Flucloxacillin EP Impurity B

About Flucloxacillin EP Impurity B

Flucloxacillin EP Impurity B is a pharmacopeial impurity of Flucloxacillin carrying the CAS registry number 1276016-89-7. Its molecular formula is C18H19ClFN3O4S and its molecular weight is 427.9 g/mol.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Good laboratory practice and suitable PPE are recommended during handling.

Pharmaceutical QC and development laboratories use this impurity standard of Flucloxacillin to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Industries

Related to Flucloxacillin

View every impurity, metabolite and intermediate we list for Flucloxacillin.

Flucloxacillin impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Flucloxacillin EP Impurity B
Catalogue No.	VQ-022655
CAS Number	1276016-89-7
IUPAC name	(4S)-2-[[[3-(2-chloro-6-fluorophenyl)-5-methyl-1,2-oxazole-4-carbonyl]amino]methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
Molecular formula	C₁₈H₁₉ClFN₃O₄S
Molecular weight	427.9 g/mol
Exact mass	427.0769
Grade	Reference Standard
HSN code	38229090
InChIKey	GBFSDMWQIFGGKS-MHTVFEQDSA-N
SMILES	CC1=C(C(=NO1)C2=C(C=CC=C2Cl)F)C(=O)NCC3N[C@H](C(S3)(C)C)C(=O)O
PubChem CID	71316777

Physical properties
Physical form	Solid
LogP (XLogP3)	0.6
H-bond donors / acceptors	3 / 8
TPSA	130 Å²

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Flucloxacillin EP Impurity B?

The CAS Registry Number of Flucloxacillin EP Impurity B is 1276016-89-7. It is also known as Flucloxacillin Penilloic Acid (Mixture of Diastereomers), Flucloxacillin Sodium Monohydrate - Impurity B.

What is the molecular formula and molecular weight of Flucloxacillin EP Impurity B?

Flucloxacillin EP Impurity B has the molecular formula C18H19ClFN3O4S and a molecular weight of 427.9 g/mol. Its IUPAC name is (4S)-2-[[[3-(2-chloro-6-fluorophenyl)-5-methyl-1,2-oxazole-4-carbonyl]amino]methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid.

What is Flucloxacillin EP Impurity B used for?

Flucloxacillin EP Impurity B is supplied as a characterised reference material related to Flucloxacillin. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Flucloxacillin EP Impurity B can I order?

We supply Flucloxacillin EP Impurity B in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Flucloxacillin EP Impurity B?

Yes. Every lot of Flucloxacillin EP Impurity B is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Flucloxacillin EP Impurity B be shipped internationally?

Yes. We export Flucloxacillin EP Impurity B worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.