/s57c4x-11982 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fc4ccd8a91b9b37375479f70420fc785.jpg?v=1776409071 Eltrombopag Methyl Ester | 1246929-01-0 Eltrombopag Methyl Ester|C4X-11982|1246929-01-0 https://www.jk-sci.com/products/j5309444 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/664d57047ab796dd393f144d2fac5ba1.jpg?v=1776328836 Lysinoalanine·2HCl (diastereomeric mixture: LL + LD) | 4418-81-9 Lysinoalanine·2HCl (diastereomeric mixture: LL + LD)|09444|4418-81-9 https://www.jk-sci.com/products/j5310097 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/01403e79db35c0d4b5316855d6f2f184.jpg?v=1776328988 Na-Tosyl-L-lysine chloromethylketone hydrochloride | 4272-74-6 Na-Tosyl-L-lysine chloromethylketone hydrochloride|10097|4272-74-6 https://www.jk-sci.com/products/s57c4x-119842 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0659f3de84e7899ada333fa8b797c2e3_c476a17e-d1ff-4998-85d2-63e5beec2e30.jpg?v=1776409074 Eltrombopag Impurity 42 | 612-87-3 Eltrombopag Impurity 42|C4X-119842|612-87-3 https://www.jk-sci.com/products/s57c4x-119863 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/407422_cfd9c8cf-eeb5-46f9-8b4d-4647e4e28777.png?v=1774646300 Eltrombopag Impurity 63 HCl | 60481-51-8 Eltrombopag Impurity 63 HCl|C4X-119863|60481-51-8 https://www.jk-sci.com/products/s57c4x-11987 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7f0bbeb940331d9bfa70fca5c885ded5.jpg?v=1776409077 Eltrombopag Impurity 7 | 1428987-69-2 Eltrombopag Impurity 7|C4X-11987|1428987-69-2 https://www.jk-sci.com/products/s57c4x-119873 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5310912 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c91336b91ed8af3982bba6dfb16985e9.jpg?v=1776329153 1,2-Dilauroyl-sn-glycero-3-phosphoethanolamine | 59752-57-7 1,2-Dilauroyl-sn-glycero-3-phosphoethanolamine|10912|59752-57-7 https://www.jk-sci.com/products/j5310594 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a7c8663816f1bbf5286df26865cb4f42.jpg?v=1776329063 3-(4'-Hydroxyphenyl)propionic acid-OSu | 34071-95-9 3-(4'-Hydroxyphenyl)propionic acid-OSu|10594|34071-95-9 https://www.jk-sci.com/products/s57c4x-11994 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a1ce3fdd38296255b6fec08186c64941_b6b7e098-7758-4d10-b86c-9a3e6eebe15a.jpg?v=1776409095 Simvastatin EP Impurity D | 476305-24-5 Simvastatin EP Impurity D|C4X-11994|476305-24-5 https://www.jk-sci.com/products/s57c4x-11989 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_d4e17538-26a5-4ec5-a122-610168134543.png?v=1774644500 Eltrombopag Impurity 9 Eltrombopag Impurity 9|C4X-11989 https://www.jk-sci.com/products/s57c4x-11992 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/632770.png?v=1775076260 Simvastatin EP Impurity B | 145576-25-6 Simvastatin EP Impurity B|C4X-11992|145576-25-6 https://www.jk-sci.com/products/j5310927 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ffd1c6c86decda01b7b80348a3f780d6.jpg?v=1776329187 1,2-Distearoyl-rac-glycero-3-phosphocholine | 816-93-3 1,2-Distearoyl-rac-glycero-3-phosphocholine|10927|816-93-3 https://www.jk-sci.com/products/s57c4x-119881 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_11e11807-df00-46c0-939e-e3c72f6a08c0.png?v=1774642293 Eltrombopag Impurity 81 Eltrombopag Impurity 81|C4X-119881 https://www.jk-sci.com/products/s57c4x-119927 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/410d1655e1cf4838a25e9cd4bc886f35.jpg?v=1776409089 Simvastatin Impurity 27 | 132487-01-5 Simvastatin Impurity 27|C4X-119927|132487-01-5 https://www.jk-sci.com/products/s57c4x-11996 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/920277_91ae1cdf-b30b-4d95-9e65-35cc1b576042.png?v=1775076265 Simvastatin EP Impurity F | 79952-44-6 Simvastatin EP Impurity F|C4X-11996|79952-44-6 https://www.jk-sci.com/products/s57c4x-12002 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bccb5f4c623047c8aa1a955861c88dc6.jpg?v=1776409104 1-Pentanone, 5-methoxy-1-[4-(trifluoromethyl) phenyl] -, oxime | 61747-22-6 1-Pentanone, 5-methoxy-1-[4-(trifluoromethyl) phenyl] -, oxime|C4X-12002|61747-22-6 https://www.jk-sci.com/products/s57c4x-120141 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bc6632533f93f9dc905a0fb9eb7410d3.jpg?v=1776409116 Cefotaxime open ring lactone | 75679-12-8 Cefotaxime open ring lactone|C4X-120141|75679-12-8 https://www.jk-sci.com/products/s57c4x-12012 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fc1d8f373c0e11cd4e0dfc0a1161c71e.jpg?v=1776409108 Cefotaxime EP Impurity B | 66340-28-1 Cefotaxime EP Impurity B|C4X-12012|66340-28-1 https://www.jk-sci.com/products/j5311137 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a77b89993748fbbc3678462018dc75b9.jpg?v=1776329317 Ethyleneglycolmonopentylether | 6196-58-3 Ethyleneglycolmonopentylether|11137|6196-58-3 https://www.jk-sci.com/products/s57c4x-12013 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5311409 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/61d5d5715dd92aaf106eac1a906dab1c.jpg?v=1776329400 L-Glutamic acid g-methyl ester a-amide hydrochloride | 70830-50-1 L-Glutamic acid g-methyl ester a-amide hydrochloride|11409|70830-50-1 https://www.jk-sci.com/products/j5311617 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/84e3e31c0b28e4b98ca4f5d7d8d61cd6.jpg?v=1776329495 Cyclo(-Phe-Pro) | 3705-26-8 Cyclo(-Phe-Pro)|11617|3705-26-8 https://www.jk-sci.com/products/j5311653 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5ac6eb8da90c17daddd3a7ca22996768.jpg?v=1776329542 L-a-Aminobutyric acid amide | 143164-46-9 L-a-Aminobutyric acid amide|11653|143164-46-9 https://www.jk-sci.com/products/s57c4x-12021 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-12025 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/442146.png?v=1774718915 Melitracen Impurity 5 | 111-18-2 Melitracen Impurity 5|C4X-12025|111-18-2 https://www.jk-sci.com/products/s57c4x-120212 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_68cb35dd-ee04-4895-ab87-9d9493d889c9.png?v=1774711332 Melitracen Impurity 12 Melitracen Impurity 12|C4X-120212 https://www.jk-sci.com/products/j5311670 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ab11a9eb210c6b92ead7bc3894f49254.jpg?v=1776329558 D-Phenylglycine amide hydrochloride | 63291-39-4 D-Phenylglycine amide hydrochloride|11670|63291-39-4 https://www.jk-sci.com/products/s57c4x-120320 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9e82f872ec81a0f557201562274d126c.jpg?v=1776409134 Bupropion Impurity 20 | 1346603-00-6 Bupropion Impurity 20|C4X-120320|1346603-00-6 https://www.jk-sci.com/products/s57c4x-120313 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c7d19b85ce64dd137dc49fef0459066d.jpg?v=1776409128 Bupropion Impurity 13 HCl | 2227990-16-9 Bupropion Impurity 13 HCl|C4X-120313|2227990-16-9 https://www.jk-sci.com/products/j5311690 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/81616a7efd7e8ac4ff1cd5dcfab16164.jpg?v=1776329594 L-Phenylglycine ethyl ester hydrochloride | 59410-82-1 L-Phenylglycine ethyl ester hydrochloride|11690|59410-82-1 https://www.jk-sci.com/products/s57c4x-120324 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b72edd1aa0782ca3cd5adcd69871d70e.jpg?v=1776409140 3-Deschloro-2-Chloro Bupropion HCl | 1049718-57-1 3-Deschloro-2-Chloro Bupropion HCl|C4X-120324|1049718-57-1 https://www.jk-sci.com/products/j5311714 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/191eeeddc02480edc44e94e94e11a74f.jpg?v=1776329638 N-Methyl-L-isoleucine methyl ester hydrochloride | 3339-43-3 N-Methyl-L-isoleucine methyl ester hydrochloride|11714|3339-43-3 https://www.jk-sci.com/products/j5311783 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d62fe7c3cf7338ac10ca49dc312202d7.jpg?v=1776329704 Acetyl-D-norleucine | 54896-21-8 Acetyl-D-norleucine|11783|54896-21-8 https://www.jk-sci.com/products/s57c4x-12033 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/76f36310fbeaa6c6dbb52c860d870d30.jpg?v=1776409152 Bupropion Impurity 3 | 152943-33-4 Bupropion Impurity 3|C4X-12033|152943-33-4 https://www.jk-sci.com/products/j5311835 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4c5218af8b1643e93ca0d61ab3de3bd6.jpg?v=1776329799 Boc-D-glutamic acid g-allyl ester | 259221-91-5 Boc-D-glutamic acid g-allyl ester|11835|259221-91-5 https://www.jk-sci.com/products/ts246cs-0107365 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/614068.png?v=1776474654 7-(Trifluoromethyl)-1,2,3,4-tetrahydroquinoline | 450-62-4 7-(Trifluoromethyl)-1,2,3,4-tetrahydroquinoline|CS-0107365|450-62-4 https://www.jk-sci.com/products/s57c4x-120353 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_4a333adb-d30d-48ec-a6f4-4da2d3e6481f.png?v=1774673692 Bupropion Impurity 53 HCl Bupropion Impurity 53 HCl|C4X-120353 https://www.jk-sci.com/products/j5311907 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fb542183fcb0fccfced090357d4eb2d8.jpg?v=1776329886 Na-Benzyl-L-asparagine mehtyl ester hydrochloride | 402929-49-1 Na-Benzyl-L-asparagine mehtyl ester hydrochloride|11907|402929-49-1 https://www.jk-sci.com/products/j5311864 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/60f5d97fd5ca19a931d4a3bb2ba4cb0c.jpg?v=1776329826 Boc-O-methyl-L-homoserine dicyclohexylammonium salt | 349545-91-1 Boc-O-methyl-L-homoserine dicyclohexylammonium salt|11864|349545-91-1 https://www.jk-sci.com/products/a01946307 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/07d9c39b026cecc4e70b1bf6d6516d83.jpg?v=1776308123 Ethyl 2,3,4,6-tetra-O-acetyl-1-thio-b-D-galactopyranoside, 95% | 55722-49-1 Ethyl 2,3,4,6-tetra-O-acetyl-1-thio-b-D-galactopyranoside, 95%|946307|55722-49-1 https://www.jk-sci.com/products/s57c4x-120441 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5311919 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/17f3c5eae973db9837bef1b3d02253dc.jpg?v=1776329918 Benzoyl-L-norleucine | 54430-46-5 Benzoyl-L-norleucine|11919|54430-46-5 https://www.jk-sci.com/products/s57c4x-12081 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4357b6802331de8bafd9e4be32117f6b.jpg?v=1776409172 Posaconazole Impurity 1 | 2243786-01-6 Posaconazole Impurity 1|C4X-12081|2243786-01-6 https://www.jk-sci.com/products/s57c4x-12055 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-1208119 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ad66d990e8affd620baf54747e5187c2.jpg?v=1776409178 Posaconazole Impurity 119 | 2243786-03-8 Posaconazole Impurity 119|C4X-1208119|2243786-03-8 https://www.jk-sci.com/products/s57c4x-120535 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c1b09bf6fcb43fd557c9ec17cde26594.jpg?v=1776409167 Tazobactam Impurity 35 | 125949-72-6 Tazobactam Impurity 35|C4X-120535|125949-72-6 https://www.jk-sci.com/products/s57c4x-1208122 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5311958 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/227975c6aa5908b6c9299ef92572d36d.jpg?v=1776329949 Fmoc-S-xanthyl-L-cysteine | 186829-25-4 Fmoc-S-xanthyl-L-cysteine|11958|186829-25-4 https://www.jk-sci.com/products/j5312030 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8f2a59a3ba750efd1cd8f644dfc6b682.jpg?v=1776330003 D-Threoninol | 44520-55-0 D-Threoninol|12030|44520-55-0 https://www.jk-sci.com/products/s57c4x-120815 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3520844ca21e18f8f666de296ba7cc68.jpg?v=1776409185 Posaconazole Impurity 15(S,S,S,S) | 1246391-73-0 Posaconazole Impurity 15(S,S,S,S)|C4X-120815|1246391-73-0 https://www.jk-sci.com/products/s57c4x-120816 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/33b4bd7191d8af78db4abec325130490.jpg?v=1776409189 Posaconazole Impurity 16(S,R,S,S) | 213381-02-3 Posaconazole Impurity 16(S,R,S,S)|C4X-120816|213381-02-3 https://www.jk-sci.com/products/j5312121 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/39e15440d8ee42712b23b036ca214886.jpg?v=1776330082 O-Phospho-L-tyrosine | 21820-51-9 O-Phospho-L-tyrosine|12121|21820-51-9 https://www.jk-sci.com/products/j5312079 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/439b1dbe1f265e768bfffb90893a4ea9.jpg?v=1776330036 L-Leucine 9-fluorenylmethyl ester hydrochloride | 197162-68-8 L-Leucine 9-fluorenylmethyl ester hydrochloride|12079|197162-68-8 https://www.jk-sci.com/products/s57c4x-1208170 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_17fc4def-9dc0-4414-aeae-41570d2d9cce.png?v=1775072638 Posaconazole Impurity 170 Posaconazole Impurity 170|C4X-1208170 https://www.jk-sci.com/products/s57c4x-1208175 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0fa5b58be5776822b92d33921a2d1a4b.jpg?v=1776409196 Posaconazole Impurity 175 | 169265-99-0 Posaconazole Impurity 175|C4X-1208175|169265-99-0 https://www.jk-sci.com/products/j5312163 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/12dfa9bb684eb574355ab76e41a1a444.jpg?v=1776330114 Pht-Gly-b-Ala-OH | 17896-84-3 Pht-Gly-b-Ala-OH|12163|17896-84-3 https://www.jk-sci.com/products/s57c4x-1208182 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_56639651-9063-448e-a976-8f6c493ad509.png?v=1774672690 Posaconazole Impurity 82 Posaconazole Impurity 82|C4X-1208182 https://www.jk-sci.com/products/j5312208 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/87aa9f93dda4af7c78bcdda134a85595.jpg?v=1776330142 Na-Z-Ng-xanthyl-L-asparagine | 327981-00-0 Na-Z-Ng-xanthyl-L-asparagine|12208|327981-00-0 https://www.jk-sci.com/products/s57c4x-1208196 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_96e87099-481a-431a-85bc-a6bbcd9b5b6b.png?v=1774902923 Posaconazole Impurity 196 Posaconazole Impurity 196|C4X-1208196 https://www.jk-sci.com/products/s57c4x-12082 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/325e329a7eca40e15615eba50fc2b69f.jpg?v=1776409199 Posaconazole Impurity 2 | 2243786-00-5 Posaconazole Impurity 2|C4X-12082|2243786-00-5 https://www.jk-sci.com/products/s57c4x-120821 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8562fe89cabc3bf6929b1b9a8ad53806.jpg?v=1776409202 Posaconazole Impurity 21(R,R,S,R) | 171228-50-5 Posaconazole Impurity 21(R,R,S,R)|C4X-120821|171228-50-5 https://www.jk-sci.com/products/a01946828 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/148309.png?v=1776308171 Benzyl phenyl sulfide, 98% | 831-91-4 Benzyl phenyl sulfide, 98%|946828|831-91-4 https://www.jk-sci.com/products/j5312219 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d25cd97fdad8dd44309b0dffea151a5f.jpg?v=1776330149 Z-L-aspartic acid-di-tert-butyl ester | 42417-76-5 Z-L-aspartic acid-di-tert-butyl ester|12219|42417-76-5 https://www.jk-sci.com/products/j5312234 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3383f8808e430566633c48362818449f.jpg?v=1776330162 Na-Z-DL-histidine | 19728-57-5 Na-Z-DL-histidine|12234|19728-57-5 https://www.jk-sci.com/products/s57c4x-120827 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_1f225805-0555-4142-9e11-25bd1c511354.png?v=1774733126 Posaconazole Impurity 27 Posaconazole Impurity 27|C4X-120827 https://www.jk-sci.com/products/j5312241 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2e7d075b88feb5ce1c83ed27f75efba2.jpg?v=1776330175 Z-4-chloro-DL-phenylalanine | 55478-54-1 Z-4-chloro-DL-phenylalanine|12241|55478-54-1 https://www.jk-sci.com/products/s57c4x-12084 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8929cb776b4eee9c8d8f0de68b214a94.jpg?v=1776409215 Posaconazole Impurity 4 | 184177-83-1 Posaconazole Impurity 4|C4X-12084|184177-83-1 https://www.jk-sci.com/products/s57c4x-120842 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/05199c45b5b793295b7e2da3086b07a4.jpg?v=1776409221 Posaconazole Impurity 42 | 357189-96-9 Posaconazole Impurity 42|C4X-120842|357189-96-9 https://www.jk-sci.com/products/s57c4x-120844 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2ca5d7883ba6b72e2e083d0f35a2a1f8.jpg?v=1776409224 Posaconazole Impurity 44 | 357189-97-0 Posaconazole Impurity 44|C4X-120844|357189-97-0 https://www.jk-sci.com/products/j5312255 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9b0050cdd8b10d1d6dbec838d72ccb45.jpg?v=1776330186 Z-L-glutamic acid g-cyclohexyl ester dicyclohexylammonium salt | 111479-43-7 Z-L-glutamic acid g-cyclohexyl ester dicyclohexylammonium salt|12255|111479-43-7 https://www.jk-sci.com/products/s57c4x-120848 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b8b1a92e2ba989be092edcfef560d77f.jpg?v=1776409230 Posaconazole Impurity 48 | 1902954-03-3 Posaconazole Impurity 48|C4X-120848|1902954-03-3 https://www.jk-sci.com/products/s57c4x-120851 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2261e156f75c5a2c9e8ac36dd2ecbb73.jpg?v=1776409232 Posaconazole Impurity 51 | 357189-94-7 Posaconazole Impurity 51|C4X-120851|357189-94-7 https://www.jk-sci.com/products/s57c4x-120854 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2f3dd2d8b5d7b675b4d0c98bb4f99cdd.jpg?v=1776409240 Posaconazole Impurity 54(R,S,S,S) | 2243785-96-6 Posaconazole Impurity 54(R,S,S,S)|C4X-120854|2243785-96-6 https://www.jk-sci.com/products/a01946846 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c6570b304b77a6f08668c4333706073c.jpg?v=1776308174 Triethylene Glycol 2-Bromoethyl Methyl Ether, 95% | 110429-45-3 Triethylene Glycol 2-Bromoethyl Methyl Ether, 95%|946846|110429-45-3 https://www.jk-sci.com/products/s57c4x-120858 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_3a371225-58b9-4016-be0d-c8ad65303e34.png?v=1775060546 Posaconazole Impurity 58 Posaconazole Impurity 58|C4X-120858 https://www.jk-sci.com/products/s57c4x-120874 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/265e0cc3f508bc13b834fdef3f99c496.jpg?v=1776409250 Posaconazole Impurity 74 | 170985-86-1 Posaconazole Impurity 74|C4X-120874|170985-86-1 https://www.jk-sci.com/products/j5312292 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f1722a6b734ca066e072c0912ec5517f.jpg?v=1776330196 Z-L-leucine amide | 4801-79-0 Z-L-leucine amide|12292|4801-79-0 https://www.jk-sci.com/products/s57c4x-120880 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bca3cc5db430ed8fe90dba8a17cc53c6.jpg?v=1776409253 Posaconazole Impurity 80 | 1488301-79-6 Posaconazole Impurity 80|C4X-120880|1488301-79-6 https://www.jk-sci.com/products/s57c4x-12089 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_763acea6-aa34-49f4-8efc-b6d887ace16b.png?v=1774717169 Posaconazole Impurity 9 Posaconazole Impurity 9|C4X-12089 https://www.jk-sci.com/products/s57c4x-12101 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8e4ff5134a9163b9db4e962103473030.jpg?v=1776409256 Cefdinir CP Impurity A | 1450758-21-0 Cefdinir CP Impurity A|C4X-12101|1450758-21-0 https://www.jk-sci.com/products/s57c4x-121018 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0bae79d6cfdf25c9fd16a97165e9b8ad.jpg?v=1776409262 Cefdinir CP Impurity R | 178601-88-2 Cefdinir CP Impurity R|C4X-121018|178601-88-2 https://www.jk-sci.com/products/j5312306 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8be92c8a408a6df6068cac24d56f50db.jpg?v=1776330213 Na-Z-Nd-phthaloyl-L-ornithine | 7767-00-2 Na-Z-Nd-phthaloyl-L-ornithine|12306|7767-00-2 https://www.jk-sci.com/products/a01947085 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/104985.png?v=1776308193 N-(tert-Butoxycarbonyloxy)succinimide, 98% | 13139-12-3 N-(tert-Butoxycarbonyloxy)succinimide, 98%|947085|13139-12-3 https://www.jk-sci.com/products/j5312312 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ffd611df24138a82b8467de7fb927123.jpg?v=1776330222 Z-L-Phenylalanine tert-butyl ester | 7670-20-4 Z-L-Phenylalanine tert-butyl ester|12312|7670-20-4 https://www.jk-sci.com/products/j5312330 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9933ffbd18f868d4f3b19a7b9099efc2.jpg?v=1776330229 Z-O-tert-butyl-L-threonine benzyl ester | 212632-22-9 Z-O-tert-butyl-L-threonine benzyl ester|12330|212632-22-9 https://www.jk-sci.com/products/s57c4x-121023 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_2a73cdb4-60b4-4f29-8a44-e65d1a3a402b.png?v=1774969430 Cefdinir CP Impurity F Cefdinir CP Impurity F|C4X-121023 https://www.jk-sci.com/products/j5312357 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f6f8fc685554adc3cbc4dd2056c90cec.jpg?v=1776330238 Z-L-tyrosine ethyl ester | 16679-94-0 Z-L-tyrosine ethyl ester|12357|16679-94-0 https://www.jk-sci.com/products/j5312383 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6cd6c498c124dff11b77e9f91028c81a.jpg?v=1776330286 DL-Phenylalanine tert-butyl ester hydrochloride | 75898-47-4 DL-Phenylalanine tert-butyl ester hydrochloride|12383|75898-47-4 https://www.jk-sci.com/products/j5312412 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cb93874112fa765c428a0dd7c0713654.jpg?v=1776330353 D-Ala-D-Leu-OH·TFA | 1820579-48-3 D-Ala-D-Leu-OH·TFA|12412|1820579-48-3 https://www.jk-sci.com/products/s57c4x-12103 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/288fc8f3f5769506adaf4736d8582f32.jpg?v=1776409272 Cefdinir CP Impurity O | 79350-10-0 Cefdinir CP Impurity O|C4X-12103|79350-10-0 https://www.jk-sci.com/products/j5312430 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6a6bf0869ae44cc0a8847b774c6a43cd.jpg?v=1776330370 D-Serine ethyl ester hydrochloride | 104055-46-1 D-Serine ethyl ester hydrochloride|12430|104055-46-1 https://www.jk-sci.com/products/s57c4x-121040 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/94631999814c0f64547ae15d6d326f25.jpg?v=1776409278 Cefdinir Impurity 40 | 1330164-22-1 Cefdinir Impurity 40|C4X-121040|1330164-22-1 https://www.jk-sci.com/products/j5312496 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b0f9a73dc019bbaf5999451108be1ded.jpg?v=1776330398 Fmoc-leucine Rink amide AM resin Fmoc-leucine Rink amide AM resin|12496 https://www.jk-sci.com/products/s57c4x-12105 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/66dce0ef5b14bae0b6a98694cba2d8eb.jpg?v=1776409285 Cefdinir CP Impurity T&U | 178949-04-7 Cefdinir CP Impurity T&U|C4X-12105|178949-04-7 https://www.jk-sci.com/products/j5312499 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bfe5eb2b37dc3fa9d26dfc61c377842e.jpg?v=1776330405 Fmoc-L-phenylalanine Rink amide AM resin Fmoc-L-phenylalanine Rink amide AM resin|12499 https://www.jk-sci.com/products/s57c4x-121053 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5312646 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b1d6a818d6bfc956706456c41a96aac3.jpg?v=1776330496 Na-Trityl-Nb-Fmoc-D-2,3-diaminopropionic acid | 1263047-04-6 Na-Trityl-Nb-Fmoc-D-2,3-diaminopropionic acid|12646|1263047-04-6 https://www.jk-sci.com/products/s57c4x-12108 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5312742 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/61b958b1e7eb1682dbf8f5807e10cc41.jpg?v=1776330532 Boc-D-Phe(2-trifluoromethyl)-OH | 346694-78-8 Boc-D-Phe(2-trifluoromethyl)-OH|12742|346694-78-8 https://www.jk-sci.com/products/j5312754 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0d3eb96bc4cea21820ba6c9f1ba4840d.jpg?v=1776330561 L-b-Homoproline hydrochloride | 53912-85-9 L-b-Homoproline hydrochloride|12754|53912-85-9 https://www.jk-sci.com/products/j5312760 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/890909456ab16ea27ff3b9e008669335.jpg?v=1776330582 L-b-Homoglutamine hydrochloride | 336182-05-9 L-b-Homoglutamine hydrochloride|12760|336182-05-9 https://www.jk-sci.com/products/j5312767 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e36ca73ec11168a584ef7ff20f416b82.jpg?v=1776330605 Fmoc-O-tert-butyl-L-b-homoserine | 203854-51-7 Fmoc-O-tert-butyl-L-b-homoserine|12767|203854-51-7 https://www.jk-sci.com/products/a01947089 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/aa5591215cffefde88ed08c0e9543650.jpg?v=1776308196 (2-Hydroxyphenyl)diphenylphosphine, 97% | 60254-10-6 (2-Hydroxyphenyl)diphenylphosphine, 97%|947089|60254-10-6 https://www.jk-sci.com/products/j5312787 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4410714c0ffce529164b294b6349e395.jpg?v=1776330666 Boc-L-b-homoglutamic acid 6-benzyl ester | 218943-30-7 Boc-L-b-homoglutamic acid 6-benzyl ester|12787|218943-30-7 https://www.jk-sci.com/products/s57c4x-121112 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/519376.png?v=1775060551 Paracetamol EP Impurity I | 118-93-4 Paracetamol EP Impurity I|C4X-121112|118-93-4 https://www.jk-sci.com/products/j5312800 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e9f724d82ae742513f5fe5719690a837.jpg?v=1776330694 Z-N-methyl-a-aminoisobutyric acid | 144332-60-5 Z-N-methyl-a-aminoisobutyric acid|12800|144332-60-5 https://www.jk-sci.com/products/s57c4x-112883 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_0be5f5e4-927e-4fb7-bb9a-555eeb4b8a1a.png?v=1775072580 N-Nitroso Sildenafil EP Impurity F N-Nitroso Sildenafil EP Impurity F|C4X-112883 https://www.jk-sci.com/products/s57c4x-113282 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/418666_5754d937-2bb1-440c-97a3-9f81a9b0d053.png?v=1774886667 Atorvastatin Impurity 82 | 125971-96-2 Atorvastatin Impurity 82|C4X-113282|125971-96-2 https://www.jk-sci.com/products/s57c4x-1138146 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a1219557a2225984d4a56df8dc433317.jpg?v=1776408105 Dapagliflozin Impurity 146 | 1938090-31-3 Dapagliflozin Impurity 146|C4X-1138146|1938090-31-3 https://www.jk-sci.com/products/s57c4x-1144 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4db5e3cf6dcde4cfd1e50820cec48291.jpg?v=1776408277 Sitagliptin Phosphate | 654671-78-0 Sitagliptin Phosphate|C4X-1144|654671-78-0 https://www.jk-sci.com/products/s57c4x-114496 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5307949 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6fa0c24d23417b45da8d3390e7e6e1e9.jpg?v=1776328389 Caffeic acid phenethyl ester | 104594-70-9 Caffeic acid phenethyl ester|07949|104594-70-9 https://www.jk-sci.com/products/a01947485 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/eaac5ad8d3f8baea81f4847dac44de68.jpg?v=1776308228 7-Bromoquinolin-2(1H)-one, 97% | 99465-10-8 7-Bromoquinolin-2(1H)-one, 97%|947485|99465-10-8 https://www.jk-sci.com/products/j5309005 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/960669c99d31f305a357e495af5a5234.jpg?v=1776328739 Z-L-valine trifluoroethyl ester | 203640-52-2 Z-L-valine trifluoroethyl ester|09005|203640-52-2 https://www.jk-sci.com/products/j5307271 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/426864c1a8bc7175bafc6c91b9a4d03c.jpg?v=1776327797 Fmoc-N-methyl-L-phenylglycine | 574739-36-9 Fmoc-N-methyl-L-phenylglycine|07271|574739-36-9 https://www.jk-sci.com/products/s57c4x-114937 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/481973_d23fbe1a-71b6-4b5a-9006-0596cd194e89.png?v=1774667691 Cefoperazone | 62893-19-0 Cefoperazone|C4X-114937|62893-19-0 https://www.jk-sci.com/products/j5310918 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7299580f3f4bfd0d2b3a84c4e332ff46.jpg?v=1776329165 1,2-Dimyristoyl-sn-glycero-3-phosphoethanolamine | 998-07-2 1,2-Dimyristoyl-sn-glycero-3-phosphoethanolamine|10918|998-07-2 https://www.jk-sci.com/products/s57c4x-116013 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b12a54af0ecd0548482912bdf1f1b117.jpg?v=1776408508 Cholic Acid Impurity 13 | 2304-92-9 Cholic Acid Impurity 13|C4X-116013|2304-92-9 https://www.jk-sci.com/products/j5310545 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d3dfa08e8eff31fe94f92789c68e2991.jpg?v=1776329019 1-Boc-piperidine-4-Fmoc-amino-4-carboxylic acid | 183673-66-7 1-Boc-piperidine-4-Fmoc-amino-4-carboxylic acid|10545|183673-66-7 https://www.jk-sci.com/products/s57c4x-116243 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3e5eb33758948dfa1922a2d96deab672_2cf42759-c825-4e8c-8b90-405eafc15399.jpg?v=1776408562 Febuxostat Impurity 43 | 161798-03-4 Febuxostat Impurity 43|C4X-116243|161798-03-4 https://www.jk-sci.com/products/a01947660 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9349837.png?v=1776308249 N-Ethylxanthyl phthalimide, 98% | 72731-86-3 N-Ethylxanthyl phthalimide, 98%|947660|72731-86-3 https://www.jk-sci.com/products/j5311290 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/417136014993b1dc887b8c4f6c482075.jpg?v=1776329374 Boc-1,5-diaminopentane·HCl | 77835-31-5 Boc-1,5-diaminopentane·HCl|11290|77835-31-5 https://www.jk-sci.com/products/j5311628 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/aecde09ccfab7b466767cce8f6c43a45.jpg?v=1776329508 Fmoc-D-glutamic acid a-9-fluorenylmethyl ester | 252049-17-5 Fmoc-D-glutamic acid a-9-fluorenylmethyl ester|11628|252049-17-5 https://www.jk-sci.com/products/s57c4x-116283 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_bf1f13ca-1277-466d-8622-cd35482dcff6.png?v=1774902875 Febuxostat Impurity 83 Febuxostat Impurity 83|C4X-116283 https://www.jk-sci.com/products/s57c4x-116431 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_eaaac92e-68c6-44bd-b24e-89a7c3262a86.png?v=1774712712 N-Nitroso Oxcarbazepine EP Impurity C N-Nitroso Oxcarbazepine EP Impurity C|C4X-116431 https://www.jk-sci.com/products/s57c4x-11635 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/43ba2e14709e02862c2dbf603f97f45d.jpg?v=1776408606 Ceftriaxone Sodium EP Impurity E | 58909-56-1 Ceftriaxone Sodium EP Impurity E|C4X-11635|58909-56-1 https://www.jk-sci.com/products/a01250721 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/250721.png?v=1784651442 16-Hexadecanolide, 97% | 109-29-5 16-Hexadecanolide, 97%|250721|109-29-5 https://www.jk-sci.com/products/s57c4x-116549 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/622223_5ca270ae-f697-4a36-91e4-7a928ac38367.png?v=1774902886 Dexamethasone Phosphate | 312-93-6 Dexamethasone Phosphate|C4X-116549|312-93-6 https://www.jk-sci.com/products/a01250893 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/250893.png?v=1784651449 Molybdenum boride, 99.5%, metal basis | 12006-98-3 Molybdenum boride, 99.5%, metal basis|250893|12006-98-3 https://www.jk-sci.com/products/j5311677 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e45f62e2df129a0fae1673ef801b994f.jpg?v=1776329574 L-Glutamic acid g-benzyl ester a-tert-butyl ester hydrochloride | 105590-97-4 L-Glutamic acid g-benzyl ester a-tert-butyl ester hydrochloride|11677|105590-97-4 https://www.jk-sci.com/products/s57c4x-11664 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/342604_3dc79e10-d684-40c1-90ed-41f156e76dbd.png?v=1774886692 Sodium Valproate EP Impurity L | 97-61-0 Sodium Valproate EP Impurity L|C4X-11664|97-61-0 https://www.jk-sci.com/products/a01251478 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/251478.png?v=1784651472 N-(3-Aminopropyl)-N-methylaniline, 97% | 53485-07-7 N-(3-Aminopropyl)-N-methylaniline, 97%|251478|53485-07-7 https://www.jk-sci.com/products/s57c4x-116833 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-116922 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1a10e800ca973f3130772d8946639860_04aeb3f4-05cf-4712-87c9-35c4bed94b96.jpg?v=1776408772 Rosuvastatin Impurity 22 | 355806-00-7 Rosuvastatin Impurity 22|C4X-116922|355806-00-7 https://www.jk-sci.com/products/s57c4x-11731 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_a99fcfb8-5c0b-47d6-89f0-152bc092dd80.png?v=1774896511 Acarbose EP Impurity A | 1013621-79-8 Acarbose EP Impurity A|C4X-11731|1013621-79-8 https://www.jk-sci.com/products/j5311915 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dbed3fc7362905c6ef5969529e69c716.jpg?v=1776329905 Benzyl-L-methionine methyl ester hydrochloride | 402929-60-6 Benzyl-L-methionine methyl ester hydrochloride|11915|402929-60-6 https://www.jk-sci.com/products/j5312109 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/57e646f5496bd1bffda1eaa1abf3681c.jpg?v=1776330066 L-1,2,3,4-Tetrahydronorharman-3-carboxylic acid methyl ester hydrochloride | 83159-19-7 L-1,2,3,4-Tetrahydronorharman-3-carboxylic acid methyl ester hydrochloride|12109|83159-19-7 https://www.jk-sci.com/products/a01252446 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/252446_c7ac550b-6e0f-422c-afaa-df95f7974420.png?v=1784651518 5-Bromo-2-fluorobenzyl alcohol, 98% | 99725-13-0 5-Bromo-2-fluorobenzyl alcohol, 98%|252446|99725-13-0 https://www.jk-sci.com/products/j5311732 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/86ffce44a9eda50ab61633debd4fffd6.jpg?v=1776329655 Z-O-trityl-L-serine | 1330286-53-7 Z-O-trityl-L-serine|11732|1330286-53-7 https://www.jk-sci.com/products/j5311841 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/907fb0af38b262b4d4fa70c1de5ab502.jpg?v=1776329812 Boc-D-serine benzyl ester | 141527-78-8 Boc-D-serine benzyl ester|11841|141527-78-8 https://www.jk-sci.com/products/j5311967 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/44994a33e2684ac1e8c48af428fb60ea.jpg?v=1776329970 Na-Fmoc-Ne-trityl-L-lysine | 111061-54-2 Na-Fmoc-Ne-trityl-L-lysine|11967|111061-54-2 https://www.jk-sci.com/products/a01253219 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/456061.png?v=1784651555 5-Nitro-6-methyluracil, 98% | 16632-21-6 5-Nitro-6-methyluracil, 98%|253219|16632-21-6 https://www.jk-sci.com/products/a01253000 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9c7d04c6d86e0779377149ec62ae653d.jpg?v=1784651538 Phenyl vinyl sulfone, 98% | 5535-48-8 Phenyl vinyl sulfone, 98%|253000|5535-48-8 https://www.jk-sci.com/products/s57c4x-1176155 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bc0816899cdece4dd64f6b06b0d17c8d_71775242-d4bb-4001-a298-b450d287f0ff.jpg?v=1776408824 Salbutamol Intermediate Impurity 55 | 62932-94-9 Salbutamol Intermediate Impurity 55|C4X-1176155|62932-94-9 https://www.jk-sci.com/products/s57c4x-11757 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0dc3c9824e1278ec18345e0f2bcf9194.jpg?v=1776408806 Macitentan Impurity 7 | 1433875-21-8 Macitentan Impurity 7|C4X-11757|1433875-21-8 https://www.jk-sci.com/products/s57c4x-117652 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_98a6b96f-f50a-4160-832a-b87335808fef.png?v=1774962382 Salbutamol EP Impurity K HCl Salbutamol EP Impurity K HCl|C4X-117652 https://www.jk-sci.com/products/s57c4x-117712 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fbb71639033a2ba2c5828dbe35289bf7.jpg?v=1776408869 Hydrochlorothiazide Impurity 12 | 5250-72-6 Hydrochlorothiazide Impurity 12|C4X-117712|5250-72-6 https://www.jk-sci.com/products/j5312152 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1defaa0e0b5f6c8e27dc2567c4f4f17e.jpg?v=1776330103 Phthaloyl-b-alanine | 3339-73-9 Phthaloyl-b-alanine|12152|3339-73-9 https://www.jk-sci.com/products/j5312218 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8ec90412f5c0a02dffb6f820c32f30a1.jpg?v=1776330145 Z-L-aspartic acid b-tert-butyl ester a-methyl ester | 63327-57-1 Z-L-aspartic acid b-tert-butyl ester a-methyl ester|12218|63327-57-1 https://www.jk-sci.com/products/s57c4x-118113 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/718344925354c73319492c0dfc60f224.jpg?v=1776408902 Carbamazepine Impurity 13 | 75272-34-3 Carbamazepine Impurity 13|C4X-118113|75272-34-3 https://www.jk-sci.com/products/s57c4x-11855 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5312239 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0c07255fc00df3c0a67d53ce469d2da6.jpg?v=1776330169 Z-DL-norleucine | 15027-13-1 Z-DL-norleucine|12239|15027-13-1 https://www.jk-sci.com/products/a01254087 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/254087.png?v=1784651589 (S)-(+)-3-Aminopyrrolidine dihydrochloride, 98% | 116183-83-6 (S)-(+)-3-Aminopyrrolidine dihydrochloride, 98%|254087|116183-83-6 https://www.jk-sci.com/products/s57c4x-118316 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/82a8115b042e681f1d20ed4d57f68267.jpg?v=1776408917 Terbutaline EP Impurity B Hemisulphate | 153657-83-1 Terbutaline EP Impurity B Hemisulphate|C4X-118316|153657-83-1 https://www.jk-sci.com/products/a01255333 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/255333.png?v=1784651635 2-Amino-3-methoxybenzoic acid, 97% | 3177-80-8 2-Amino-3-methoxybenzoic acid, 97%|255333|3177-80-8 https://www.jk-sci.com/products/j5312276 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/17e7c8e38fe06070beff8cb5b5d727ee.jpg?v=1776330193 Z-glycine methyl ester | 1212-53-9 Z-glycine methyl ester|12276|1212-53-9 https://www.jk-sci.com/products/s57c4x-11782 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e600a7346302aaddf832382c90f6bd96_dd445b06-099f-4005-b5cb-4c1c28033027.jpg?v=1776408886 Olanzapine Ep Impurity B | 221176-49-4 Olanzapine Ep Impurity B|C4X-11782|221176-49-4 https://www.jk-sci.com/products/s57c4x-11882 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-118737 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_3a9f60b2-b677-48b2-aecc-b297781d7edb.png?v=1774904429 Tamsulosin EP Impurity H HCl Tamsulosin EP Impurity H HCl|C4X-118737 https://www.jk-sci.com/products/j5312311 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a546ec682ccbaee25389c9f3fe109061.jpg?v=1776330217 Z-L-phenylalanine 4-nitrobenzyl ester Z-L-phenylalanine 4-nitrobenzyl ester|12311 https://www.jk-sci.com/products/j5312346 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ad410f09b62dffbd12a38254237a2236.jpg?v=1776330232 Z-3,5-diiodo-L-tyrosine ethyl ester | 102202-92-6 Z-3,5-diiodo-L-tyrosine ethyl ester|12346|102202-92-6 https://www.jk-sci.com/products/a01254378 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/312785.png?v=1784651607 2-Methoxyphenylboronic acid, 98% | 5720-06-9 2-Methoxyphenylboronic acid, 98%|254378|5720-06-9 https://www.jk-sci.com/products/s57c4x-119118 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-119514 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_d35675f2-9d27-41b0-834b-2e5790adf709.png?v=1774718908 Tocopherol Impurity 14 Tocopherol Impurity 14|C4X-119514 https://www.jk-sci.com/products/j5312746 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8820e92ef5ab017048c96fa125323558.jpg?v=1776330543 Z-L-homoserine lactone | 35677-89-5 Z-L-homoserine lactone|12746|35677-89-5 https://www.jk-sci.com/products/j5312387 