Cefepime EP Impurity B

Name: Cefepime EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-022080

About Cefepime EP Impurity B

Listed under CAS 2923899-40-3, Cefepime EP Impurity B is a pharmacopeial impurity of Cefepime available from Vaqora Chemicals. The compound has the formula C25H29N9O7S3, corresponding to a molecular weight of 663.8 g/mol. Alternative names: Cefepime - Impurity B and cefepime dioxime.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Pharmaceutical QC and development laboratories use this impurity standard of Cefepime to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Cefepime 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 Cefepime

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

Cefepime impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Cefepime EP Impurity B
Catalogue No.	VQ-022080
CAS Number	2923899-40-3
IUPAC name	(6R,7R)-7-[[(2Z)-2-[2-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetyl]amino]-1,3-thiazol-4-yl]-2-methoxyiminoacetyl]amino]-3-[(1-methylpyrrolidin-1-ium-1-yl)methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
Molecular formula	C₂₅H₂₉N₉O₇S₃
Molecular weight	663.8 g/mol
Exact mass	663.1352
Grade	Reference Standard
HSN code	38229090
InChIKey	KMTSWFKAQYRTIV-LANNWKMSSA-N
SMILES	C[N+]1(CCCC1)CC2=C(N3[C@@H]([C@@H](C3=O)NC(=O)/C(=N\OC)/C4=CSC(=N4)NC(=O)/C(=N\OC)/C5=CSC(=N5)N)SC2)C(=O)[O-]
PubChem CID	71313230

Physical properties
Physical form	Solid
LogP (XLogP3)	0.9
H-bond donors / acceptors	3 / 15
TPSA	295 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 Cefepime EP Impurity B?

The CAS Registry Number of Cefepime EP Impurity B is 2923899-40-3. It is also known as Cefepime - Impurity B, cefepime dioxime, Cefepime Impurity 40.

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

Cefepime EP Impurity B has the molecular formula C25H29N9O7S3 and a molecular weight of 663.8 g/mol.

What is Cefepime EP Impurity B used for?

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

We supply Cefepime 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 Cefepime EP Impurity B?

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

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