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Pharmacopeial Impurities (EP / USP / BP)

Cefotaxime EP Impurity B

Reference StandardAvailable on request

Buy Cefotaxime EP Impurity B (CAS 66340-28-1) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-021122.

Pack sizes
Cefotaxime EP Impurity B chemical structure
CAS number66340-28-1
FormulaC14H15N5O6S2
Molar mass413.4 g/mol
Physical formSolid
HS code38229090
InChIKeyFHYWAOQGXIZAAF-GHXIOONMSA-N
IUPAC name(6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetyl]amino]-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

About Cefotaxime EP Impurity B

Cefotaxime EP Impurity B is supplied by Zemixal as a characterised reference material for Cefotaxime analysis. For your records (Reference Standard), the material is defined by CAS 66340-28-1, formula C14H15N5O6S2 and molar mass 413.4 g/mol. It is handled as a solid.

Where it is used

  • 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. Every shipment includes a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Cefotaxime

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

Cefotaxime standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Cefotaxime EP Impurity B
Product nameCefotaxime EP Impurity B
Catalogue numberZX-021122
CAS number66340-28-1
IUPAC name(6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetyl]amino]-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
Molecular formulaC14H15N5O6S2
Molar mass413.4 g/mol
Exact mass413.0464
GradeReference Standard
Physical formSolid
XLogP3-1.9
H-bond donors / acceptors4 / 11
Topological polar surface area221 Ų
HS code38229090
InChIKeyFHYWAOQGXIZAAF-GHXIOONMSA-N
SMILESCO/N=C(/C1=CSC(=N1)N)\C(=O)N[C@H]2[C@@H]3N(C2=O)C(=C(CS3)CO)C(=O)O
PubChem CID9576239
SynonymsCefotaxime Sodium - Impurity B, Cefotaxime Sodium EP Impurity B, 3-Desacetyl Cefotaxime Potassium Salt, Desacetyl Cefotaxime Impurity, Cefotaxime sodium impurity B, 3-Desacetylcefotaxime potassium, 66340-28-1, Free base

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 Cefotaxime 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 Cefotaxime EP Impurity B

Which CAS number identifies Cefotaxime EP Impurity B?
Cefotaxime EP Impurity B is registered under CAS 66340-28-1. You may also see it listed as Cefotaxime Sodium - Impurity B, Cefotaxime Sodium EP Impurity B, 3-Desacetyl Cefotaxime Potassium Salt. Our catalogue number for this item is ZX-021122.
What are the formula and molar mass of Cefotaxime EP Impurity B?
For Cefotaxime EP Impurity B, its formula is C14H15N5O6S2 and its molar mass is 413.4 g/mol. The systematic (IUPAC) name is (6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetyl]amino]-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid. InChIKey FHYWAOQGXIZAAF-GHXIOONMSA-N lets you match it in any structure database.
How is Cefotaxime EP Impurity B used in pharmaceutical QC?
Cefotaxime EP Impurity B is a characterised reference material linked to Cefotaxime. 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 Cefotaxime 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 Cefotaxime 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 Cefotaxime EP Impurity B to my country?
Yes. Cefotaxime 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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