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ee055a5a56df4568183bd97f90a834d8.jpg?v=1776330300 DL-Methioninol | 16720-80-2 DL-Methioninol|12387|16720-80-2 https://www.jk-sci.com/products/j5312474 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bb385d7a324d8e76249fc435e6b7d89c.jpg?v=1776330388 Fmoc-L-alanine Rink amide AM resin Fmoc-L-alanine Rink amide AM resin|12474 https://www.jk-sci.com/products/s57c4x-119339 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-11948 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/457913_ed724fa1-c606-4513-a0c8-a10b750a68a0.png?v=1775080650 Lamivudine EP Impurity E | 71-30-7 Lamivudine EP Impurity E|C4X-11948|71-30-7 https://www.jk-sci.com/products/s57c4x-11886 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-119710 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d86782457306f1d3ce074a771d99ce10.jpg?v=1776409028 Sodium Fusidate EP Impurity J | 13011-12-6 Sodium Fusidate EP Impurity J|C4X-119710|13011-12-6 https://www.jk-sci.com/products/j5312762 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1156a9fa59389c3ae1165d463b05bdd1.jpg?v=1776330588 L-b-Homoalanine hydrochloride | 58610-41-6 L-b-Homoalanine hydrochloride|12762|58610-41-6 https://www.jk-sci.com/products/j5312605 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a6950db10d15217625e354696d8d22eb.jpg?v=1776330444 Fmoc-L-cysteine amide | 623177-62-8 Fmoc-L-cysteine amide|12605|623177-62-8 https://www.jk-sci.com/products/s57c4x-119718 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7ce4e886fe8e68395594a02f144344ef.jpg?v=1776409041 Sodium Fusidate Impurity 18 | 16391-75-6 Sodium Fusidate Impurity 18|C4X-119718|16391-75-6 https://www.jk-sci.com/products/s57c4x-11974 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_6748c1c5-643e-4ae2-a41d-9d88280d97ea.png?v=1774721997 Sodium Fusidate EP Impurity D Sodium Fusidate EP Impurity D|C4X-11974 https://www.jk-sci.com/products/s57c4x-1198100 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/437980_16c9c997-3c03-435a-84ea-586e1d169c35.png?v=1775076255 Eltrombopag Impurity 100 | 15969-09-2 Eltrombopag Impurity 100|C4X-1198100|15969-09-2 https://www.jk-sci.com/products/s57c4x-11979 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/14a2cf2035eca8d6fc97cbad0de503ed.jpg?v=1776409059 Sodium Fusidate EP Impurity I | 5951-83-7 Sodium Fusidate EP Impurity I|C4X-11979|5951-83-7 https://www.jk-sci.com/products/j5318897 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/48f3f97cc5ebf9abb57cb3c01f8b5978.jpg?v=1776339047 3-Cyanomethyl-pyrrolidine-1-carboxylic acid tert-butyl ester | 142253-46-1 3-Cyanomethyl-pyrrolidine-1-carboxylic acid tert-butyl ester|18897|142253-46-1 https://www.jk-sci.com/products/j5312797 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/01deb157496c1c5eb6cf433f37575358.jpg?v=1776330691 Boc-3-iodo-D-alanine methyl ester | 170848-34-7 Boc-3-iodo-D-alanine methyl ester|12797|170848-34-7 https://www.jk-sci.com/products/s57c4x-119837 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/325011_7b1251b7-9f0d-4d00-8805-2d64163304d5.png?v=1774670665 Eltrombopag Impurity 37 | 7693-52-9 Eltrombopag Impurity 37|C4X-119837|7693-52-9 https://www.jk-sci.com/products/j5312843 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/09b2af0db21f4bd44d3ec6528ed1fcf3.jpg?v=1776330737 Fmoc-2-methyl-L-phenylalanine | 211637-75-1 Fmoc-2-methyl-L-phenylalanine|12843|211637-75-1 https://www.jk-sci.com/products/j5312845 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3ba3bc01596bf5d31143bdc86878c986.jpg?v=1776330744 Fmoc-3-methyl-D-phenylalanine | 352351-64-5 Fmoc-3-methyl-D-phenylalanine|12845|352351-64-5 https://www.jk-sci.com/products/s57c4x-119866 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_76db8fab-fc8a-40a2-9bb9-2fed5b81ae48.png?v=1774741211 Eltrombopag Impurity 66 Eltrombopag Impurity 66|C4X-119866 https://www.jk-sci.com/products/s57c4x-11988 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/68cd6e5f00daeed358825b3f0b47f98e.jpg?v=1776409080 Eltrombopag Impurity 8 | 376592-93-7 Eltrombopag Impurity 8|C4X-11988|376592-93-7 https://www.jk-sci.com/products/j5312856 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/826b6b465feb79d03d84f84cd7083170.jpg?v=1776330771 Boc-3-methyl-L-phenylalanine | 114873-06-2 Boc-3-methyl-L-phenylalanine|12856|114873-06-2 https://www.jk-sci.com/products/j5312859 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f8e20f51b7bc97d93b00b1f462d12bf0.jpg?v=1776330781 Boc-glycine tert-butyl ester | 111652-20-1 Boc-glycine tert-butyl ester|12859|111652-20-1 https://www.jk-sci.com/products/s57c4x-119915 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/217521_febbee5f-9170-47e3-9550-a049afee2494.png?v=1774640732 Simvastatin EP Impurity A(Ammonium Salt) | 139893-43-9 Simvastatin EP Impurity A(Ammonium Salt)|C4X-119915|139893-43-9 https://www.jk-sci.com/products/s57c4x-11993 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/42e02d760094d73a41f93a28b4c398d6.jpg?v=1776409092 Simvastatin EP Impurity C | 210980-68-0 Simvastatin EP Impurity C|C4X-11993|210980-68-0 https://www.jk-sci.com/products/s57c4x-11997 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0aa8813d13e8e9f94cfd7ec594863984.jpg?v=1776409101 Simvastatin EP Impurity G | 1449248-72-9 Simvastatin EP Impurity G|C4X-11997|1449248-72-9 https://www.jk-sci.com/products/s57c4x-120126 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/32949ea83e8c138d408779c9f0990d0e.jpg?v=1776409110 Cefotaxime S-Oxide | 97466-27-8 Cefotaxime S-Oxide|C4X-120126|97466-27-8 https://www.jk-sci.com/products/s57c4x-12016 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/69a448641b32329dbeef515d8a17ffae.jpg?v=1776409119 Cefotaxime EP Impurity F | 175032-97-0 Cefotaxime EP Impurity F|C4X-12016|175032-97-0 https://www.jk-sci.com/products/j5312863 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/45b75871245d8dad3f9c2bfa42635d44.jpg?v=1776330795 Boc-S-tert-butylthio-L-cysteine | 30044-61-2 Boc-S-tert-butylthio-L-cysteine|12863|30044-61-2 https://www.jk-sci.com/products/j5312911 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7481e61e5c1037a143209b02033cae6f.jpg?v=1776330850 N-(tert-Butoxycarbonyloxy)succinimide | 13139-12-3 N-(tert-Butoxycarbonyloxy)succinimide|12911|13139-12-3 https://www.jk-sci.com/products/j5312888 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/92a0323dfb794aa1d95c7c7962dfd313.jpg?v=1776330815 Boc-L-b-phenylalanine | 161024-80-2 Boc-L-b-phenylalanine|12888|161024-80-2 https://www.jk-sci.com/products/s57c4x-12023 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/df0a45438e775c1d8e1649611c8f1ca8.jpg?v=1776409124 Melitracen Impurity 3 | 5447-86-9 Melitracen Impurity 3|C4X-12023|5447-86-9 https://www.jk-sci.com/products/j5312958 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3c27f9b2a549545d03d59056b3b96d76.jpg?v=1776330901 6-Nitroveratryl chloroformate | 42855-00-5 6-Nitroveratryl chloroformate|12958|42855-00-5 https://www.jk-sci.com/products/j5312946 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/185d486952a165a33ea9a89974690614.jpg?v=1776330889 Boc-b-alanine 4-nitrophenyl ester | 17547-09-0 Boc-b-alanine 4-nitrophenyl ester|12946|17547-09-0 https://www.jk-sci.com/products/j5312962 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8f6df3524999c3dcf931b9b8fa3a580b.jpg?v=1776330914 5-(Boc-amino)-1-pentanol | 75178-90-4 5-(Boc-amino)-1-pentanol|12962|75178-90-4 https://www.jk-sci.com/products/a01255351 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/489245.png?v=1784651637 4-Amino-3-nitropyridine, 98% | 1681-37-4 4-Amino-3-nitropyridine, 98%|255351|1681-37-4 https://www.jk-sci.com/products/s57c4x-120322 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/026abf3bea7342eeb07edf155a97f8de.jpg?v=1776409137 Bupropion Impurity 22 | 2133460-43-0 Bupropion Impurity 22|C4X-120322|2133460-43-0 https://www.jk-sci.com/products/s57c4x-120347 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0ccddd4cba0aabca20f8f0e32d6d84b0.jpg?v=1776409154 Hydroxy Bupropion-d6 | 1216893-18-3 Hydroxy Bupropion-d6|C4X-120347|1216893-18-3 https://www.jk-sci.com/products/j5312975 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fe84f5782cef940bbf37735d21387aa8.jpg?v=1776330938 4-Bromo-1,2-dimethylbenzene | 583-71-1 4-Bromo-1,2-dimethylbenzene|12975|583-71-1 https://www.jk-sci.com/products/s57c4x-12041 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/34090f518085e6cfc50f96aa3082b708.jpg?v=1776409161 Cefotiam Impurity 1 | 775233-43-7 Cefotiam Impurity 1|C4X-12041|775233-43-7 https://www.jk-sci.com/products/j5312988 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ac83b8dc0f6014b827ac2bc2c2c2cea5.jpg?v=1776330954 3,4-Dihydro-2H-pyran | 110-87-2 3,4-Dihydro-2H-pyran|12988|110-87-2 https://www.jk-sci.com/products/s57c4x-120537 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_d0790ff5-bf68-4f83-884c-aeb4b5abbf79.png?v=1774668725 Tazobactam Impurity 37 Tazobactam Impurity 37|C4X-120537 https://www.jk-sci.com/products/s57c4x-120811 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c7cdcea377723fe68845649ed997dfc5.jpg?v=1776409175 Posaconazole Impurity 11 | 159811-30-0 Posaconazole Impurity 11|C4X-120811|159811-30-0 https://www.jk-sci.com/products/j5314013 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b396a2f9362e41871aaa53417ab4c8bb.jpg?v=1776330999 O-Benzyl-D-threonine | 86062-17-1 O-Benzyl-D-threonine|14013|86062-17-1 https://www.jk-sci.com/products/s57c4x-1208199 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_dead0bfb-01d7-44b0-a0a8-e7fc5e43ade7.png?v=1774661973 Posaconazole Impurity 99 Posaconazole Impurity 99|C4X-1208199 https://www.jk-sci.com/products/s57c4x-120813 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-120817 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e11e35e26fcfe279aae886ad336a23af.jpg?v=1776409193 Posaconazole Impurity 17(R,R,R,S) | 171228-51-6 Posaconazole Impurity 17(R,R,R,S)|C4X-120817|171228-51-6 https://www.jk-sci.com/products/s57c4x-1208181 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_3c3bfb1f-e175-4be4-93df-657bf18bcbc7.png?v=1774902919 Posaconazole Impurity 81 Posaconazole Impurity 81|C4X-1208181 https://www.jk-sci.com/products/s57c4x-1208261 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/55c9f1b69309c32a5d9faa3d3b440f47.jpg?v=1776409209 Posaconazole Impurity 261 | 2376724-98-8 Posaconazole Impurity 261|C4X-1208261|2376724-98-8 https://www.jk-sci.com/products/s57c4x-121013 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3d4f5d03c9eb6aff9cc448a932e6dc83.jpg?v=1776409258 Cefdinir CP Impurity I&J&K&L | 178422-42-9 Cefdinir CP Impurity I&J&K&L|C4X-121013|178422-42-9 https://www.jk-sci.com/products/s57c4x-120852 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/93f3ca175c2c568d322d833b82294b9a.jpg?v=1776409236 Posaconazole Impurity 52 | 161532-56-5 Posaconazole Impurity 52|C4X-120852|161532-56-5 https://www.jk-sci.com/products/s57c4x-120845 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4f10c38a1b6d77c11eca8406a6fe52fb.jpg?v=1776409227 Posaconazole Impurity 45 | 1388148-30-8 Posaconazole Impurity 45|C4X-120845|1388148-30-8 https://www.jk-sci.com/products/j5314088 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f7e443100d4e277694eed71d9f0036ed.jpg?v=1776331102 Phg-Gly-OH | 134624-91-2 Phg-Gly-OH|14088|134624-91-2 https://www.jk-sci.com/products/s57c4x-120840 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/18c50e250aee750791a1af2d98bc2839.jpg?v=1776409218 Posaconazole Impurity 40 | 1370190-94-5 Posaconazole Impurity 40|C4X-120840|1370190-94-5 https://www.jk-sci.com/products/s57c4x-120863 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_06a4e7ed-8eea-4ebf-bf96-c4820d4f99cf.png?v=1775135261 Posaconazole Impurity 63 Posaconazole Impurity 63|C4X-120863 https://www.jk-sci.com/products/j5314070 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6b703986e4c93b26f3c32af937643a53.jpg?v=1776331084 Boc-4-nitro-L-phenylalanine dicyclohexylammonium salt | 102185-42-2 Boc-4-nitro-L-phenylalanine dicyclohexylammonium salt|14070|102185-42-2 https://www.jk-sci.com/products/j5314044 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/59767792e076d1040ae3400a2f8574cc.jpg?v=1776331048 Fmoc-L-Phe(2-trifluoromethyl)-OH | 352523-16-1 Fmoc-L-Phe(2-trifluoromethyl)-OH|14044|352523-16-1 https://www.jk-sci.com/products/s57c4x-120883 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_c331383a-4663-4313-a899-c1998c75b241.png?v=1775052484 Posaconazole Impurity 83 Posaconazole Impurity 83|C4X-120883 https://www.jk-sci.com/products/s57c4x-121029 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_3886c27a-8aac-4ab8-b62b-8540eb855642.png?v=1774986221 Cefdinir Impurity 29 Cefdinir Impurity 29|C4X-121029 https://www.jk-sci.com/products/j5314099 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5b69ed4e95aaadb8417be5ac4c0166a0.jpg?v=1776331129 Boc-D-phenylalanine methyl ester | 77119-84-7 Boc-D-phenylalanine methyl ester|14099|77119-84-7 https://www.jk-sci.com/products/s57c4x-121045 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ab55f6f6f3fbc48cb62c4b8df4c7eb1d.jpg?v=1776409281 Cefdinir USP Impurity A | 178949-03-6 Cefdinir USP Impurity A|C4X-121045|178949-03-6 https://www.jk-sci.com/products/j5314123 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e7385a1dbf1804dcb000674322069226.jpg?v=1776331158 Boc-(2R,3R)-3-amino-2-hydroxy-4-phenylbutyric acid | 77171-41-6 Boc-(2R,3R)-3-amino-2-hydroxy-4-phenylbutyric acid|14123|77171-41-6 https://www.jk-sci.com/products/s57c4x-12106 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7e8ec3a44cac357d2edbc974cbf8b794.jpg?v=1776409287 Cefdinir Impurity 6 | 79350-14-4 Cefdinir Impurity 6|C4X-12106|79350-14-4 https://www.jk-sci.com/products/j5314227 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8bba797733cb77f9f90f6684b764ce59.jpg?v=1776331182 Piperazine trityl resin Piperazine trityl resin|14227 https://www.jk-sci.com/products/j5314252 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7aacb786969032117468831e6228abc7.jpg?v=1776331189 D-Ala-Pro-OH·HCl | 61430-12-4 D-Ala-Pro-OH·HCl|14252|61430-12-4 https://www.jk-sci.com/products/j5314278 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/20d59d90cb427eba26fef7fea35c11a4.jpg?v=1776331230 Allyl bromide | 106-95-6 Allyl bromide|14278|106-95-6 https://www.jk-sci.com/products/s57c4x-121115 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/505567.png?v=1775153145 Paracetamol EP Impurity N | 3070-86-8 Paracetamol EP Impurity N|C4X-121115|3070-86-8 https://www.jk-sci.com/products/s57c4x-121125 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/073c1c4dd3ea9f3982ef7b4212c512cd.jpg?v=1776409294 Acetaminophen Impurity 25 | 98966-14-4 Acetaminophen Impurity 25|C4X-121125|98966-14-4 https://www.jk-sci.com/products/s57c4x-12112 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/145666.png?v=1774669718 Acetaminophen EP Impurity H | 2623-33-8 Acetaminophen EP Impurity H|C4X-12112|2623-33-8 https://www.jk-sci.com/products/s57c4x-121128 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b7b09015d7132b12e23c9de2f1e7a17f.jpg?v=1776409300 Paracetamol EP Impurity O | 2575516-61-7 Paracetamol EP Impurity O|C4X-121128|2575516-61-7 https://www.jk-sci.com/products/s57c4x-121132 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/347117.png?v=1774664668 Acetaminophen Impurity 32 | 874-60-2 Acetaminophen Impurity 32|C4X-121132|874-60-2 https://www.jk-sci.com/products/j5306681 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bccae60ef7dced0869e021e0fafd192f.jpg?v=1776326949 L-Phenylalanine hydrazide | 52386-52-4 L-Phenylalanine hydrazide|06681|52386-52-4 https://www.jk-sci.com/products/j5310723 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fa12d7a63ed2aacc6b6b71516306761a.jpg?v=1776329118 Anisindione | 117-37-3 Anisindione|10723|117-37-3 https://www.jk-sci.com/products/j5308466 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bf3a3e98d3e1fb6a5a4eddec0c315cd9.jpg?v=1776328567 DL-a-tert-Butylglycine | 33105-81-6 DL-a-tert-Butylglycine|08466|33105-81-6 https://www.jk-sci.com/products/j5311588 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4e980a090434d3c89bd5d429e2b560ee.jpg?v=1776329461 Na-Allyloxycarbonyl-Nd-Boc-L-ornithine dicyclohexyl ammonium salt | 171820-74-9 Na-Allyloxycarbonyl-Nd-Boc-L-ornithine dicyclohexyl ammonium salt|11588|171820-74-9 https://www.jk-sci.com/products/j5311710 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/972384349b5ec32e00dd1eafb1534157.jpg?v=1776329626 Boc-1,3-diaminopropane·HCl | 127346-48-9 Boc-1,3-diaminopropane·HCl|11710|127346-48-9 https://www.jk-sci.com/products/s57c4x-12116 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/226525_3ed3c77a-8b4e-4a5a-ac91-cc6081f2ac21.png?v=1774717183 Paracetamol EP Impurity E | 99-93-4 Paracetamol EP Impurity E|C4X-12116|99-93-4 https://www.jk-sci.com/products/a01255539 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/288143.png?v=1784651652 3-Hydroxy-4-methoxybenzaldehyde, 99% | 621-59-0 3-Hydroxy-4-methoxybenzaldehyde, 99%|255539|621-59-0 https://www.jk-sci.com/products/j5311889 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6406f0d9a361cc1a411902ae96c72bdb.jpg?v=1776329859 Boc-Nin-formyl-L-1,2,3,4-tetrahydronorharmane-3-carboxylic acid | 327603-46-3 Boc-Nin-formyl-L-1,2,3,4-tetrahydronorharmane-3-carboxylic acid|11889|327603-46-3 https://www.jk-sci.com/products/s57c4x-1212 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-121222 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_915ad7bd-c0ef-4424-95da-febcf50473f0.png?v=1774722916 Ceftazidime Impurity 22 Ceftazidime Impurity 22|C4X-121222 https://www.jk-sci.com/products/j5312045 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ca3abade599807f5e49da98dc55fd586.jpg?v=1776330013 L-Glutamic acid g-methyl a-benzyl ester 4-toluenesulfonate salt | 32326-55-9 L-Glutamic acid g-methyl a-benzyl ester 4-toluenesulfonate salt|12045|32326-55-9 https://www.jk-sci.com/products/j5312194 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8a80c873c803efd0f2ae119135b50efd.jpg?v=1776330131 Z-DL-4-amino-3-hydroxybutyric acid | 118125-41-0 Z-DL-4-amino-3-hydroxybutyric acid|12194|118125-41-0 https://www.jk-sci.com/products/j5312243 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6622a03d1c29480ade8013944581059d.jpg?v=1776330179 Z-DL-valine | 3588-63-4 Z-DL-valine|12243|3588-63-4 https://www.jk-sci.com/products/s57c4x-121234 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3c371b1697b7be6f8ca1f207b9df0ff7.jpg?v=1776409315 Ceftazidime Impurity 34 | 72820-16-7 Ceftazidime Impurity 34|C4X-121234|72820-16-7 https://www.jk-sci.com/products/s57c4x-12126 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/a01255723 