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Pharmacopeial Impurities (EP / USP / BP)

Cefepime EP Impurity B

Reference StandardAvailable on request

Buy Cefepime EP Impurity B (CAS 2923899-40-3) from Zemixal: C25H29N9O7S3, COA and SDS with every lot, worldwide shipping.

Pack sizes
Cefepime EP Impurity B chemical structure
CAS number2923899-40-3
FormulaC25H29N9O7S3
Molar mass663.8 g/mol
Physical formSolid
HS code38229090
InChIKeyKMTSWFKAQYRTIV-LANNWKMSSA-N
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

About Cefepime EP Impurity B

Analytical teams working on Cefepime use Cefepime EP Impurity B as a qualified comparison standard. Identity at a glance (Reference Standard): CAS 2923899-40-3, formula C25H29N9O7S3 and molar mass 663.8 g/mol. It is handled as a solid.

Common uses in the lab and plant

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

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. You receive a certificate of analysis with characterisation data with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Cefepime

See every impurity, metabolite and related compound we list for this API.

Cefepime standards

Typical uses

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

Applications

Grade guides

Specifications and identifiers

Specifications of Cefepime EP Impurity B
Product nameCefepime EP Impurity B
Catalogue numberZX-021113
CAS number2923899-40-3
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 formulaC25H29N9O7S3
Molar mass663.8 g/mol
Exact mass663.1352
GradeReference Standard
Physical formSolid
XLogP30.9
H-bond donors / acceptors3 / 15
Topological polar surface area295 Ų
HS code38229090
InChIKeyKMTSWFKAQYRTIV-LANNWKMSSA-N
SMILESC[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 CID71313230
SynonymsCefepime - Impurity B, cefepime dioxime, Cefepime Impurity 40

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of Cefepime EP Impurity B
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Cefepime EP Impurity B

Which CAS number identifies Cefepime EP Impurity B?
Cefepime EP Impurity B is registered under CAS 2923899-40-3. You may also see it listed as Cefepime - Impurity B, cefepime dioxime, Cefepime Impurity 40. Our catalogue number for this item is ZX-021113.
What are the formula and molar mass of Cefepime EP Impurity B?
For Cefepime EP Impurity B, its formula is C25H29N9O7S3 and its molar mass is 663.8 g/mol. InChIKey KMTSWFKAQYRTIV-LANNWKMSSA-N lets you match it in any structure database.
How is Cefepime EP Impurity B used in pharmaceutical QC?
Cefepime EP Impurity B is a characterised reference material linked to Cefepime. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Cefepime EP Impurity B?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Cefepime EP Impurity B?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Cefepime EP Impurity B to my country?
Yes. Cefepime EP Impurity B ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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