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2-[[[[3-(2-Chloro-6-fluorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]methyl]-5,5-dimethyl-4-thiazolidinecarboxylic Acid; Flucloxacillin EP Impurity B

Also known as: (4S)-2-((3-(2-Chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxamido)methyl)-5,5-dimethylthiazolidine-4-carboxylic acid (Flucloxacillin Impurity), 4-Thiazolidinecarboxylic acid, 2-[[[[3-(2-chloro-6-fluorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]methyl]-5,5-dimethyl-, (4S)-, FluclFlucloxacillin EP Impurity B, Flucloxacillin EP Impurity B, Flucloxacillin EP Impurity B (Flucloxacillin Penilloic Acid), Flucloxacillin EP Impurity B (Mixture ofDiastereomers), Flucloxacillin Impurity 2(Flucloxacillin EP Impurity B), GBFSDMWQIFGGKS-MHTVFEQDSA-N

2-[[[[3-(2-Chloro-6-fluorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]methyl]-5,5-dimethyl-4-thiazolidinecarboxylic Acid; Flucloxacillin EP Impurity B (CAS 1276016-89-7) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C18H19ClFN3O4S and a molecular weight of 427.9 g/mol. It is also known as (4S)-2-((3-(2-Chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxamido)methyl)-5,5-dimethylthiazolidine-4-carboxylic acid (Flucloxacillin Impurity), 4-Thiazolidinecarboxylic acid, 2-[[[[3-(2-chloro-6-fluorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]methyl]-5,5-dimethyl-, (4S)- and FluclFlucloxacillin EP Impurity B. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1276016-89-7
Jingsj CID
J-1269683-5
Molecular Formula
C18H19ClFN3O4S
Molecular Weight
427.9 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of 2-[[[[3-(2-Chloro-6-fluorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]methyl]-5,5-dimethyl-4-thiazolidinecarboxylic Acid; Flucloxacillin EP Impurity B?

The CAS number of 2-[[[[3-(2-Chloro-6-fluorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]methyl]-5,5-dimethyl-4-thiazolidinecarboxylic Acid; Flucloxacillin EP Impurity B is 1276016-89-7.

What are the molecular formula and molecular weight of 2-[[[[3-(2-Chloro-6-fluorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]methyl]-5,5-dimethyl-4-thiazolidinecarboxylic Acid; Flucloxacillin EP Impurity B?

2-[[[[3-(2-Chloro-6-fluorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]methyl]-5,5-dimethyl-4-thiazolidinecarboxylic Acid; Flucloxacillin EP Impurity B has molecular formula C18H19ClFN3O4S and molecular weight 427.9 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2-[[[[3-(2-Chloro-6-fluorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]methyl]-5,5-dimethyl-4-thiazolidinecarboxylic Acid; Flucloxacillin EP Impurity B (CAS 1276016-89-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1269683-5 (accessed 2026-10-26).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.