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/255723_55854df3-ffca-4353-9cdf-66ea5cfac8e7.png?v=1784651659 Boc-alanine, 98% | 3744-87-4 Boc-alanine, 98%|255723|3744-87-4 https://www.jk-sci.com/products/j5312325 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/121ab77753b1faa83b3a1cae6e34dde9.jpg?v=1776330224 Z-L-serine amide | 70897-15-3 Z-L-serine amide|12325|70897-15-3 https://www.jk-sci.com/products/j5312415 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ed43e5b14d051a818d6eba0e1d2249f2.jpg?v=1776330356 DL-Glutamic acid g-methyl ester | 14487-45-7 DL-Glutamic acid g-methyl ester|12415|14487-45-7 https://www.jk-sci.com/products/j5312647 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1c890da7a4c6bb12d12c34c18cb4d9cb.jpg?v=1776330500 Na-Trityl-Nb-Fmoc-L-2,3-diaminopropionic acid | 1263046-25-8 Na-Trityl-Nb-Fmoc-L-2,3-diaminopropionic acid|12647|1263046-25-8 https://www.jk-sci.com/products/s57c4x-12131 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ca91933b5c6d17263aa96510e8809acf.jpg?v=1776409327 Roxatidine Impurity 1 | 97900-88-4 Roxatidine Impurity 1|C4X-12131|97900-88-4 https://www.jk-sci.com/products/j5312773 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/44519d7917c2fe6231933d742a000663.jpg?v=1776330623 Fmoc-L-b-homoglutamic acid 6-tert-butyl ester | 203854-49-3 Fmoc-L-b-homoglutamic acid 6-tert-butyl ester|12773|203854-49-3 https://www.jk-sci.com/products/s57c4x-12134 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/397554.png?v=1774896530 Roxatidine Impurity 4 | 73279-04-6 Roxatidine Impurity 4|C4X-12134|73279-04-6 https://www.jk-sci.com/products/s57c4x-121321 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d5a727371be3ea53067ef257072374fa.jpg?v=1776409333 Roxatidine Impurity 21 | 108441-34-5 Roxatidine Impurity 21|C4X-121321|108441-34-5 https://www.jk-sci.com/products/s57c4x-121344 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/489413_f9317bc3-dabc-4313-8b39-e38751584211.png?v=1774880362 Roxatidine Impurity 44 | 6276-54-6 Roxatidine Impurity 44|C4X-121344|6276-54-6 https://www.jk-sci.com/products/j5312844 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a69e23138fecc614ee566fa66fbbd6f6.jpg?v=1776330740 Fmoc-2-cyano-L-phenylalanine | 401933-16-2 Fmoc-2-cyano-L-phenylalanine|12844|401933-16-2 https://www.jk-sci.com/products/s57c4x-121355 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/161339.png?v=1774664672 Roxatidine Impurity 55 | 100841-00-7 Roxatidine Impurity 55|C4X-121355|100841-00-7 https://www.jk-sci.com/products/j5312857 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/579c9dd946243b81304bb99b74759ad2.jpg?v=1776330775 Boc-2-methyl-L-phenylalanine | 114873-05-1 Boc-2-methyl-L-phenylalanine|12857|114873-05-1 https://www.jk-sci.com/products/j5312879 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8ff5ca4f7df13205f4f57a78e9ffc5c0_1d29730f-6c3c-4940-bd78-f9dd1af4b897.jpg?v=1776330804 O,O'-Bis(2-aminoethyl)polyethylene glycol 10,000 | 24991-53-5 O,O'-Bis(2-aminoethyl)polyethylene glycol 10,000|12879|24991-53-5 https://www.jk-sci.com/products/s57c4x-121357 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/270573_2e017e50-81b0-4253-be15-9a0b2e67e797.png?v=1774672699 Roxatidine Impurity 57 | 615-18-9 Roxatidine Impurity 57|C4X-121357|615-18-9 https://www.jk-sci.com/products/s57c4x-12151 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/21fd7d0fd9c7c6a2f2164bae8d051a94.jpg?v=1776409342 Cefradine EP Impurity G(Cefalexin EP Impurity E/Cefadroxil EP Impurity H) | 146794-70-9 Cefradine EP Impurity G(Cefalexin EP Impurity E/Cefadroxil EP Impurity H)|C4X-12151|146794-70-9 https://www.jk-sci.com/products/s57c4x-12137 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/315323.png?v=1774666703 Roxatidine Hemioxalate | 110925-92-3 Roxatidine Hemioxalate|C4X-12137|110925-92-3 https://www.jk-sci.com/products/j5312921 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6f18bc9d86f32fcc27d9c567798980ee.jpg?v=1776330860 Methanesulfonic acid | 75-75-2 Methanesulfonic acid|12921|75-75-2 https://www.jk-sci.com/products/a01255779 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/133274.png?v=1784651668 Ethyl 5-chloro-2-indolecarboxylate, 97% | 4792-67-0 Ethyl 5-chloro-2-indolecarboxylate, 97%|255779|4792-67-0 https://www.jk-sci.com/products/s57c4x-12153 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8b688b92de513a63f3b88743d1605ce0.jpg?v=1776409345 Cefradine EP Impurity E | 215172-75-1 Cefradine EP Impurity E|C4X-12153|215172-75-1 https://www.jk-sci.com/products/s57c4x-12161 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5312961 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f0c2e22da4ddc75f4f1ae5bb382406d1.jpg?v=1776330911 5-(Fmoc-amino)-1-pentanol | 209115-33-3 5-(Fmoc-amino)-1-pentanol|12961|209115-33-3 https://www.jk-sci.com/products/s57c4x-12201 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/599117.png?v=1775075137 Metformin EP Impurity A | 461-58-5 Metformin EP Impurity A|C4X-12201|461-58-5 https://www.jk-sci.com/products/j5312984 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2dcd535bf747f87bfb3c9a0528f2d8d6.jpg?v=1776330948 4-(Boc-amino)-1-butanol | 75178-87-9 4-(Boc-amino)-1-butanol|12984|75178-87-9 https://www.jk-sci.com/products/j5314029 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d7b1d381fd2caab6351b4801ae2ce896.jpg?v=1776331018 Piperazine-2-carboxylic acid | 133525-05-0 Piperazine-2-carboxylic acid|14029|133525-05-0 https://www.jk-sci.com/products/j5314076 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9bedc1f1739ef5936e29b38e04a79307.jpg?v=1776331093 Boc-DL-tyrosine | 142847-18-5 Boc-DL-tyrosine|14076|142847-18-5 https://www.jk-sci.com/products/s57c4x-12202 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/384386.png?v=1775075141 Metformin EP Impurity B | 4405-08-7 Metformin EP Impurity B|C4X-12202|4405-08-7 https://www.jk-sci.com/products/s57c4x-12203 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/425386_52d24b5d-a1cc-482d-ad51-cc58f8c6e757.png?v=1774723840 Metformin EP Impurity C | 1985-46-2 Metformin EP Impurity C|C4X-12203|1985-46-2 https://www.jk-sci.com/products/j5314119 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3b18d703b1931d21d70eef25a938f4b9.jpg?v=1776331151 (R)-1-Boc-2-tert-butyl-3-methyl-4-imidazolidinone | 119838-44-7 (R)-1-Boc-2-tert-butyl-3-methyl-4-imidazolidinone|14119|119838-44-7 https://www.jk-sci.com/products/s57c4x-1220529 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/29de8fc37c8ea81dc311ac1d2d90435d.jpg?v=1776409354 Tazobactam lmpurity 29 | 80353-26-0 Tazobactam lmpurity 29|C4X-1220529|80353-26-0 https://www.jk-sci.com/products/j5314251 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b6b28ff6a2545972eb0e96c23b9eb2f4.jpg?v=1776331186 D-Ala-Gly-OH·HCl | 3997-90-8 D-Ala-Gly-OH·HCl|14251|3997-90-8 https://www.jk-sci.com/products/s57c4x-12224 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ea203c55d43ac1521ec337fa7b9e5bb8.jpg?v=1776409371 Calcipotriol EP Impurity D | 112827-99-3 Calcipotriol EP Impurity D|C4X-12224|112827-99-3 https://www.jk-sci.com/products/s57c4x-12222 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_a045e2e8-940a-4731-b828-53dddb836507.png?v=1774717202 Calcipotriol EP Impurity B Calcipotriol EP Impurity B|C4X-12222 https://www.jk-sci.com/products/s57c4x-12209 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5314310 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/164946fafa679855c6d98ba97c574a14.jpg?v=1776331292 Acetyl-O-benzyl-L-serine | 35886-80-7 Acetyl-O-benzyl-L-serine|14310|35886-80-7 https://www.jk-sci.com/products/a01256041 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/113772.png?v=1784651691 4,6-Dimethyldibenzothiophene, 97% | 1207-12-1 4,6-Dimethyldibenzothiophene, 97%|256041|1207-12-1 https://www.jk-sci.com/products/a01255983 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/255983_8f0df769-1237-4cf2-8bc3-882079ccf14c.png?v=1784651681 4,4'-Bis(2-sulfonatostyryl)biphenyl disodium salt, 98% | 27344-41-8 4,4'-Bis(2-sulfonatostyryl)biphenyl disodium salt, 98%|255983|27344-41-8 https://www.jk-sci.com/products/j5314321 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4412c722c02e0ab4e9571d6adab29f14.jpg?v=1776331317 Z-DL-proline | 5618-96-2 Z-DL-proline|14321|5618-96-2 https://www.jk-sci.com/products/j5314324 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ff6e90df916ce372c8e5a81209c5ffa5.jpg?v=1776331329 1-Hydroxy-7-azabenzotriazole solution, 0.6 M in DMF | 39968-33-7 1-Hydroxy-7-azabenzotriazole solution, 0.6 M in DMF|14324|39968-33-7 https://www.jk-sci.com/products/j5314399 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/771bd53ca7d11c90b28977a30fb881aa.jpg?v=1776331443 O-Methyl-D-tyrosine hydrochloride | 70601-63-7 O-Methyl-D-tyrosine hydrochloride|14399|70601-63-7 https://www.jk-sci.com/products/j5314354 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3a84c550c87d22bba9606356fd26b6c1.jpg?v=1776331369 2,2'-Dithio-bis(5-nitropyridine) | 2127-10-8 2,2'-Dithio-bis(5-nitropyridine)|14354|2127-10-8 https://www.jk-sci.com/products/a01256641 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/258656.png?v=1784651721 6-Azauracil, 98% | 461-89-2 6-Azauracil, 98%|256641|461-89-2 https://www.jk-sci.com/products/j5314429 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b490e09627be6d2263af59701ae22d09.jpg?v=1776331487 3-Methoxy-2-butanol | 53778-72-6 3-Methoxy-2-butanol|14429|53778-72-6 https://www.jk-sci.com/products/j5314439 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/241f861b30ebefc92ff1bf1b27abb654.jpg?v=1776331501 Boc-S-allyloxy-amidomethyl-L-cysteine dicyclohexylamine salt Boc-S-allyloxy-amidomethyl-L-cysteine dicyclohexylamine salt|14439 https://www.jk-sci.com/products/j5314444 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fd53bcdf1bd1ccd52443b4a1db6f21fc.jpg?v=1776331517 Boc-O-allyloxycarbonyl-L-threonine dicyclohexylammonium salt | 147348-94-5 Boc-O-allyloxycarbonyl-L-threonine dicyclohexylammonium salt|14444|147348-94-5 https://www.jk-sci.com/products/j5314464 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/34306b4303216e5e0a9eb366508b287c.jpg?v=1776331574 Boc-3-amino-1-carboxymethyl-pyridin-2-one | 882847-09-8 Boc-3-amino-1-carboxymethyl-pyridin-2-one|14464|882847-09-8 https://www.jk-sci.com/products/j5314447 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c3963917670ae57ac0a9697fba43ca4f.jpg?v=1776331523 Fmoc-1-amino-cyclohexane acetic acid | 282524-98-5 Fmoc-1-amino-cyclohexane acetic acid|14447|282524-98-5 https://www.jk-sci.com/products/s57c4x-1223 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1306431fc1f5dbd79ddad194cc7b2a78.jpg?v=1776409373 Netupitant | 290297-26-6 Netupitant|C4X-1223|290297-26-6 https://www.jk-sci.com/products/j5314488 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bbc60df22a8a4103208b2e80dabc0101.jpg?v=1776331646 Boc-4-cyclohexyl-piperidine-4-carboxylic acid | 273378-16-8 Boc-4-cyclohexyl-piperidine-4-carboxylic acid|14488|273378-16-8 https://www.jk-sci.com/products/s57c4x-122421 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7291191d08f5d9fba0a1674a66741301.jpg?v=1776409383 Cefadroxil Impurity 21 | 144790-28-3 Cefadroxil Impurity 21|C4X-122421|144790-28-3 https://www.jk-sci.com/products/s57c4x-122417 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b514c01cf7ae05a7ab7f2e069aa6ae68.jpg?v=1776409377 Cefadroxil Impurity 17 | 700-63-0 Cefadroxil Impurity 17|C4X-122417|700-63-0 https://www.jk-sci.com/products/s57c4x-12243 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b0f33b1f6877b9f5fd8229ff4c6c8f3b.jpg?v=1776409389 Cefadroxil EP Impurity G（Cefradine EP Impurity F/Cefalexin EP Impurity D） | 34876-35-2 Cefadroxil EP Impurity G（Cefradine EP Impurity F/Cefalexin EP Impurity D）|C4X-12243|34876-35-2 https://www.jk-sci.com/products/s57c4x-12252 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6c651aa69f7dc5799c4817a295713f75.jpg?v=1776409395 Trimethoprim EP Impurity B | 30806-86-1 Trimethoprim EP Impurity B|C4X-12252|30806-86-1 https://www.jk-sci.com/products/j5314494 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/806f1050e4dbec64c33cc813c120a628.jpg?v=1776331663 (2S,4S)-Fmoc-4-fluoro-pyrrolidine-2-carboxylic acid | 203866-19-7 (2S,4S)-Fmoc-4-fluoro-pyrrolidine-2-carboxylic acid|14494|203866-19-7 https://www.jk-sci.com/products/s57c4x-12254 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d27d5f06e3046ed31f15222628d78448.jpg?v=1776409398 Trimethoprim EP Impurity D | 92440-76-1 Trimethoprim EP Impurity D|C4X-12254|92440-76-1 https://www.jk-sci.com/products/s57c4x-122610 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_3ca26548-e5d2-4d1b-89a7-a37862e97fa9.png?v=1774664683 Doxepin EP Impurity C HCl Doxepin EP Impurity C HCl|C4X-122610 https://www.jk-sci.com/products/s57c4x-12256 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/90ca8726f95aa3fbcbd7039e9ec520cd.jpg?v=1776409406 Trimethoprim EP Impurity F | 16285-82-8 Trimethoprim EP Impurity F|C4X-12256|16285-82-8 https://www.jk-sci.com/products/s57c4x-12263 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/389121.png?v=1774987901 Desmethyl Doxepin HCl (Nordoxepin HCl, Mixture of Z and E Isomers) | 2887-91-4 Desmethyl Doxepin HCl (Nordoxepin HCl, Mixture of Z and E Isomers)|C4X-12263|2887-91-4 https://www.jk-sci.com/products/j5314501 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cfb361190ffbd66972bc3ed3503abee7.jpg?v=1776331685 2-Iodo-L-phenylalanine | 167817-55-2 2-Iodo-L-phenylalanine|14501|167817-55-2 https://www.jk-sci.com/products/s57c4x-12272 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6fc140a27ec4a384d14df75d016e56c3.jpg?v=1776409412 Oxybuprocaine EP Impurity B | 23442-22-0 Oxybuprocaine EP Impurity B|C4X-12272|23442-22-0 https://www.jk-sci.com/products/s57c4x-12275 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_b6c9fcf5-1a5f-4146-b1cb-9d79ef71c155.png?v=1774896538 Oxybuprocaine Impurity 5 Oxybuprocaine Impurity 5|C4X-12275 https://www.jk-sci.com/products/j5314812 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/78f55792d1734806fcc0f05bbd1e7de8.jpg?v=1776331732 Fluorescein 6-isothiocyanate | 3012-71-3 Fluorescein 6-isothiocyanate|14812|3012-71-3 https://www.jk-sci.com/products/j5314855 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/252f7845c1d1eaee86e45d9c0f4da250.jpg?v=1776331785 Na-Fmoc-Ne-7-methoxycoumarin-4-acetyl-L-lysine | 386213-32-7 Na-Fmoc-Ne-7-methoxycoumarin-4-acetyl-L-lysine|14855|386213-32-7 https://www.jk-sci.com/products/j5314881 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f16e625e794df6cdab9d04af4b563ea8.jpg?v=1776331811 L-Alanine isopropyl ester hydrochloride | 62062-65-1 L-Alanine isopropyl ester hydrochloride|14881|62062-65-1 https://www.jk-sci.com/products/j5315011 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/010c0024acec0c4be22ca6346016dc70.jpg?v=1776331874 Boc-(R,S)-3-amino-3-(4-bromophenyl)propionic acid | 282524-86-1 Boc-(R,S)-3-amino-3-(4-bromophenyl)propionic acid|15011|282524-86-1 https://www.jk-sci.com/products/s57c4x-123012 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/eb5faf2229d4199993a4442252ed90ec.jpg?v=1776409421 Dexmedetomidine Impurity 12 | 2240179-65-9 Dexmedetomidine Impurity 12|C4X-123012|2240179-65-9 https://www.jk-sci.com/products/j5314954 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e8fab16258f8d84d809fb33b82abe505.jpg?v=1776331843 g-Aminobutyric acid benzyl ester p-tosylate | 26727-22-0 g-Aminobutyric acid benzyl ester p-tosylate|14954|26727-22-0 https://www.jk-sci.com/products/s57c4x-12301 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6fc956d9447a692d1269f2473f181986.jpg?v=1776409415 Dexmedetomidine Impurity 1 | 60907-90-6 Dexmedetomidine Impurity 1|C4X-12301|60907-90-6 https://www.jk-sci.com/products/j5315019 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5e5908789489ba06e3b80c44b8122cb0.jpg?v=1776331897 Boc-3-amino-5-(Fmoc-amino)benzoic acid | 779335-06-7 Boc-3-amino-5-(Fmoc-amino)benzoic acid|15019|779335-06-7 https://www.jk-sci.com/products/s57c4x-123016 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c30060c53a01ec45cddfa94719becc1c_af89c243-508d-4705-8b6c-735d8349166b.jpg?v=1776409427 Dexmedetomidine Impurity 16 | 60907-88-2 Dexmedetomidine Impurity 16|C4X-123016|60907-88-2 https://www.jk-sci.com/products/s57c4x-12302 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/605316_fb103b2b-650f-4187-8ac7-0092170f5fa0.png?v=1774884538 Dexmedetomidine Impurity 2 | 5779-93-1 Dexmedetomidine Impurity 2|C4X-12302|5779-93-1 https://www.jk-sci.com/products/j5307421 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/134ec18f56a6f645bd5bb557cda36336.jpg?v=1776328203 Fmoc-b-(2-furyl)-D-alanine | 220497-85-8 Fmoc-b-(2-furyl)-D-alanine|07421|220497-85-8 https://www.jk-sci.com/products/s57c4x-123026 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/550791_51ec306d-3b0d-43f5-b04e-ee4b733236f5.png?v=1774901875 Dexmedetomidine Impurity 26 | 603-79-2 Dexmedetomidine Impurity 26|C4X-123026|603-79-2 https://www.jk-sci.com/products/s57c4x-123031 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/596309_ddff3162-ad05-41b3-a5be-38bfa7312e36.png?v=1774723848 Dexmedetomidine Impurity 31 | 2142-71-4 Dexmedetomidine Impurity 31|C4X-123031|2142-71-4 https://www.jk-sci.com/products/a01256775 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/616685_308287bf-a7ad-497c-9d71-4ad0aeffad68.png?v=1784651731 3,4-Dihydroxybenzaldehyde, 98% | 139-85-5 3,4-Dihydroxybenzaldehyde, 98%|256775|139-85-5 https://www.jk-sci.com/products/j5310986 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8d838b25174a6134a4ad144de8c721a7.jpg?v=1776329220 Cinnamoyl-(trans)-L-phenylalanine | 4950-65-6 Cinnamoyl-(trans)-L-phenylalanine|10986|4950-65-6 https://www.jk-sci.com/products/s57c4x-123036 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f4755a08a327d52515500ae586ebf82b.jpg?v=1776409441 Dexmedetomidine Impurity 36 | 86347-14-0 Dexmedetomidine Impurity 36|C4X-123036|86347-14-0 https://www.jk-sci.com/products/j5311827 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9dc452da4029e4a901349b1b0bfdc85d.jpg?v=1776329785 Boc-cis-1,4-aminocyclohexyl acetic acid | 327156-95-6 Boc-cis-1,4-aminocyclohexyl acetic acid|11827|327156-95-6 https://www.jk-sci.com/products/s57c4x-123040 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/82270c2d2ebc2075e7c50a49b94b1ea3.jpg?v=1776409446 Dexmedetomidine Impurity 40 | 881409-85-4 Dexmedetomidine Impurity 40|C4X-123040|881409-85-4 https://www.jk-sci.com/products/j5312131 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bae27c2810e20ec4c1bfec295fa89083.jpg?v=1776330092 L-2,2-Dimethyl-thiaproline hydrochloride | 213475-47-9 L-2,2-Dimethyl-thiaproline hydrochloride|12131|213475-47-9 https://www.jk-sci.com/products/s57c4x-123054 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_679d5ff4-01fd-4a29-b619-1d636aa31a1b.png?v=1774712742 