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Pharmacopeial Impurities (EP / USP / BP)

Cloxacillin EP Impurity B

Reference StandardAvailable on request

Buy Cloxacillin EP Impurity B (CAS 1642559-64-5) from Zemixal. Request a quote with price, lead time and documents. Quotes within one business day.

Pack sizes
Cloxacillin EP Impurity B chemical structure
CAS number1642559-64-5
FormulaC18H20ClN3O4S
Molar mass409.9 g/mol
Physical formSolid
HS code38229090
InChIKeyQNBJJEXBUJGUBR-CVRLYYSRSA-N
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

About Cloxacillin EP Impurity B

Cloxacillin EP Impurity B is supplied by Zemixal as a characterised reference material for Cloxacillin analysis. Identity at a glance (Reference Standard): CAS 1642559-64-5, formula C18H20ClN3O4S and molar mass 409.9 g/mol. It is handled as a solid.

Typical applications

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

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. 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 Cloxacillin

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

Cloxacillin 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 Cloxacillin EP Impurity B
Product nameCloxacillin EP Impurity B
Catalogue numberZX-021278
CAS number1642559-64-5
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 formulaC18H20ClN3O4S
Molar mass409.9 g/mol
Exact mass409.0863
GradeReference Standard
Physical formSolid
XLogP30.5
H-bond donors / acceptors3 / 7
Topological polar surface area130 Ų
HS code38229090
InChIKeyQNBJJEXBUJGUBR-CVRLYYSRSA-N
SMILESCC1=C(C(=NO1)C2=CC=CC=C2Cl)C(=O)NCC3N[C@H](C(S3)(C)C)C(=O)O
PubChem CID155801562
SynonymsCloxacillin Sodium EP Impurity B, Cloxacillin Sodium - Impurity B, Cloxacillin penilloic acid

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 Cloxacillin 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 Cloxacillin EP Impurity B

Which CAS number identifies Cloxacillin EP Impurity B?
Cloxacillin EP Impurity B is registered under CAS 1642559-64-5. You may also see it listed as Cloxacillin Sodium EP Impurity B, Cloxacillin Sodium - Impurity B, Cloxacillin penilloic acid. Our catalogue number for this item is ZX-021278.
What are the formula and molar mass of Cloxacillin EP Impurity B?
For Cloxacillin EP Impurity B, its formula is C18H20ClN3O4S and its molar mass is 409.9 g/mol. The systematic (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. InChIKey QNBJJEXBUJGUBR-CVRLYYSRSA-N lets you match it in any structure database.
How is Cloxacillin EP Impurity B used in pharmaceutical QC?
Cloxacillin EP Impurity B is a characterised reference material linked to Cloxacillin. 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 Cloxacillin 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 Cloxacillin 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 Cloxacillin EP Impurity B to my country?
Yes. Cloxacillin 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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