Oxacillin EP Impurity B

About Oxacillin EP Impurity B

Oxacillin EP Impurity B is a pharmacopeial impurity of Oxacillin carrying the CAS registry number 1642629-95-5. The compound has the formula C19H21N3O6S, corresponding to a molecular weight of 419.5 g/mol. Common synonyms include (4S)-Penicilloic Acids of Oxacillin.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

As a characterised impurity of Oxacillin, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

We offer Oxacillin EP Impurity B in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

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

Industries

Related to Oxacillin

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

Oxacillin impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Oxacillin EP Impurity B
Catalogue No.	VQ-041254
CAS Number	1642629-95-5
IUPAC name	(4S)-2-[carboxy-[(5-methyl-3-phenyl-1,2-oxazole-4-carbonyl)amino]methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
Molecular formula	C₁₉H₂₁N₃O₆S
Molecular weight	419.5 g/mol
Exact mass	419.1151
Grade	Reference Standard
HSN code	38229090
InChIKey	JCHZLBSPYSDECZ-BBBYJDLNSA-N
SMILES	CC1=C(C(=NO1)C2=CC=CC=C2)C(=O)NC(C3N[C@H](C(S3)(C)C)C(=O)O)C(=O)O
PubChem CID	156596485

Physical properties
Physical form	Solid
LogP (XLogP3)	-0.5
H-bond donors / acceptors	4 / 9
TPSA	167 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 Oxacillin EP Impurity B?

The CAS Registry Number of Oxacillin EP Impurity B is 1642629-95-5. It is also known as (4S)-Penicilloic Acids of Oxacillin.

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

Oxacillin EP Impurity B has the molecular formula C19H21N3O6S and a molecular weight of 419.5 g/mol. Its IUPAC name is (4S)-2-[carboxy-[(5-methyl-3-phenyl-1,2-oxazole-4-carbonyl)amino]methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid.

What is Oxacillin EP Impurity B used for?

Oxacillin EP Impurity B is supplied as a characterised reference material related to Oxacillin. 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 Oxacillin EP Impurity B can I order?

We supply Oxacillin 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 Oxacillin EP Impurity B?

Yes. Every lot of Oxacillin 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 Oxacillin EP Impurity B be shipped internationally?

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