Dexmedetomidine Impurity 54 Dexmedetomidine Impurity 54|C4X-123054 https://www.jk-sci.com/products/s57c4x-123063 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-123058 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/13f5c96ccd541a06efd23d63de0d9c8c.jpg?v=1776409452 Dexmedetomidine Impurity 58 | 104175-24-8 Dexmedetomidine Impurity 58|C4X-123058|104175-24-8 https://www.jk-sci.com/products/s57c4x-123068 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/24abeb3e0a56f0cd4c70af5da05b7cbb.jpg?v=1776409458 Dexmedetomidine Impurity 68 | 86347-44-6 Dexmedetomidine Impurity 68|C4X-123068|86347-44-6 https://www.jk-sci.com/products/j5312293 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4c0a928d1a8f8a695f210c6e3a3bfe79.jpg?v=1776330199 Z-Leucine methyl ester | 51021-87-5 Z-Leucine methyl ester|12293|51021-87-5 https://www.jk-sci.com/products/j5312497 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/43286786ddaf29446e2b4c0c710267bd.jpg?v=1776330401 Fmoc-L-Lys(Boc)-Rink amide AM resin Fmoc-L-Lys(Boc)-Rink amide AM resin|12497 https://www.jk-sci.com/products/a01948092 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/240960.png?v=1776308324 N,N-Diisopropylaniline, 98% | 4107-98-6 N,N-Diisopropylaniline, 98%|948092|4107-98-6 https://www.jk-sci.com/products/s57c4x-12309 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/205073d3b0e3732731a48d6fb68cff78.jpg?v=1776409465 Dexmedetomidine Impurity 9 | 2240179-63-7 Dexmedetomidine Impurity 9|C4X-12309|2240179-63-7 https://www.jk-sci.com/products/s57c4x-123220 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_506efb30-38fd-4ab4-af40-d73594aebe14.png?v=1774661982 Emtricitabine Thioacetate Emtricitabine Thioacetate|C4X-123220 https://www.jk-sci.com/products/s57c4x-123238 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_9b1a95ca-5e0f-4b61-8cb7-5f2d939da1a1.png?v=1774902926 Emtricitabine Int.Ph Impurity A Emtricitabine Int.Ph Impurity A|C4X-123238 https://www.jk-sci.com/products/j5312840 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/14a7cfb60319930e22ffd17684b849bc.jpg?v=1776330730 L-b-Leucine hydrochloride | 219310-09-5 L-b-Leucine hydrochloride|12840|219310-09-5 https://www.jk-sci.com/products/j5312860 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/72c69982596f2a70f8091ea58d1c66ba.jpg?v=1776330784 Boc-3-methyl-D-phenylalanine | 114873-14-2 Boc-3-methyl-D-phenylalanine|12860|114873-14-2 https://www.jk-sci.com/products/s57c4x-123310 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8fa530af38a404073719b668819ede03.jpg?v=1776409468 Tamoxifen EP Impurity F HCl | 15917-65-4 Tamoxifen EP Impurity F HCl|C4X-123310|15917-65-4 https://www.jk-sci.com/products/s57c4x-12332 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2a6aa8e58c92000c35fefc04d84b66d1.jpg?v=1776409472 Tamoxifen EP Impurity A | 13002-65-8 Tamoxifen EP Impurity A|C4X-12332|13002-65-8 https://www.jk-sci.com/products/j5312950 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/214799c16ea92aeab4740349d42e7d1b.jpg?v=1776330898 2,2,2-Trichloroacetimidic acid benzyl ester | 81927-55-1 2,2,2-Trichloroacetimidic acid benzyl ester|12950|81927-55-1 https://www.jk-sci.com/products/j5312989 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8c70b1650a159a02a73b30ee2ede5156.jpg?v=1776330958 3-(Fmoc-amino)-1-propanol | 157887-82-6 3-(Fmoc-amino)-1-propanol|12989|157887-82-6 https://www.jk-sci.com/products/s57c4x-123410 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/249ab6592369ab58073143350b639a83.jpg?v=1776409475 Candesartan Cilexetil EP Impurity C | 1185255-99-5 Candesartan Cilexetil EP Impurity C|C4X-123410|1185255-99-5 https://www.jk-sci.com/products/j5314098 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ef0c44017127257f085f1f7e0d082ac6.jpg?v=1776331125 Diethylene glycol dimethyl ether | 111-96-6 Diethylene glycol dimethyl ether|14098|111-96-6 https://www.jk-sci.com/products/a01948568 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/10612009b40be530e4b1fd62d8b3771b.jpg?v=1776308378 Titanium(IV) oxide, 99.9%, rutile | 1317-80-2 Titanium(IV) oxide, 99.9%, rutile|948568|1317-80-2 https://www.jk-sci.com/products/j5314253 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/35e812e5a448e62853027f377d2cceb4.jpg?v=1776331193 L-2,4-Diaminobutyric acid hydrochloride | 1482-98-0 L-2,4-Diaminobutyric acid hydrochloride|14253|1482-98-0 https://www.jk-sci.com/products/s57c4x-123414 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0a4b98ac4dad054aaf69ee8222d001d3.jpg?v=1776409484 Candesartan Cilexetil Impurity 14 | 136304-78-4 Candesartan Cilexetil Impurity 14|C4X-123414|136304-78-4 https://www.jk-sci.com/products/j5314318 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/227123fe055a7b56c72db43d3059ff69.jpg?v=1776331311 L-2-Cyclohexylglycine | 14328-51-9 L-2-Cyclohexylglycine|14318|14328-51-9 https://www.jk-sci.com/products/j5314348 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7df48fee188ccb844d11582f9dc22284.jpg?v=1776331355 3-Nitro-D-phenylalanine | 169530-97-6 3-Nitro-D-phenylalanine|14348|169530-97-6 https://www.jk-sci.com/products/j5314406 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6a8ed2a5674011f4d21bcb04b5607d0d.jpg?v=1776331463 Boc-O-benzyl-D-b-homoserine | 718608-08-3 Boc-O-benzyl-D-b-homoserine|14406|718608-08-3 https://www.jk-sci.com/products/j5314441 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/768d2ca85163bc5c1cf82112ea589e09.jpg?v=1776331507 Gly-OBg·TFA | 1423037-49-3 Gly-OBg·TFA|14441|1423037-49-3 https://www.jk-sci.com/products/j5314454 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c22bab898ca181dae927ce82d810a071.jpg?v=1776331541 Boc-Gabapentin | 227626-60-0 Boc-Gabapentin|14454|227626-60-0 https://www.jk-sci.com/products/s57c4x-123424 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bfa7fcebd9079317d362d958abd0ee38.jpg?v=1776409487 Candesartan Cilexetil Impurity 24 | 139481-28-0 Candesartan Cilexetil Impurity 24|C4X-123424|139481-28-0 https://www.jk-sci.com/products/j5314489 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a230660739a4cd10020729a4c30802d9.jpg?v=1776331648 Fmoc-4-cyclohexyl-piperidine-4-carboxylic acid | 882847-21-4 Fmoc-4-cyclohexyl-piperidine-4-carboxylic acid|14489|882847-21-4 https://www.jk-sci.com/products/j5314864 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/08431f2f9f10b91c2fa308a0917b89b4.jpg?v=1776331794 Na-Fmoc-Nin-formyl-L-tryptophan | 152338-45-9 Na-Fmoc-Nin-formyl-L-tryptophan|14864|152338-45-9 https://www.jk-sci.com/products/j5314665 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/328698.png?v=1776331695 Na,Na-Bis-Fmoc-L-cystine bis(tert-butyl ester) | 139592-37-3 Na,Na-Bis-Fmoc-L-cystine bis(tert-butyl ester)|14665|139592-37-3 https://www.jk-sci.com/products/j5315004 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f116eb489d5fa642d7e80b950f83073d.jpg?v=1776331853 Boc-5-amino-2-methoxybenzoic acid | 1075242-43-1 Boc-5-amino-2-methoxybenzoic acid|15004|1075242-43-1 https://www.jk-sci.com/products/j5315038 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8eaf1154e7501957eb937db7ef9dcb79.jpg?v=1776331959 Fmoc-L-glutamic acid a-7-amido-4-methylcoumarin | 957311-37-4 Fmoc-L-glutamic acid a-7-amido-4-methylcoumarin|15038|957311-37-4 https://www.jk-sci.com/products/j5315032 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/14c53f3a5c2236f80b4e9a772d04e5f0.jpg?v=1776331940 3-(Boc-aminomethyl)benzylamine hydrochloride | 914465-97-7 3-(Boc-aminomethyl)benzylamine hydrochloride|15032|914465-97-7 https://www.jk-sci.com/products/s57c4x-123436 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_510e7988-b124-4c1f-aafb-a928c08cf25c.png?v=1774724894 Candesartan Cilexetil Impurity 36 Candesartan Cilexetil Impurity 36|C4X-123436 https://www.jk-sci.com/products/j5315054 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/193405b7fc76107f912c0a4ea49b6909.jpg?v=1776332009 Fmoc-4-amino-1-carboxymethylpiperidine | 221352-82-5 Fmoc-4-amino-1-carboxymethylpiperidine|15054|221352-82-5 https://www.jk-sci.com/products/s57c4x-12346 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0593ff6edf496fffd13fbd1363f35231.jpg?v=1776409494 Candesartan Cilexetil EP Impurity F | 914613-36-8 Candesartan Cilexetil EP Impurity F|C4X-12346|914613-36-8 https://www.jk-sci.com/products/s57c4x-12348 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/120416.png?v=1774666707 Candesartan Cilexetil EP Impurity H | 170791-09-0 Candesartan Cilexetil EP Impurity H|C4X-12348|170791-09-0 https://www.jk-sci.com/products/s57c4x-12351 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/278509.png?v=1774646309 Piracetam EP Impurity D | 53934-76-2 Piracetam EP Impurity D|C4X-12351|53934-76-2 https://www.jk-sci.com/products/s57c4x-123514 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-123519 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_11a859cf-20ca-4830-86cd-1a57bb7b81c0.png?v=1774884547 Piracetam Impurity 19 Piracetam Impurity 19|C4X-123519 https://www.jk-sci.com/products/j5315062 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0926d5b4b3d7ffbfb7c7a03ad4640e2b.jpg?v=1776332034 Fmoc-(R,S)-3-amino-3-(2-naphthyl)propionic acid | 269078-81-1 Fmoc-(R,S)-3-amino-3-(2-naphthyl)propionic acid|15062|269078-81-1 https://www.jk-sci.com/products/j5315069 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/114337e35f037e05bfa2e1bb10ee8cf9.jpg?v=1776332053 Fmoc-(S)3-amino-2-(phenylsulfonylamino)propionic acid | 273399-94-3 Fmoc-(S)3-amino-2-(phenylsulfonylamino)propionic acid|15069|273399-94-3 https://www.jk-sci.com/products/j5315081 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/850a14d5b990224d6aaeced1b78e94a8.jpg?v=1776332089 Fmoc-(1R,2R)-2-aminocyclohexane carboxylic acid | 389057-34-5 Fmoc-(1R,2R)-2-aminocyclohexane carboxylic acid|15081|389057-34-5 https://www.jk-sci.com/products/j5315106 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b850e3f9a7752693d5b0b53c23ce308c.jpg?v=1776332170 Boc-3-iodo-L-phenylalanine | 273221-75-3 Boc-3-iodo-L-phenylalanine|15106|273221-75-3 https://www.jk-sci.com/products/s57c4x-123523 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_43450fdb-6b9f-4ccc-a565-91420deeb60c.png?v=1774668742 Piracetam Impurity 23 Piracetam Impurity 23|C4X-123523 https://www.jk-sci.com/products/j5315111 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/35a7926e20753318e7a46ac028e4b040.jpg?v=1776332186 Fmoc-2-nitro-D-phenylalanine | 478183-70-9 Fmoc-2-nitro-D-phenylalanine|15111|478183-70-9 https://www.jk-sci.com/products/s57c4x-123526 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_08dfcb91-093c-447e-83fc-88e940a1cf96.png?v=1775154926 Piracetam Impurity 26 Piracetam Impurity 26|C4X-123526 https://www.jk-sci.com/products/s57c4x-123531 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-12354 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/98701ad5b60fe978a32db6578aa1cdab.jpg?v=1776409503 Piracetam EP Impurity C | 61516-73-2 Piracetam EP Impurity C|C4X-12354|61516-73-2 https://www.jk-sci.com/products/s57c4x-12356 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/93c1d644099aebb8a7b33bf025d9d0ca.jpg?v=1776409506 Piracetam Impurity 6 | 1096803-44-9 Piracetam Impurity 6|C4X-12356|1096803-44-9 https://www.jk-sci.com/products/s57c4x-1236101 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_365ad3f3-95ba-49c4-a637-197ef0a4a4a3.png?v=1774733138 Isavuconazole Impurity 101 Isavuconazole Impurity 101|C4X-1236101 https://www.jk-sci.com/products/s57c4x-1236109 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-1236104 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cfc4a1b0dd6bfd2a1c48ef4985791b03.jpg?v=1776409512 Isavuconazole Impurity 104 | 2922040-42-2 Isavuconazole Impurity 104|C4X-1236104|2922040-42-2 https://www.jk-sci.com/products/s57c4x-113530 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d492e3c464b28fcff0cd5a816b4b5398.jpg?v=1776408068 Olaparib Impurity 30 | 61260-15-9 Olaparib Impurity 30|C4X-113530|61260-15-9 https://www.jk-sci.com/products/s57c4x-1236113 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_47097d9b-219c-4f04-a6b5-97a8049f1498.png?v=1774882133 Isavuconazole Impurity 113 Isavuconazole Impurity 113|C4X-1236113 https://www.jk-sci.com/products/s57c4x-109525 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/282856_3786e97d-c6a9-4f63-a608-7f4d5570048e.png?v=1774723778 Amlodipine Impurity25 | 3891-07-4 Amlodipine Impurity25|C4X-109525|3891-07-4 https://www.jk-sci.com/products/s57c4x-123614 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_323db670-d6c8-4eab-bfab-2c217be18cb6.png?v=1774646315 Isavuconazole Impurity 14 Isavuconazole Impurity 14|C4X-123614 https://www.jk-sci.com/products/s57c4x-114432 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7138819cef81117e3ea39381409dd3d6.jpg?v=1776408317 Sitagliptin EP Impurity B | 486460-31-5 Sitagliptin EP Impurity B|C4X-114432|486460-31-5 https://www.jk-sci.com/products/s57c4x-11563 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/403553_6b7bfa53-5aa3-4e4b-94f9-58862a711428.png?v=1774671592 Diosmin EP Impurity C | 552-57-8 Diosmin EP Impurity C|C4X-11563|552-57-8 https://www.jk-sci.com/products/j5315118 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/eba37d88de2fce36dae01f7cc840119f.jpg?v=1776332209 Fmoc-2-iodo-L-phenylalanine | 210282-32-9 Fmoc-2-iodo-L-phenylalanine|15118|210282-32-9 https://www.jk-sci.com/products/s57c4x-11626 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/06c7be9c8c6c5a7f77760206a2796e80.jpg?v=1776408576 Febuxostat Impurity 6 | 1239233-87-4 Febuxostat Impurity 6|C4X-11626|1239233-87-4 https://www.jk-sci.com/products/j5315154 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cc159cfa9cc8d935833a934270dbe4b9.jpg?v=1776332284 Cefpirome Sulfate | 98753-19-6 Cefpirome Sulfate|15154|98753-19-6 https://www.jk-sci.com/products/j5315125 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3ed32effa647433517f18bfe225f57b7.jpg?v=1776332233 L-Hydroorotic acid | 5988-19-2 L-Hydroorotic acid|15125|5988-19-2 https://www.jk-sci.com/products/s57c4x-116417 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/313472_8b3c3459-ecf6-4422-abd3-84aedb53ad3a.png?v=1775060494 Oxcarbazepine Impurity 17 | 578-95-0 Oxcarbazepine Impurity 17|C4X-116417|578-95-0 https://www.jk-sci.com/products/a01948772 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1099919.png?v=1776308399 1-Benzylpiperidine-4-carbonitrile, 97% | 62718-31-4 1-Benzylpiperidine-4-carbonitrile, 97%|948772|62718-31-4 https://www.jk-sci.com/products/j5300639 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c386d320959d03ca70d5fa0f1db30743.jpg?v=1776315853 9-Hydroxyxanthene | 90-46-0 9-Hydroxyxanthene|00639|90-46-0 https://www.jk-sci.com/products/s57c4x-116723 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e41a7851f4407af48bd4363792d4d6d0.jpg?v=1776408734 Bedaquiline Impurity 23 | 1032468-55-5 Bedaquiline Impurity 23|C4X-116723|1032468-55-5 https://www.jk-sci.com/products/j5315203 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/aeaf77c93f034c8b90f67d3ccde000ff.jpg?v=1776332330 Boc-4-nitro-L-b-homophenylalanine | 127106-71-2 Boc-4-nitro-L-b-homophenylalanine|15203|127106-71-2 https://www.jk-sci.com/products/j5315217 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/40ea3ebe050f931b59ef7f9a6490bcc3.jpg?v=1776332361 (R)-3-Amino-3-(4-fluorophenyl)propionic acid | 151911-23-8 (R)-3-Amino-3-(4-fluorophenyl)propionic acid|15217|151911-23-8 https://www.jk-sci.com/products/j5315241 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/08425a85934894aee445e372583e6f8a.jpg?v=1776332437 Boc-2-chloro-L-b-homophenylalanine | 218608-95-8 Boc-2-chloro-L-b-homophenylalanine|15241|218608-95-8 https://www.jk-sci.com/products/j5315229 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4c77db49c805cfe9d338d61318700930.jpg?v=1776332397 Boc-(3-benzothienyl)-D-b-homoalanine | 190190-48-8 Boc-(3-benzothienyl)-D-b-homoalanine|15229|190190-48-8 https://www.jk-sci.com/products/s57c4x-117612 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/24eff1d3bc598c67ca26369437f72841.jpg?v=1776408818 Salbutamol EP Impurity G(Hydrochloride) | 24085-08-3 Salbutamol EP Impurity G(Hydrochloride)|C4X-117612|24085-08-3 https://www.jk-sci.com/products/s57c4x-118370 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/052efdb97533f5c8f5a6f098dd60e40a_3c13d179-acbd-4e2a-a7d5-c32a2e69569c.jpg?v=1776408922 Terbutaline EP Impurity D Hydrochloride | 94109-61-2 Terbutaline EP Impurity D Hydrochloride|C4X-118370|94109-61-2 https://www.jk-sci.com/products/s57c4x-11879 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/406476_f29444cc-2f1a-4825-9ada-b2bca7259071.png?v=1775135245 Tamsulosin EP Impurity I | 3259-03-8 Tamsulosin EP Impurity I|C4X-11879|3259-03-8 https://www.jk-sci.com/products/j5312227 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cb3951d3772c94933889e0dd8ddb6aa4.jpg?v=1776330159 Na-Z-Nd-xanthyl-D-glutamine | 327981-02-2 Na-Z-Nd-xanthyl-D-glutamine|12227|327981-02-2 https://www.jk-sci.com/products/s57c4x-118012 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ecb2e16bf94c1c72011d7a76f672f95e.jpg?v=1776408892 Benzyl methanesulfonate | 55791-06-5 Benzyl methanesulfonate|C4X-118012|55791-06-5 https://www.jk-sci.com/products/j5315251 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a07a0d89b4c6a727ecd7761d8a6c3163.jpg?v=1776332464 (S)-Boc-4-(4-pyridyl)-b-Homoala-OH | 219297-13-9 (S)-Boc-4-(4-pyridyl)-b-Homoala-OH|15251|219297-13-9 https://www.jk-sci.com/products/s57c4x-11768 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/51436ba5df2023c6cdb695e7ce86c401.jpg?v=1776408856 Salbutamol EP Impurity Q | 54030-32-9 Salbutamol EP Impurity Q|C4X-11768|54030-32-9 https://www.jk-sci.com/products/j5311662 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e4e4f0e028c58ba3b143e6b7d4ccea2f.jpg?v=1776329548 L-2-Cyclohexylglycine trifluoroacetate | 14328-51-9 L-2-Cyclohexylglycine trifluoroacetate|11662|14328-51-9 https://www.jk-sci.com/products/s57c4x-11697 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d475f6015fe0fce4ac0bc7128a74cee5.jpg?v=1776408792 Rosuvastatin EP Impurity G (Calcium Salt) | 2414245-11-5 Rosuvastatin EP Impurity G (Calcium Salt)|C4X-11697|2414245-11-5 https://www.jk-sci.com/products/j5314922 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3395c59cff43ebc1164236421a1160eb.jpg?v=1776331818 3-(3'-Pyridyl)-D-alanine methyl ester dihydrochloride | 197088-84-9 3-(3'-Pyridyl)-D-alanine methyl ester dihydrochloride|14922|197088-84-9 https://www.jk-sci.com/products/j5314369 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/328d8d5d590b28dfee83764be0149751.jpg?v=1776331403 3-Iodo-D-tyrosine | 25799-58-0 3-Iodo-D-tyrosine|14369|25799-58-0 https://www.jk-sci.com/products/j5314051 