Cloxacillin EP Impurity B

Name: Cloxacillin EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-022247

About Cloxacillin EP Impurity B

Cloxacillin EP Impurity B is a pharmacopeial impurity of Cloxacillin carrying the CAS registry number 1642559-64-5. Its molecular formula is C18H20ClN3O4S and its molecular weight is 409.9 g/mol. Common synonyms include Cloxacillin Sodium EP Impurity B and Cloxacillin Sodium - Impurity B.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Good laboratory practice and suitable PPE are recommended during handling.

This Cloxacillin impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Cloxacillin EP Impurity B in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

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

Industries

Related to Cloxacillin

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

Cloxacillin impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Cloxacillin EP Impurity B
Catalogue No.	VQ-022247
CAS Number	1642559-64-5
IUPAC name	(4S)-2-[[[3-(2-chlorophenyl)-5-methyl-1,2-oxazole-4-carbonyl]amino]methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
Molecular formula	C₁₈H₂₀ClN₃O₄S
Molecular weight	409.9 g/mol
Exact mass	409.0863
Grade	Reference Standard
HSN code	38229090
InChIKey	QNBJJEXBUJGUBR-CVRLYYSRSA-N
SMILES	CC1=C(C(=NO1)C2=CC=CC=C2Cl)C(=O)NCC3N[C@H](C(S3)(C)C)C(=O)O
PubChem CID	155801562

Physical properties
Physical form	Solid
LogP (XLogP3)	0.5
H-bond donors / acceptors	3 / 7
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 Cloxacillin EP Impurity B?

The CAS Registry Number of Cloxacillin EP Impurity B is 1642559-64-5. It is also known as Cloxacillin Sodium EP Impurity B, Cloxacillin Sodium - Impurity B, Cloxacillin penilloic acid.

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

Cloxacillin EP Impurity B has the molecular formula C18H20ClN3O4S and a molecular weight of 409.9 g/mol. Its IUPAC name is (4S)-2-[[[3-(2-chlorophenyl)-5-methyl-1,2-oxazole-4-carbonyl]amino]methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid.

What is Cloxacillin EP Impurity B used for?

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

We supply Cloxacillin 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 Cloxacillin EP Impurity B?

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

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