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/35464b814d19efd1f339eaf33177ef30.jpg?v=1776331060 3-Amino-1-carboxymethyl-pyridin-2-one·TFA | 1373519-47-1 3-Amino-1-carboxymethyl-pyridin-2-one·TFA|14051|1373519-47-1 https://www.jk-sci.com/products/j5315266 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a03b0f764a1a225394e3e6ae1d7fcf42.jpg?v=1776332512 2-Chloro-D-b-homophenylalanine hydrochloride | 268734-28-7 2-Chloro-D-b-homophenylalanine hydrochloride|15266|268734-28-7 https://www.jk-sci.com/products/s57c4x-11976 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dbb5d954c495d629ddeced5412ed3251.jpg?v=1776409048 Sodium Fusidate EP Impurity F | 1415035-94-7 Sodium Fusidate EP Impurity F|C4X-11976|1415035-94-7 https://www.jk-sci.com/products/j5314446 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3e2c779902ffe6bbc93eb723cd306ae3.jpg?v=1776331520 Boc-1-amino-cyclohexane acetic acid | 187610-56-6 Boc-1-amino-cyclohexane acetic acid|14446|187610-56-6 https://www.jk-sci.com/products/s57c4x-119712 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/05ef96bdd01a7878a50a9c20f65ffadf.jpg?v=1776409034 Sodium Fusidate EP Impurity L | 74048-41-2 Sodium Fusidate EP Impurity L|C4X-119712|74048-41-2 https://www.jk-sci.com/products/j5314290 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5d85e1516db07aaa25d06c0a462ab1eb.jpg?v=1776331254 DL-Glutamic acid g-tert-butyl ester DL-Glutamic acid g-tert-butyl ester|14290 https://www.jk-sci.com/products/j5312757 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8249d9c0f8809997376fde076996fca2.jpg?v=1776330571 L-b-Homoleucine hydrochloride | 96386-92-4 L-b-Homoleucine hydrochloride|12757|96386-92-4 https://www.jk-sci.com/products/j5312904 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1ef8a31a215b41fffe0eb35663773a70.jpg?v=1776330837 Boc-diethanolamine | 103898-11-9 Boc-diethanolamine|12904|103898-11-9 https://www.jk-sci.com/products/s57c4x-119511 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-119015 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/77da255036d60b861ecce5a2eddf58c4.jpg?v=1776408992 Captopril EP Impurity F | 63250-36-2 Captopril EP Impurity F|C4X-119015|63250-36-2 https://www.jk-sci.com/products/j5314500 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8d35dca6d9562c5f62f55d1a601be59b.jpg?v=1776331682 Boc-erythro-b-phenylserine | 93847-77-9 Boc-erythro-b-phenylserine|14500|93847-77-9 https://www.jk-sci.com/products/a01950831 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/409185.png?v=1776308564 (E)-1,2-Bis(4-bromophenyl)ethene, 98% | 18869-30-2 (E)-1,2-Bis(4-bromophenyl)ethene, 98%|950831|18869-30-2 https://www.jk-sci.com/products/s57c4x-119819 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_dc5661ac-f971-4f8c-aadb-6c242de167e7.png?v=1774664664 Eltrombopag Impurity 19 Eltrombopag Impurity 19|C4X-119819 https://www.jk-sci.com/products/s57c4x-119871 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_1113a8d0-3e83-446f-b816-7221c1b98f8b.png?v=1774986207 Eltrombopag Impurity 71 Eltrombopag Impurity 71|C4X-119871 https://www.jk-sci.com/products/s57c4x-119923 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/43950a55ef4a11140f3d3e7098064d82.jpg?v=1776409086 Simvastatin EP Impurity I | 79902-42-4 Simvastatin EP Impurity I|C4X-119923|79902-42-4 https://www.jk-sci.com/products/j5315022 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b7655dd0b3c7010cb10594e9cf93ee64.jpg?v=1776331907 Boc-(3S)-1-pyrrolidine-3-carboxylic acid | 140148-70-5 Boc-(3S)-1-pyrrolidine-3-carboxylic acid|15022|140148-70-5 https://www.jk-sci.com/products/s57c4x-120210 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f8336869cab702324733c613886c3069.jpg?v=1776409122 Melitracen Impurity 10 | 85199-69-5 Melitracen Impurity 10|C4X-120210|85199-69-5 https://www.jk-sci.com/products/s57c4x-12011 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/316261_b5e733c6-5e64-4e40-8387-79579e321e97.png?v=1774727658 Cefotaxime EP Impurity A | 65052-63-3 Cefotaxime EP Impurity A|C4X-12011|65052-63-3 https://www.jk-sci.com/products/j5315046 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/12c46dc35a078ec4cf685194dfe638f3.jpg?v=1776331984 Fmoc-5-amino-2-methoxybenzoic acid | 165073-03-3 Fmoc-5-amino-2-methoxybenzoic acid|15046|165073-03-3 https://www.jk-sci.com/products/s57c4x-120329 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ef15e09622a2c88fae8b35363fc1695f.jpg?v=1776409149 (R,R)-Hydroxy Bupropion | 192374-15-5 (R,R)-Hydroxy Bupropion|C4X-120329|192374-15-5 https://www.jk-sci.com/products/s57c4x-120510 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6f751dd22718f138982b81839bceddf7.jpg?v=1776409164 Tazobactam Impurity 10 | 87579-78-0 Tazobactam Impurity 10|C4X-120510|87579-78-0 https://www.jk-sci.com/products/j5315065 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2ea017f112cb4147cc773e1f012b1bad.jpg?v=1776332040 Fmoc-N-(4-Boc-aminobutyl)glycine | 171856-09-0 Fmoc-N-(4-Boc-aminobutyl)glycine|15065|171856-09-0 https://www.jk-sci.com/products/s57c4x-120812 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dfd1dd0378f2def4ea8b35a7e50658d2.jpg?v=1776409181 Posaconazole Impurity 12(S,S,R,R) | 2243785-97-7 Posaconazole Impurity 12(S,S,R,R)|C4X-120812|2243785-97-7 https://www.jk-sci.com/products/s57c4x-1208174 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-1208201 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_d6e4a56e-e2ef-4169-85cb-5adb3fa1ebf6.png?v=1774667705 Posaconazole Impurity 201 Posaconazole Impurity 201|C4X-1208201 https://www.jk-sci.com/products/s57c4x-120857 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/77010d34395cdb77f24318c1d3203181.jpg?v=1776409246 Posaconazole Impurity 57 | 160709-02-4 Posaconazole Impurity 57|C4X-120857|160709-02-4 https://www.jk-sci.com/products/s57c4x-120843 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/a01951398 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/600935.png?v=1776308609 tert-Butyl (4-(methylamino)butyl)carbamate, 97% | 874831-66-0 tert-Butyl (4-(methylamino)butyl)carbamate, 97%|951398|874831-66-0 https://www.jk-sci.com/products/s57c4x-121021 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f87472b749ce5e49c21e052389435542.jpg?v=1776409269 Cefdinir CP Impurity M | 946573-41-7 Cefdinir CP Impurity M|C4X-121021|946573-41-7 https://www.jk-sci.com/products/j5315084 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/603118570be1316fa1add05b6f9e5343.jpg?v=1776332098 Fmoc-(R,S)-3-amino-N-1-carboxymethyl-2-oxo-5-cyclohexyl-1,4-benzodiazepine | 269078-83-3 Fmoc-(R,S)-3-amino-N-1-carboxymethyl-2-oxo-5-cyclohexyl-1,4-benzodiazepine|15084|269078-83-3 https://www.jk-sci.com/products/s57c4x-121116 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/100f64cd06f355f3c2545573888500b0.jpg?v=1776409290 Paracetamol EP Impurity L | 2514961-29-4 Paracetamol EP Impurity L|C4X-121116|2514961-29-4 https://www.jk-sci.com/products/s57c4x-121126 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/691d7f5390d4669543e7e0739d35bdf5.jpg?v=1776409297 Paracetamol EP Impurity M | 1752-24-5 Paracetamol EP Impurity M|C4X-121126|1752-24-5 https://www.jk-sci.com/products/s57c4x-12114 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/318231_0c17256a-0e33-4caa-b7c5-a348ea8c9a81.png?v=1775062806 Paracetamol EP Impurity C | 3964-54-3 Paracetamol EP Impurity C|C4X-12114|3964-54-3 https://www.jk-sci.com/products/s57c4x-121052 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/514777_ddc4af26-e62b-46db-af82-5fbac7abf210.png?v=1774734342 Cefdinir Impurity 52 | 66338-96-3 Cefdinir Impurity 52|C4X-121052|66338-96-3 https://www.jk-sci.com/products/j5315112 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8bcec8f002a25efedcf211ee66482982.jpg?v=1776332189 Fmoc-3-bromo-D-phenylalanine | 220497-81-4 Fmoc-3-bromo-D-phenylalanine|15112|220497-81-4 https://www.jk-sci.com/products/s57c4x-12122 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/706e4feb44a7a28746c06a82961de55b.jpg?v=1776409312 Ceftazidime EP Impurity B | 97148-38-4 Ceftazidime EP Impurity B|C4X-12122|97148-38-4 https://www.jk-sci.com/products/j5315135 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7095d1c6deae58363acf4f1af1bb4ce6.jpg?v=1776332250 Fmoc-b-cyano-L-alanine | 127273-06-7 Fmoc-b-cyano-L-alanine|15135|127273-06-7 https://www.jk-sci.com/products/s57c4x-12125 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fb3ee21a8a768ca393e697299c96cd42.jpg?v=1776409318 Ceftazidime EP Impurity E | 102772-66-7 Ceftazidime EP Impurity E|C4X-12125|102772-66-7 https://www.jk-sci.com/products/j5315209 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/eea68819b91b3bb0e3c91f3383defe7b.jpg?v=1776332340 (R)-3-Amino-3-(4-chlorophenyl)propionic acid | 131690-61-4 (R)-3-Amino-3-(4-chlorophenyl)propionic acid|15209|131690-61-4 https://www.jk-sci.com/products/s57c4x-12132 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7e60380ac7903ef95f094cb4b105a684.jpg?v=1776409330 Roxatidine Impurity 2 | 97900-87-3 Roxatidine Impurity 2|C4X-12132|97900-87-3 https://www.jk-sci.com/products/s57c4x-121343 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/146235_1e878369-5c2d-45bc-bf17-64f02df13082.png?v=1774721062 Roxatidine Impurity 43 | 100-83-4 Roxatidine Impurity 43|C4X-121343|100-83-4 https://www.jk-sci.com/products/s57c4x-121356 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7fa83c534b92108204ac244e3bbf855e.jpg?v=1776409340 Roxatidine Impurity 56 | 132513-51-0 Roxatidine Impurity 56|C4X-121356|132513-51-0 https://www.jk-sci.com/products/j5315235 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2049c2d24d4c4d35c71d954b285b37b1.jpg?v=1776332417 Boc-(3-pyridyl)-L-b-homoalanine | 208404-16-4 Boc-(3-pyridyl)-L-b-homoalanine|15235|208404-16-4 https://www.jk-sci.com/products/j5315256 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b47c7c24e42e9608c443b1fcdfbcb32a.jpg?v=1776332481 Fmoc-(S)-3-amino-3-(4-bromophenyl)propionic acid | 220497-68-7 Fmoc-(S)-3-amino-3-(4-bromophenyl)propionic acid|15256|220497-68-7 https://www.jk-sci.com/products/s57c4x-12136 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/a01951459 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/115822.png?v=1776308620 2-(4-Benzoyl-3-hydroxyphenoxy)ethyl acrylate, 97% | 16432-81-8 2-(4-Benzoyl-3-hydroxyphenoxy)ethyl acrylate, 97%|951459|16432-81-8 https://www.jk-sci.com/products/s57c4x-12156 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_34403ce5-2c41-47a4-af6f-8cb0c286ddb4.png?v=1775156147 Cefradine EP Impurity D Cefradine EP Impurity D|C4X-12156 https://www.jk-sci.com/products/s57c4x-12204 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/391429_62c1ced8-befd-4bce-85fa-9eb929cee6b2.png?v=1775070256 Metformin EP Impurity D | 108-78-1 Metformin EP Impurity D|C4X-12204|108-78-1 https://www.jk-sci.com/products/s57c4x-122017 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2d85509cce628e1e8036ed8f93f1377a.jpg?v=1776409351 Metformin Impurity 17 | 36897-89-9 Metformin Impurity 17|C4X-122017|36897-89-9 https://www.jk-sci.com/products/j5315276 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/18618aaa543ecf7a926fef43d528171a.jpg?v=1776332540 Boc-3,4-difluoro-D-b-homophenylalanine | 269396-59-0 Boc-3,4-difluoro-D-b-homophenylalanine|15276|269396-59-0 https://www.jk-sci.com/products/s57c4x-12221 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/58618ff73d42852e348eae9630fb193f.jpg?v=1776409358 Calcipotriol EP Impurity A | 126860-83-1 Calcipotriol EP Impurity A|C4X-12221|126860-83-1 https://www.jk-sci.com/products/s57c4x-122234 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d73e0e784c955b3c32a7b34a6185deda.jpg?v=1776409367 Calcipotriol | 112965-21-6 Calcipotriol|C4X-122234|112965-21-6 https://www.jk-sci.com/products/j5315290 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7cd687c34474fa8379ac468b801872de.jpg?v=1776332560 2-Methyl-D-b-homophenylalanine hydrochloride | 269398-79-0 2-Methyl-D-b-homophenylalanine hydrochloride|15290|269398-79-0 https://www.jk-sci.com/products/s57c4x-122326 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_97e6fb44-7290-4f01-bed9-1bb7bca3fb26.png?v=1774891404 Netupitant Impurity 26 Netupitant Impurity 26|C4X-122326 https://www.jk-sci.com/products/j5315322 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/864fe876aa9dd50e68ed49fbc1896227.jpg?v=1776332629 Fmoc-4-cyano-D-b-homophenylalanine | 269726-87-6 Fmoc-4-cyano-D-b-homophenylalanine|15322|269726-87-6 https://www.jk-sci.com/products/j5315311 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/278df4ed0d1756c61df139bb5328b5bd.jpg?v=1776332602 4-Trifluoromethyl-D-b-homophenylalanine hydrochloride | 269726-76-3 4-Trifluoromethyl-D-b-homophenylalanine hydrochloride|15311|269726-76-3 https://www.jk-sci.com/products/s57c4x-12253 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-12269 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c2e1d1e5d437c26386b6007eb1a0a823.jpg?v=1776409409 Nor Doxepin-d3 Hydrochloride | 1331665-54-3 Nor Doxepin-d3 Hydrochloride|C4X-12269|1331665-54-3 https://www.jk-sci.com/products/s57c4x-122426 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/acae1f527ee0056e92a52ce2e0494174.jpg?v=1776409386 Cefadroxil Impurity 26 | 147103-94-4 Cefadroxil Impurity 26|C4X-122426|147103-94-4 https://www.jk-sci.com/products/j5315317 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5cc3c17dbd5a7a7307d235f7c8e1a373.jpg?v=1776332616 3-Cyano-D-b-homophenylalanine hydrochloride | 269726-82-1 3-Cyano-D-b-homophenylalanine hydrochloride|15317|269726-82-1 https://www.jk-sci.com/products/s57c4x-12259 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-12277 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/590945_f553fc6d-6c1c-470d-adc7-d766356e9eba.png?v=1774718926 Oxybuprocaine Hydrochloride | 5987-82-6 Oxybuprocaine Hydrochloride|C4X-12277|5987-82-6 https://www.jk-sci.com/products/j5315327 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/feade1342dbd3eb1a90f6a91c8fee00f.jpg?v=1776332643 (R)-3-Amino-3-phenylpropionic acid | 83649-48-3 (R)-3-Amino-3-phenylpropionic acid|15327|83649-48-3 https://www.jk-sci.com/products/j5315350 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c6209c615fc29967152df2f379f51a5e.jpg?v=1776332695 Fmoc-(1-naphthyl)-L-b-homoalanine | 270063-38-2 Fmoc-(1-naphthyl)-L-b-homoalanine|15350|270063-38-2 https://www.jk-sci.com/products/s57c4x-123015 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f0812105294c7f40900b2ab980f52c7d.jpg?v=1776409424 Dexmedetomidine Impurity 15 | 2250242-52-3 Dexmedetomidine Impurity 15|C4X-123015|2250242-52-3 https://www.jk-sci.com/products/s57c4x-123024 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5315356 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/37b4d3c46abb7a48fe866cfafbed6a31.jpg?v=1776332709 L-b-HomoAla(3-benzothienyl)-OH·HCl | 270063-44-0 L-b-HomoAla(3-benzothienyl)-OH·HCl|15356|270063-44-0 https://www.jk-sci.com/products/s57c4x-123032 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-123425 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/203573_198bbcd2-2165-4322-838a-603044f61606.png?v=1774722920 Candesartan Cilexetil Impurity 25 | 99464-83-2 Candesartan Cilexetil Impurity 25|C4X-123425|99464-83-2 https://www.jk-sci.com/products/j5315384 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f8c6985f7664dc136d3a954286cc872c.jpg?v=1776332773 2-Cyano-L-b-homophenylalanine hydrochloride | 270065-82-2 2-Cyano-L-b-homophenylalanine hydrochloride|15384|270065-82-2 https://www.jk-sci.com/products/s57c4x-123221 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-12306 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cf4860a43df9f2d4715cebf62c403b62.jpg?v=1776409455 Dexmedetomidine Impurity 6 | 91874-85-0 Dexmedetomidine Impurity 6|C4X-12306|91874-85-0 https://www.jk-sci.com/products/j5315425 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/294e35dd25fdabb0e456a2c58a88accf.jpg?v=1776332869 Boc-3-fluoro-L-b-homophenylalanine | 270596-51-5 Boc-3-fluoro-L-b-homophenylalanine|15425|270596-51-5 https://www.jk-sci.com/products/j5315374 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f4a77d8da918a8b10f22023ea03e193d.jpg?v=1776332750 Fmoc-4-iodo-L-b-homophenylalanine | 270065-72-0 Fmoc-4-iodo-L-b-homophenylalanine|15374|270065-72-0 https://www.jk-sci.com/products/s57c4x-123319 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_df698585-c5db-43db-91ec-34b4813744b6.png?v=1774718935 Tamoxifen impurity 19 Tamoxifen impurity 19|C4X-123319 https://www.jk-sci.com/products/s57c4x-123049 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/09be43e19ec2d2b3924ec5f1875d141d.jpg?v=1776409449 Dexmedetomidine Impurity 49 | 2250243-24-2 Dexmedetomidine Impurity 49|C4X-123049|2250243-24-2 https://www.jk-sci.com/products/s57c4x-123413 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/de8549c8257b0e5112bd57cbe70d1071.jpg?v=1776409481 Candesartan Cilexetil EP Impurity E | 914613-35-7 Candesartan Cilexetil EP Impurity E|C4X-123413|914613-35-7 https://www.jk-sci.com/products/s57c4x-12347 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/240626_ab9ba14e-6084-4fbf-a25b-f6f4f8cd22b6.png?v=1774721067 Candesartan Cilexetil EP Impurity G(Candesartan) | 139481-59-7 Candesartan Cilexetil EP Impurity G(Candesartan)|C4X-12347|139481-59-7 https://www.jk-sci.com/products/s57c4x-12308 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_00dda97b-2b82-4262-92fa-d57a6fc573d9.png?v=1774720019 Dexmedetomidine Impurity 8 Dexmedetomidine Impurity 8|C4X-12308 https://www.jk-sci.com/products/j5315448 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2624d6d641e8b2aa5f726ba9a14d191a.jpg?v=1776332927 Boc-(R)-3-amino-3-(4-chlorophenyl)propionic acid | 479064-93-2 Boc-(R)-3-amino-3-(4-chlorophenyl)propionic acid|15448|479064-93-2 https://www.jk-sci.com/products/j5315431 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/344d3f21ea77a2bb8846e1b247eb9b0a.jpg?v=1776332886 (S)-3-Amino-3-(1-naphthyl)propionic acid | 275826-46-5 (S)-3-Amino-3-(1-naphthyl)propionic acid|15431|275826-46-5 https://www.jk-sci.com/products/s57c4x-123520 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5c90d97bbfc34ac935d5bedbc60b0048.jpg?v=1776409500 Piracetam Impurity 20 | 94359-90-7 Piracetam Impurity 20|C4X-123520|94359-90-7 https://www.jk-sci.com/products/j5315470 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8e028fb6a48677b09e4b551059744996.jpg?v=1776332952 (R)-a-(2-Naphthalenylmethyl)proline·HCl | 679796-42-0 (R)-a-(2-Naphthalenylmethyl)proline·HCl|15470|679796-42-0 https://www.jk-sci.com/products/s57c4x-123510 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/a01951566 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/598d789249c94e4edfd7ebe0ba921be8.jpg?v=1776308632 4,5,6,7-Tetrahydrobenzo[c]isoxazole-3-carboxylic acid, 98% | 261350-47-4 4,5,6,7-Tetrahydrobenzo[c]isoxazole-3-carboxylic acid, 98%|951566|261350-47-4 https://www.jk-sci.com/products/s57c4x-123532 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_53ba6153-c552-4351-980e-1085125b7352.png?v=1775153157 Piracetam impurity 32 HCl Piracetam impurity 32 HCl|C4X-123532 https://www.jk-sci.com/products/j5315501 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b076ab2b16ee023e37b3a7cd2721835e.jpg?v=1776333008 Boc-3-chloro-D-b-homophenylalanine | 331763-56-5 Boc-3-chloro-D-b-homophenylalanine|15501|331763-56-5 https://www.jk-sci.com/products/j5315512 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/14b3edc11b122ea1e037636ffca56ee2.jpg?v=1776333039 2-Bromo-L-b-homophenylalanine hydrochloride | 403661-76-7 2-Bromo-L-b-homophenylalanine hydrochloride|15512|403661-76-7 https://www.jk-sci.com/products/j5311955 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1678b0f71ddae393a19649dfbba53aa1.jpg?v=1776329941 Fmoc-cis-1,4-aminocyclohexyl acetic acid | 1217675-84-7 Fmoc-cis-1,4-aminocyclohexyl acetic acid|11955|1217675-84-7 https://www.jk-sci.com/products/j5312846 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c10b1aa3c95a1e3d134644b5bbae7d55.jpg?v=1776330749 Fmoc-2-methyl-D-phenylalanine | 352351-63-4 Fmoc-2-methyl-D-phenylalanine|12846|352351-63-4 https://www.jk-sci.com/products/j5314213 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_6517fc79-3df7-4798-8846-ff3375f7219d.png?v=1776331179 Proteinase K from Tritirachium album [EC 3.4.21.64] | 39450-01-6 Proteinase K from Tritirachium album [EC 3.4.21.64]|14213|39450-01-6 https://www.jk-sci.com/products/j5314430 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5fe3fa077b9624f8776037d10964176d.jpg?v=1776331491 4-Methoxy-2-pentanol | 90971-84-9 4-Methoxy-2-pentanol|14430|90971-84-9 https://www.jk-sci.com/products/s57c4x-1236 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1397fa2679c22f4eb84ce6c64bbff2c9.jpg?v=1776409509 Isavuconazole | 241479-67-4 Isavuconazole|C4X-1236|241479-67-4 https://www.jk-sci.com/products/s57c4x-1236108 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_9dc94f87-cdaf-40be-bf77-868f50061e44.png?v=1774712746 Isavuconazole Impurity 108 Isavuconazole Impurity 108|C4X-1236108 https://www.jk-sci.com/products/s57c4x-1236128 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_eb7bd466-7279-4786-a700-d3b991b1a376.png?v=1774896543 Isavuconazole Impurity 128 Isavuconazole Impurity 128|C4X-1236128 https://www.jk-sci.com/products/s57c4x-123620 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8e49cda8224efcaa79ac36fc584dcdc7.jpg?v=1776409519 Isavuconazole Impurity 20 | 2170932-49-5 Isavuconazole Impurity 20|C4X-123620|2170932-49-5 https://www.jk-sci.com/products/j5315033 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4e8efc299b470d22297b916c62480bb8.jpg?v=1776331943 trans-4-(Boc-amino)-cyclohexane-methanamine hydrochloride | 874823-37-7 trans-4-(Boc-amino)-cyclohexane-methanamine hydrochloride|15033|874823-37-7 https://www.jk-sci.com/products/j5314827 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e417f60b9f7b6e7ac8b07e50379c412a.jpg?v=1776331744 Na-Fmoc-Nw-bis-carbobenzoxy-L-arginine | 207857-35-0 Na-Fmoc-Nw-bis-carbobenzoxy-L-arginine|14827|207857-35-0 https://www.jk-sci.com/products/s57c4x-123624 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/754fb56dd591d005ced63e4f470795d8.jpg?v=1776409522 Isavuconazole Impurity 24 | 1176988-44-5 Isavuconazole Impurity 24|C4X-123624|1176988-44-5 https://www.jk-sci.com/products/j5315071 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/31eb2ebdbd9ace7e9c5bbc90703b22ea.jpg?v=1776332059 4-[2-(Fmoc-amino)ethyloxy]benzoic acid | 882847-29-2 4-[2-(Fmoc-amino)ethyloxy]benzoic acid|15071|882847-29-2 https://www.jk-sci.com/products/s57c4x-123626 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_3ec5d961-0bf0-4a8c-ac03-c29f27d0e651.png?v=1774741232 Isavuconazole Impurity 26 Isavuconazole Impurity 26|C4X-123626 https://www.jk-sci.com/products/j5315123 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/881c08402c655e6860109acf269563aa.jpg?v=1776332227 Fmoc-3-nitro-L-phenylalanine | 206060-42-6 Fmoc-3-nitro-L-phenylalanine|15123|206060-42-6 https://www.jk-sci.com/products/j5315219 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5b6c1c2f1dd833842f5840b70f5d823b.jpg?v=1776332369 (S)-3-Amino-3-(4-fluorophenyl)propionic acid | 151911-33-0 (S)-3-Amino-3-(4-fluorophenyl)propionic acid|15219|151911-33-0 https://www.jk-sci.com/products/s57c4x-123628 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_0849bf18-e1f7-4a29-9256-29a3013a7631.png?v=1774672707 Isavuconazole Impurity 28 Isavuconazole Impurity 28|C4X-123628 https://www.jk-sci.com/products/j5315270 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3bbe9486b4a720f56a974f95101ea466.jpg?v=1776332522 Boc-2,4-dichloro-D-b-homophenylalanine | 269396-53-4 Boc-2,4-dichloro-D-b-homophenylalanine|15270|269396-53-4 https://www.jk-sci.com/products/s57c4x-12363 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3194e39c4b239bcf37b89d5f9b2d8b39.jpg?v=1776409529 Isavuconazole Impurity 3 | 2734004-61-4 Isavuconazole Impurity 3|C4X-12363|2734004-61-4 https://www.jk-sci.com/products/s57c4x-123642 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_5e388794-576a-4f2f-9340-18d54bfc26b9.png?v=1774966898 Isavuconazole Impurity 42 Chloride DiHCl (Mixture of Diastereomers) Isavuconazole Impurity 42 Chloride DiHCl (Mixture of Diastereomers)|C4X-123642 https://www.jk-sci.com/products/s57c4x-123632 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ba516de49cb8cb56363aa30d3b2e129c.jpg?v=1776409532 Isavuconazole Impurity 32 | 338990-31-1 Isavuconazole Impurity 32|C4X-123632|338990-31-1 https://www.jk-sci.com/products/s57c4x-123637 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/a01952177 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/446800.png?v=1776308685 1-Bromo-4-nonylbenzene, 98% | 51554-94-0 1-Bromo-4-nonylbenzene, 98%|952177|51554-94-0 https://www.jk-sci.com/products/s57c4x-123655 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/87373aaf7531b66f3724ec2d7bb2d30d.jpg?v=1776409538 Isavuconazonium Sulfate | 946075-13-4 Isavuconazonium Sulfate|C4X-123655|946075-13-4 https://www.jk-sci.com/products/a01952855 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/286660.png?v=1776308753 5-Bromo-2-methylindole, 97% | 1075-34-9 5-Bromo-2-methylindole, 97%|952855|1075-34-9 https://www.jk-sci.com/products/s57c4x-123659 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_082f44ec-3d14-44ce-a61e-51d478bf6d02.png?v=1774723851 Isavuconazole Impurity 59 Isavuconazole Impurity 59|C4X-123659 https://www.jk-sci.com/products/s57c4x-123664 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_34d351e4-0f86-4cb9-9e05-7c7a18f3f9f2.png?v=1774969434 Isavuconazole Impurity 64 xTrifluoroacetate（Easy to absorb moisture） Isavuconazole Impurity 64 xTrifluoroacetate（Easy to absorb moisture）|C4X-123664 https://www.jk-sci.com/products/s57c4x-123673 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_d986b650-71f9-41b7-a42b-032a2849013a.png?v=1775071518 Isavuconazole Impurity 73 Isavuconazole Impurity 73|C4X-123673 https://www.jk-sci.com/products/j5315308 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5ead4f91dcf9362bdee920ca96750010.jpg?v=1776332599 3-Trifluoromethyl-D-b-homophenylalanine hydrochloride | 269726-73-0 3-Trifluoromethyl-D-b-homophenylalanine hydrochloride|15308|269726-73-0 https://www.jk-sci.com/products/s57c4x-123699 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_150c49cc-2ff2-4184-8dfe-c19e42a8d761.png?v=1774725849 Isavuconazole Impurity 99 Iodization HCl Isavuconazole Impurity 99 Iodization HCl|C4X-123699 https://www.jk-sci.com/products/s57c4x-123697 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_81465e8c-e1d8-4c5b-ba8c-9a39f44701cf.png?v=1774642306 Isavuconazole impurity 97 Isavuconazole impurity 97|C4X-123697 https://www.jk-sci.com/products/j5315319 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dfc238f38590ddcc232d10dade5f7ebc.jpg?v=1776332619 Fmoc-3-cyano-D-b-homophenylalanine | 269726-84-3 Fmoc-3-cyano-D-b-homophenylalanine|15319|269726-84-3 https://www.jk-sci.com/products/s57c4x-123686 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5315338 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8790f3c57bc1b7da08f7b775f759d59a.jpg?v=1776332675 2-Methyl-L-b-homophenylalanine hydrochloride | 270062-89-0 2-Methyl-L-b-homophenylalanine hydrochloride|15338|270062-89-0 https://www.jk-sci.com/products/j5315373 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4e8c19a35d35f16418daeebc8ec37a99.jpg?v=1776332747 Boc-4-iodo-L-b-homophenylalanine | 270065-71-9 Boc-4-iodo-L-b-homophenylalanine|15373|270065-71-9 https://www.jk-sci.com/products/s57c4x-123715 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5e8d91b60d2d0778c8a11c225c608b2e.jpg?v=1776409554 Picosulfate Impurity 15 | 16985-07-2 Picosulfate Impurity 15|C4X-123715|16985-07-2 https://www.jk-sci.com/products/s57c4x-123710 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dc6e781b6bc22e420b9ce282081f0821.jpg?v=1776409547 Picosulfate Impurity 10 | 33077-70-2 Picosulfate Impurity 10|C4X-123710|33077-70-2 https://www.jk-sci.com/products/s57c4x-12372 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/240df0f717fbf2c00f7c8d442753227d_73aaaa2f-19c2-4aee-b464-b6937c2dcc30.jpg?v=1776409560 Sodium Picosulfate EP Impurity B | 603-41-8 Sodium Picosulfate EP Impurity B|C4X-12372|603-41-8 https://www.jk-sci.com/products/s57c4x-12374 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_bf371ea9-d5b5-48bf-8097-38c29f7a99d8.png?v=1774896551 Picosulfate Impurity 4 Picosulfate Impurity 4|C4X-12374 https://www.jk-sci.com/products/j5315387 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3a9b1994595d89893f32c6471304f944.jpg?v=1776332777 3-Cyano-L-b-homophenylalanine hydrochloride | 270065-85-5 3-Cyano-L-b-homophenylalanine hydrochloride|15387|270065-85-5 https://www.jk-sci.com/products/j5315440 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0ddb690ece0e1487f9602b81d0d97c12.jpg?v=1776332912 Pentafluoro-D-phenylalanine | 40332-58-9 Pentafluoro-D-phenylalanine|15440|40332-58-9 https://www.jk-sci.com/products/j5315540 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/13683156062f022ff5139f52c573b388.jpg?v=1776333092 Boc-(S)-3-amino-3-(2-fluorophenyl)propionic acid | 500770-71-8 Boc-(S)-3-amino-3-(2-fluorophenyl)propionic acid|15540|500770-71-8 https://www.jk-sci.com/products/j5315487 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0a6dff0987c8ff2142f0caad558a6089.jpg?v=1776332978 (+)-(1S,3R)-3-Amino-cyclopentane carboxylic acid | 71830-07-4 (+)-(1S,3R)-3-Amino-cyclopentane carboxylic acid|15487|71830-07-4 https://www.jk-sci.com/products/a01953568 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/576109_128421b8-345a-4b75-9163-1ca638d83c6e.png?v=1776308814 4-Acetylbenzonitrile, 97% | 1443-80-7 4-Acetylbenzonitrile, 97%|953568|1443-80-7 https://www.jk-sci.com/products/s57c4x-12381 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2327397a98dd635f9cb17900c24be070.jpg?v=1776409567 Zopiclone EP Impurity C | 148891-53-6 Zopiclone EP Impurity C|C4X-12381|148891-53-6 https://www.jk-sci.com/products/j5315544 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f3e4601691b342a250a9675506ff5bda.jpg?v=1776333098 (S)-3-Amino-3-(3-fluorophenyl)propionic acid | 723284-79-5 (S)-3-Amino-3-(3-fluorophenyl)propionic acid|15544|723284-79-5 https://www.jk-sci.com/products/j5315561 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fb3c067908225641fff57a0be741a885.jpg?v=1776333127 Boc-(R)-3-amino-3-(2-bromophenyl)propionic acid | 500789-07-1 Boc-(R)-3-amino-3-(2-bromophenyl)propionic acid|15561|500789-07-1 https://www.jk-sci.com/products/s57c4x-123816 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/a01953749 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/143623.png?v=1776308820 2,6-Dimethoxybenzaldehyde, 98% | 3392-97-0 2,6-Dimethoxybenzaldehyde, 98%|953749|3392-97-0 https://www.jk-sci.com/products/s57c4x-12384 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ae2b8236f9d1dd213ed190be5da8d658.jpg?v=1776409580 Zopiclone EP Impurity B | 43200-81-3 Zopiclone EP Impurity B|C4X-12384|43200-81-3 https://www.jk-sci.com/products/j5315573 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/da071f8542cffe980e89bdc7da8be3d9.jpg?v=1776333151 Boc-(R)-3-amino-3-(2-trifluoromethylphenyl)propionic acid | 501015-17-4 Boc-(R)-3-amino-3-(2-trifluoromethylphenyl)propionic acid|15573|501015-17-4 https://www.jk-sci.com/products/j5315590 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fc683daa4313f24e8f43585e3f39a606.jpg?v=1776333192 (S)-3-Amino-3-(3-cyanophenyl)propionic acid | 791778-00-2 (S)-3-Amino-3-(3-cyanophenyl)propionic acid|15590|791778-00-2 https://www.jk-sci.com/products/j5315570 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b3ae2a80f952f324a282b5b54dd0b510.jpg?v=1776333146 (R)-3-Amino-3-(4-bromophenyl)propionic acid | 479074-63-0 (R)-3-Amino-3-(4-bromophenyl)propionic acid|15570|479074-63-0 https://www.jk-sci.com/products/j5315613 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ed622181a58b4568a115581b2c9166e4.jpg?v=1776333235 Boc-(R)-3-amino-3-(4-nitrophenyl)propionic acid | 500770-85-4 Boc-(R)-3-amino-3-(4-nitrophenyl)propionic acid|15613|500770-85-4 https://www.jk-sci.com/products/j5315617 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/96e48975c0bc28f2e9a141c576740de7.jpg?v=1776333241 (R)-3-Amino-3-(2-methylphenyl)propionic acid | 752198-38-2 (R)-3-Amino-3-(2-methylphenyl)propionic acid|15617|752198-38-2 https://www.jk-sci.com/products/s57c4x-12391 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/329945.png?v=1774969439 Anastrozole EP Impurity H | 120511-72-0 Anastrozole EP Impurity H|C4X-12391|120511-72-0 https://www.jk-sci.com/products/j5315626 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/540b4be14f6ed14b40db7ac47fc5c00a.jpg?v=1776333257 Boc-(S)-3-amino-3-(3-methylphenyl)propionic acid | 499995-75-4 Boc-(S)-3-amino-3-(3-methylphenyl)propionic acid|15626|499995-75-4 https://www.jk-sci.com/products/s57c4x-123912 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-123915 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ae37be31bdd58d41c9b490dccc066f79.jpg?v=1776409589 Anastrozole Impurity 15 | 2469244-33-3 Anastrozole Impurity 15|C4X-123915|2469244-33-3 https://www.jk-sci.com/products/s57c4x-123917 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/eccba31391167f26eeec96e7589c3095.jpg?v=1776409595 Anastrozole Diacid | 1338800-81-9 Anastrozole Diacid|C4X-123917|1338800-81-9 https://www.jk-sci.com/products/j5315639 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d43e2d2d8c5e05335a984d74a8659ade.jpg?v=1776333284 Boc-(R)-3-amino-3-(3-methoxyphenyl)propionic acid | 500788-86-3 Boc-(R)-3-amino-3-(3-methoxyphenyl)propionic acid|15639|500788-86-3 https://www.jk-sci.com/products/s57c4x-12394 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5315647 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3dcc66e067a466a590abac3cf5dfed38.jpg?v=1776333309 (R)-3-Amino-3-(2-hydroxyphenyl)propionic acid | 708973-31-3 (R)-3-Amino-3-(2-hydroxyphenyl)propionic acid|15647|708973-31-3 https://www.jk-sci.com/products/s57c4x-12397 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e29090523148f47ff12273bc71a91cf9.jpg?v=1776409601 Anastrozole EP Impurity G | 120511-92-4 Anastrozole EP Impurity G|C4X-12397|120511-92-4 https://www.jk-sci.com/products/j5315659 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/295781a3e9a57008e8ecb49afcc73d56.jpg?v=1776333326 Boc-(S)-3-amino-3-(4-hydroxyphenyl)propionic acid | 499995-80-1 Boc-(S)-3-amino-3-(4-hydroxyphenyl)propionic acid|15659|499995-80-1 https://www.jk-sci.com/products/j5315675 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f5f780e5e0a4a0c8658af4721c2f1674.jpg?v=1776333354 (S)-3-Amino-3-(2,3-dimethoxyphenyl)propionic acid | 752198-18-8 (S)-3-Amino-3-(2,3-dimethoxyphenyl)propionic acid|15675|752198-18-8 https://www.jk-sci.com/products/s57c4x-1240 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/53431c6e810de240873bea4e544cd165.jpg?v=1776409607 Ziprasidone Hydrochloride Monohydrate | 138982-67-9 Ziprasidone Hydrochloride Monohydrate|C4X-1240|138982-67-9 https://www.jk-sci.com/products/s57c4x-124016 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d3438d7e999895b32de5633781febd11.jpg?v=1776409617 Ziprasidone HCl | 122883-93-6 Ziprasidone HCl|C4X-124016|122883-93-6 https://www.jk-sci.com/products/s57c4x-124011 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5315690 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cba4fb8ac2e2430dfe2b077a125dd693.jpg?v=1776333363 Fmoc-(R)-3-amino-3-(3,5-dimethoxyphenyl)propionic acid | 511272-41-6 Fmoc-(R)-3-amino-3-(3,5-dimethoxyphenyl)propionic acid|15690|511272-41-6 https://www.jk-sci.com/products/s57c4x-124026 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/543996.png?v=1774721076 Ziprasidone Impurity 26 | 118307-04-3 Ziprasidone Impurity 26|C4X-124026|118307-04-3 https://www.jk-sci.com/products/j5315701 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7e617ce222253c2ebf3c768ce8f4133a.jpg?v=1776333389 Boc-(R)-3-amino-3-(3-thienyl)propionic acid | 500788-99-8 Boc-(R)-3-amino-3-(3-thienyl)propionic acid|15701|500788-99-8 https://www.jk-sci.com/products/j5315708 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3d9629cb6fcc768ce4f506bb170d856c.jpg?v=1776333398 Fmoc-(R)-3-amino-3-(1-naphthyl)propionic acid | 511272-47-2 Fmoc-(R)-3-amino-3-(1-naphthyl)propionic acid|15708|511272-47-2 https://www.jk-sci.com/products/s57c4x-12404 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/613786.png?v=1774880373 Ziprasidone EP Impurity A | 87691-87-0 Ziprasidone EP Impurity A|C4X-12404|87691-87-0 https://www.jk-sci.com/products/j5315712 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ae0dea7619c375aad3bc0fe60cc9840c.jpg?v=1776333410 Boc-(R)-3-amino-3-(2-naphthyl)propionic acid | 500789-01-5 Boc-(R)-3-amino-3-(2-naphthyl)propionic acid|15712|500789-01-5 https://www.jk-sci.com/products/j5315717 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e7880d25a65ca13a4f8f5592c253893c.jpg?v=1776333423 Boc-(R)-3-amino-3-(2-furyl)propionic acid | 1217725-33-1 Boc-(R)-3-amino-3-(2-furyl)propionic acid|15717|1217725-33-1 https://www.jk-sci.com/products/s57c4x-12407 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e09fda43c9193b72010eee9b08b8d691.jpg?v=1776409627 Ziprasidone EP Impurity D | 1303996-68-0 Ziprasidone EP Impurity D|C4X-12407|1303996-68-0 https://www.jk-sci.com/products/j5315734 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/78c119a71cca74b7060bf623a842f7dc.jpg?v=1776333461 L-2-Amino-5-phenylpentanoic acid | 62777-25-7 L-2-Amino-5-phenylpentanoic acid|15734|62777-25-7 https://www.jk-sci.com/products/j5315833 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/49322e5baff12c36a75d53188e8fabe0.jpg?v=1776333527 (R)-a-(3-Phenylpropyl)proline·HCl | 1217792-29-4 (R)-a-(3-Phenylpropyl)proline·HCl|15833|1217792-29-4 https://www.jk-sci.com/products/j5315864 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/5189a1836c58a6d8b1bff15e8f5b7ab4.jpg?v=1776333539 Boc-(R)-a-(3-thiophenylmethyl)proline | 959578-37-1 Boc-(R)-a-(3-thiophenylmethyl)proline|15864|959578-37-1 https://www.jk-sci.com/products/s57c4x-12409 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/543519.png?v=1775071528 Ziprasidone Impurity 9 | 118289-55-7 Ziprasidone Impurity 9|C4X-12409|118289-55-7 https://www.jk-sci.com/products/s57c4x-124124 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/154680_ddc881d7-8d6d-4331-88ba-9f28dae6bfc4.png?v=1775062819 Minodronic Impurity 24 | 2960-66-9 Minodronic Impurity 24|C4X-124124|2960-66-9 https://www.jk-sci.com/products/s57c4x-12421 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/cab8843bdc02a71b40b1168f6948d6a5.jpg?v=1776409637 Rocuronium EP Impurity A | 119302-24-8 Rocuronium EP Impurity A|C4X-12421|119302-24-8 https://www.jk-sci.com/products/s57c4x-124215 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ef1bf7484ffac1c1b9bbb42ffa6005a3.jpg?v=1776409646 Rocuronium Impurity 15 | 10429-07-9 Rocuronium Impurity 15|C4X-124215|10429-07-9 https://www.jk-sci.com/products/j5315883 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/96ed2fe17ece898052ea38629ff00b43.jpg?v=1776333554 (R)-a-Allylproline·HCl | 177206-69-8 (R)-a-Allylproline·HCl|15883|177206-69-8 https://www.jk-sci.com/products/s57c4x-124218 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_2f05fb36-a19d-410e-9c30-159c852fd03b.png?v=1774741236 Rocuronium Impurity 18 Rocuronium Impurity 18|C4X-124218 https://www.jk-sci.com/products/s57c4x-124224 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a7d445a8c4471167bcd4c850ca5ab5b5.jpg?v=1776409652 Rocuronium Bromide Impurity 24 | 119302-19-1 Rocuronium Bromide Impurity 24|C4X-124224|119302-19-1 https://www.jk-sci.com/products/j5315902 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2a4e571965f4ebc2b7867a99e6b8c57d.jpg?v=1776333587 Boc-(R)-g-(3-chlorobenzyl)-L-proline | 959576-36-4 Boc-(R)-g-(3-chlorobenzyl)-L-proline|15902|959576-36-4 https://www.jk-sci.com/products/s57c4x-12424 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dfaa7fdd1628ffc1f9cbb1753649ec1d.jpg?v=1776409660 Rocuronium EP Impurity D | 1190105-63-5 Rocuronium EP Impurity D|C4X-12424|1190105-63-5 https://www.jk-sci.com/products/j5315913 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/dd3ae108621f1c18cb9633ed6fa9ac79.jpg?v=1776333611 (R)-g-(3-Methylbenzyl)-L-proline·HCl | 1049734-52-2 (R)-g-(3-Methylbenzyl)-L-proline·HCl|15913|1049734-52-2 https://www.jk-sci.com/products/j5309702 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/157fc21084f13049a2ad1ecc8990b590.jpg?v=1776328899 Phenylacetyl glycine | 500-98-1 Phenylacetyl glycine|09702|500-98-1 https://www.jk-sci.com/products/s57c4x-12425 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6c1aa2f80a069ecaf05eaf7f25c3ce30.jpg?v=1776409666 Rocuronium EP Impurity E | 1190105-65-7 Rocuronium EP Impurity E|C4X-12425|1190105-65-7 https://www.jk-sci.com/products/s57c4x-12428 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/78fbf9c35d598607e66a9f50263d6ef1.jpg?v=1776409669 Rocuronium EP Impurity H | 1190105-67-9 Rocuronium EP Impurity H|C4X-12428|1190105-67-9 https://www.jk-sci.com/products/s57c4x-124335 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6ee58e3383f8dabbeb06acf6ac3f2603.jpg?v=1776409675 Efinaconazole Impurity 35 | 127001-03-0 Efinaconazole Impurity 35|C4X-124335|127001-03-0 https://www.jk-sci.com/products/j5312971 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/95a26ad03888804fbcc90a519dd8f6a1.jpg?v=1776330925 4-Hydroxy-3-methoxybenzyl alcohol | 498-00-0 4-Hydroxy-3-methoxybenzyl alcohol|12971|498-00-0 https://www.jk-sci.com/products/s57c4x-124414 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/460615.png?v=1774718946 Quetiapine EP Impurity G | 3159-07-7 Quetiapine EP Impurity G|C4X-124414|3159-07-7 https://www.jk-sci.com/products/s57c4x-124412 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/8816d20107d759143e328be724e25ab0.jpg?v=1776409681 Quetiapine EP Impurity F | 848814-27-7 Quetiapine EP Impurity F|C4X-124412|848814-27-7 https://www.jk-sci.com/products/s57c4x-124423 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/b09b2252a983cd549d906923b5e6ab52.jpg?v=1776409696 Quetiapine EP Impurity E | 1371638-05-9 Quetiapine EP Impurity E|C4X-124423|1371638-05-9 https://www.jk-sci.com/products/s57c4x-124416 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1103ad622a4e4bdc08d04ec55863ee66.jpg?v=1776409687 Quetiapine EP Impurity T | 5747-46-6 Quetiapine EP Impurity T|C4X-124416|5747-46-6 https://www.jk-sci.com/products/s57c4x-12442 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-124425 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/71f3ab64210a19aa0d1fdda66851ea31.jpg?v=1776409702 Quetiapine EP Impurity O | 844639-06-1 Quetiapine EP Impurity O|C4X-124425|844639-06-1 https://www.jk-sci.com/products/s57c4x-124432 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/82a4bd3357e81d587fc74f45d76ac317.jpg?v=1776409704 Quetiapine Impurity 32 | 13745-86-3 Quetiapine Impurity 32|C4X-124432|13745-86-3 https://www.jk-sci.com/products/j5314487 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/bd256f901815694882cd9b82f6dbbd3e.jpg?v=1776331642 (R)-Fmoc-3-carboxythiomorpholine | 959572-96-4 (R)-Fmoc-3-carboxythiomorpholine|14487|959572-96-4 https://www.jk-sci.com/products/s57c4x-124454 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/232633.png?v=1774736452 Quetiapine Impurity 54 | 4171-83-9 Quetiapine Impurity 54|C4X-124454|4171-83-9 https://www.jk-sci.com/products/j5315059 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/21b5dc43b4d0e5984cb31e7c26adab72.jpg?v=1776332025 Fmoc-(R,S)-3-amino-3-phenylpropionic acid | 180181-93-5 Fmoc-(R,S)-3-amino-3-phenylpropionic acid|15059|180181-93-5 https://www.jk-sci.com/products/s57c4x-124441 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/4db6714114f9a5cceadc96caf51e3d98.jpg?v=1776409709 Quetiapine EP Impurity P | 1011758-03-4 Quetiapine EP Impurity P|C4X-124441|1011758-03-4 https://www.jk-sci.com/products/s57c4x-124439 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_2d069029-fbc8-4704-b3ee-0ebafdc945ec.png?v=1774984676 Quetiapine EP Impurity N triHCl Quetiapine EP Impurity N triHCl|C4X-124439 https://www.jk-sci.com/products/j5315167 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f99b242d4fcaed973db129bffada6f07.jpg?v=1776332310 Mezlocillin Sodium | 59798-30-0 Mezlocillin Sodium|15167|59798-30-0 https://www.jk-sci.com/products/j5315279 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2f169a0cb4650a3088ab3cdd4ee87a3f.jpg?v=1776332546 Boc-(3-pyridyl)-D-b-homoalanine | 269396-65-8 Boc-(3-pyridyl)-D-b-homoalanine|15279|269396-65-8 https://www.jk-sci.com/products/j5315323 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f02d1d0a67ed0e702fdf1323acaf9772.jpg?v=1776332633 (2-Thienyl)-D-b-homoalanine hydrochloride | 269726-88-7 (2-Thienyl)-D-b-homoalanine hydrochloride|15323|269726-88-7 https://www.jk-sci.com/products/j5315375 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/388f44e87bac3c1d95801fd64e03d175.jpg?v=1776332753 2-Trifluoromethyl-L-b-homophenylalanine hydrochloride | 270065-73-1 2-Trifluoromethyl-L-b-homophenylalanine hydrochloride|15375|270065-73-1 https://www.jk-sci.com/products/s57c4x-124456 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/473694_da7203a6-09a9-462d-ac2e-e65a1a0fb3ef.png?v=1774986230 Quetiapine Impurity 56 | 1015-89-0 Quetiapine Impurity 56|C4X-124456|1015-89-0 https://www.jk-sci.com/products/s57c4x-124459 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_6558743e-a453-4288-9499-135c1060ea32.png?v=1775078690 Quetiapine Impurity 59 Quetiapine Impurity 59|C4X-124459 https://www.jk-sci.com/products/s57c4x-1245 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/fe66f524066437bbb5b65b73501295f7.jpg?v=1776409727 Cefuroxime | 56238-63-2 Cefuroxime|C4X-1245|56238-63-2 https://www.jk-sci.com/products/s57c4x-124460 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/eade9a1e2bd1668093e9cdf4b5d0552d.jpg?v=1776409718 Quetiapine Impurity 60 | 2204369-14-0 Quetiapine Impurity 60|C4X-124460|2204369-14-0 https://www.jk-sci.com/products/j5315462 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/d03026be9e224422aa14f089342e7e8a.jpg?v=1776332949 (R)-a-(3-Chlorobenzyl)proline·HCl | 637020-80-5 (R)-a-(3-Chlorobenzyl)proline·HCl|15462|637020-80-5 https://www.jk-sci.com/products/s57c4x-124464 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-124472 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_d6a7026a-8d64-4988-8a6e-f95374434347.png?v=1774670692 Quetiapine impurity 72 Quetiapine impurity 72|C4X-124472 https://www.jk-sci.com/products/s57c4x-124468 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_3919fca6-edc8-4d1e-a10c-01cfd6437117.png?v=1774725852 Quetiapine Impurity 68 Quetiapine Impurity 68|C4X-124468 https://www.jk-sci.com/products/j5315542 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/ea0fa6ff9b76226a2d07988b9c388a2c.jpg?v=1776333095 Fmoc-(S)-3-amino-3-(2-fluorophenyl)propionic acid | 507472-13-1 Fmoc-(S)-3-amino-3-(2-fluorophenyl)propionic acid|15542|507472-13-1 https://www.jk-sci.com/products/a01954849 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/337495.png?v=1776308935 2-(4-Chlorophenoxy)-2-methylpropionic acid, 98% | 882-09-7 2-(4-Chlorophenoxy)-2-methylpropionic acid, 98%|954849|882-09-7 https://www.jk-sci.com/products/s57c4x-12453 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3b0e8a95569a275ca12569d5db04ddff.jpg?v=1776409737 Cefuroxime Sodium EP Impurity C | 69822-88-4 Cefuroxime Sodium EP Impurity C|C4X-12453|69822-88-4 https://www.jk-sci.com/products/a01954984 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/273934.png?v=1776308955 N-Boc-1,6-diaminohexane, 97% | 51857-17-1 N-Boc-1,6-diaminohexane, 97%|954984|51857-17-1 https://www.jk-sci.com/products/j5315562 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0d4e2c8321fbf9b0c8f8ca0cb7fcd791.jpg?v=1776333130 Boc-(S)-3-amino-3-(2-bromophenyl)propionic acid | 500770-75-2 Boc-(S)-3-amino-3-(2-bromophenyl)propionic acid|15562|500770-75-2 https://www.jk-sci.com/products/s57c4x-12454 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/c970539654fd1b7ee7c3245c24f167f7.jpg?v=1776409743 Cefuroxime Sodium EP Impurity D | 76598-06-6 Cefuroxime Sodium EP Impurity D|C4X-12454|76598-06-6 https://www.jk-sci.com/products/s57c4x-12456 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/871cb9710e3bf52344d5649fcbd93b75.jpg?v=1776409751 Cefuroxime Sodium EP Impurity F | 97170-19-9 Cefuroxime Sodium EP Impurity F|C4X-12456|97170-19-9 https://www.jk-sci.com/products/s57c4x-12458 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e3be5d1a4550883b28d19590c34281fb.jpg?v=1776409757 Cefuroxime Sodium EP Impurity H(Cefuroxime Axetil EP Impurity E) | 947723-87-7 Cefuroxime Sodium EP Impurity H(Cefuroxime Axetil EP Impurity E)|C4X-12458|947723-87-7 https://www.jk-sci.com/products/j5315579 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/7fdf1d25075b79f2ceff76f0c42981ab.jpg?v=1776333164 Boc-(R)-3-amino-3-(3-trifluoromethylphenyl)propionic acid | 501015-18-5 Boc-(R)-3-amino-3-(3-trifluoromethylphenyl)propionic acid|15579|501015-18-5 https://www.jk-sci.com/products/j5315636 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9c6743f4528afea26d1ad2a93b9d3d48.jpg?v=1776333275 Fmoc-(S)-3-amino-3-(2-methoxyphenyl)propionic acid | 501015-28-7 Fmoc-(S)-3-amino-3-(2-methoxyphenyl)propionic acid|15636|501015-28-7 https://www.jk-sci.com/products/j5315614 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/0dba3379f9d16e5198fcf3003b5ea671.jpg?v=1776333238 Boc-(S)-3-amino-3-(4-nitrophenyl)propionic acid | 499995-73-2 Boc-(S)-3-amino-3-(4-nitrophenyl)propionic acid|15614|499995-73-2 https://www.jk-sci.com/products/s57c4x-12462 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/06463e9ccb88f743ed596d1ae39ff477.jpg?v=1776409760 Ambrisentan Impurity 2 | 1639429-81-4 Ambrisentan Impurity 2|C4X-12462|1639429-81-4 https://www.jk-sci.com/products/j5315686 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/51b394fcc933ff87328cfbdb50c2720e.jpg?v=1776333360 (R)-3-Amino-3-(3,5-dimethoxyphenyl)propionic acid | 744193-65-5 (R)-3-Amino-3-(3,5-dimethoxyphenyl)propionic acid|15686|744193-65-5 https://www.jk-sci.com/products/s57c4x-12466 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/a1afaa763ecab9b1c13ce32a0103fb0d.jpg?v=1776409766 Ambrisentan Impurity 6 | 1007358-76-0 Ambrisentan Impurity 6|C4X-12466|1007358-76-0 https://www.jk-sci.com/products/j5315650 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/21b1c75cb3a8fa6ba22970c144639d69.jpg?v=1776333314 Boc-(S)-3-amino-3-(2-hydroxyphenyl)propionic acid | 499995-78-7 Boc-(S)-3-amino-3-(2-hydroxyphenyl)propionic acid|15650|499995-78-7 https://www.jk-sci.com/products/j5315705 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e95bca7b08597afa5fd6973bd521f978.jpg?v=1776333395 (R)-3-Amino-3-(1-naphthyl)propionic acid | 775280-91-6 (R)-3-Amino-3-(1-naphthyl)propionic acid|15705|775280-91-6 https://www.jk-sci.com/products/s57c4x-124711 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1142165.png?v=1775143110 Bisoprolol EP Impurity K | 864544-37-6 Bisoprolol EP Impurity K|C4X-124711|864544-37-6 https://www.jk-sci.com/products/j5315866 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/1d6c5d8593f865ad5693139081e7bd41.jpg?v=1776333544 Boc-(S)-a-(3-thiophenylmethyl)proline | 1217714-91-4 Boc-(S)-a-(3-thiophenylmethyl)proline|15866|1217714-91-4 https://www.jk-sci.com/products/j5315715 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/63faa5769452a7d88eaaba1f1648fb91.jpg?v=1776333419 Fmoc-(S)-3-amino-3-(2-naphthyl)propionic acid | 507472-11-9 Fmoc-(S)-3-amino-3-(2-naphthyl)propionic acid|15715|507472-11-9 https://www.jk-sci.com/products/j5315740 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/3030788ffabbb0e5651af2aaef7fd3a1.jpg?v=1776333479 Boc-(R)-3-amino-3-(6-methoxy-3-pyridyl)propionic acid | 1212298-83-3 Boc-(R)-3-amino-3-(6-methoxy-3-pyridyl)propionic acid|15740|1212298-83-3 https://www.jk-sci.com/products/s57c4x-124719 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/551444_60cf7da3-ec3d-4080-8ac3-6a4695de3c32.png?v=1775052528 Bisoprolol EP Impurity S | 123-08-0 Bisoprolol EP Impurity S|C4X-124719|123-08-0 https://www.jk-sci.com/products/a01955340 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/126415.png?v=1776308987 2-[Bis(methylthio)methylene]malononitrile, 97% | 5147-80-8 2-[Bis(methylthio)methylene]malononitrile, 97%|955340|5147-80-8 https://www.jk-sci.com/products/s57c4x-124736 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/e0623cc59fbb44570bc11f27a2601d5b.jpg?v=1776409784 Bisoprolol Impurity 36 | 14697-49-5 Bisoprolol Impurity 36|C4X-124736|14697-49-5 https://www.jk-sci.com/products/s57c4x-124722 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2d970bb35d6219b6ba5ab38ca3cb5e66.jpg?v=1776409775 Bisoprolol Impurity 22 | 1447715-45-8 Bisoprolol Impurity 22|C4X-124722|1447715-45-8 https://www.jk-sci.com/products/s57c4x-124725 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-12474 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/23d7678fa3960be7e242c047d8ff870e.jpg?v=1776409791 Bisoprolol EP Impurity D | 1225195-71-0 Bisoprolol EP Impurity D|C4X-12474|1225195-71-0 https://www.jk-sci.com/products/j5315907 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/6c6b15a8975d1c0921024b9a3acd1784.jpg?v=1776333598 (R)-g-(3-Bromobenzyl)-L-proline·HCl | 1049734-10-2 (R)-g-(3-Bromobenzyl)-L-proline·HCl|15907|1049734-10-2 https://www.jk-sci.com/products/s57c4x-124747 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/GeneralChemical_optimized_3a5297b7-7a68-42e1-a8e6-daaa3ac50aa7.png?v=1774882146 Bisoprolol Impurity 47 TFA salt Bisoprolol Impurity 47 TFA salt|C4X-124747 https://www.jk-sci.com/products/j5315984 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/2402b0418835fe7426d8750ed1d6b6bd.jpg?v=1776333681 Boc-(±)-trans-4-(2-fluorophenyl)pyrrolidine-3-carboxylic acid | 959581-02-3 Boc-(±)-trans-4-(2-fluorophenyl)pyrrolidine-3-carboxylic acid|15984|959581-02-3 https://www.jk-sci.com/products/j5316000 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/87c82f0731a1223877725f1a24391426.jpg?v=1776333722 (±)-trans-4-(2-Methylphenyl)pyrrolidine-3-carboxylic acid hydrochloride | 1047651-73-9 (±)-trans-4-(2-Methylphenyl)pyrrolidine-3-carboxylic acid hydrochloride|16000|1047651-73-9 https://www.jk-sci.com/products/j5316016 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9e35de27531a40daf5eb5d4bbf482013.jpg?v=1776333757 (±)-trans-4-(2,5-Dichlorophenyl)pyrrolidine-3-carboxylic acid hydrochloride | 1049734-30-6 (±)-trans-4-(2,5-Dichlorophenyl)pyrrolidine-3-carboxylic acid hydrochloride|16016|1049734-30-6 https://www.jk-sci.com/products/s57c4x-12476 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-1132112 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/359250_1396eb41-e005-4b5a-a235-e3ca4ba763ca.png?v=1774886661 Atorvastatin Impurity 112 | 459-57-4 Atorvastatin Impurity 112|C4X-1132112|459-57-4 https://www.jk-sci.com/products/s57c4x-1169186 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/a01955588 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/271136_d2070ec1-4c8a-4b6b-a934-0d4871008549.png?v=1776309017 Sodium thiosulfate anhydrous, 98% | 7772-98-7 Sodium thiosulfate anhydrous, 98%|955588|7772-98-7 https://www.jk-sci.com/products/s57c4x-1194 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/j5316054 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/f03faa5e9cac03c8df02b2c7fd2d3f81.jpg?v=1776333856 (±)-trans-4-(4-Pyridinyl)pyrrolidine-3-carboxylic acid dihydrochloride | 1049740-23-9 (±)-trans-4-(4-Pyridinyl)pyrrolidine-3-carboxylic acid dihydrochloride|16054|1049740-23-9 https://www.jk-sci.com/products/s57c4x-11482 2026-07-21T11:19:50-07:00 daily https://www.jk-sci.com/products/s57c4x-117628 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/9928b7c164738a1e7be684eb352e2416.jpg?v=1776408846 Salbutamol Impurity 28 | 174607-68-2 Salbutamol Impurity 28|C4X-117628|174607-68-2 https://www.jk-sci.com/products/j5316063 2026-07-21T11:19:50-07:00 daily https://cdn.shopify.com/s/files/1/0506/0005/0878/files/923234cf4d63665c892882a376a7773b.jpg?v=1776333883 Boc-(±)-trans-4-isopropylpyrrolidine-3-carboxylic acid | 1212348-80-5 Boc-(±)-trans-4-isopropylpyrrolidine-3-carboxylic acid|16063|1212348-80-5