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Pharmacopeial Impurities (EP / USP / BP)

Cefazolin EP Impurity A

Reference StandardAvailable on request

Cefazolin EP Impurity A (CAS 30246-33-4) supplier Zemixal. Request a quote with price, lead time and documents. Catalogue no. ZX-020143.

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Cefazolin EP Impurity A chemical structure
CAS number30246-33-4
FormulaC11H12N4O3S3
Molar mass344.4 g/mol
Physical formSolid
HS code38229090
InChIKeyHJSGHKMSDOLGJJ-HZGVNTEJSA-N
IUPAC name(6R,7R)-7-amino-3-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

About Cefazolin EP Impurity A

Analytical teams working on Cefazolin use Cefazolin EP Impurity A as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 30246-33-4, formula C11H12N4O3S3 and molar mass 344.4 g/mol. It is handled as a solid.

Use cases we see most often

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

Handling and storage

Hazard communication follows GHS (Danger: H302, H315, H317 and H319). Our SDS lists exposure controls and first-aid measures.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. 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 Cefazolin

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

Cefazolin 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 Cefazolin EP Impurity A
Product nameCefazolin EP Impurity A
Catalogue numberZX-020143
CAS number30246-33-4
IUPAC name(6R,7R)-7-amino-3-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
Molecular formulaC11H12N4O3S3
Molar mass344.4 g/mol
Exact mass344.0072
GradeReference Standard
Physical formSolid
XLogP3-3.2
H-bond donors / acceptors2 / 9
Topological polar surface area188 Ų
HS code38229090
InChIKeyHJSGHKMSDOLGJJ-HZGVNTEJSA-N
SMILESCC1=NN=C(S1)SCC2=C(N3[C@@H]([C@@H](C3=O)N)SC2)C(=O)O
PubChem CID6350581
SynonymsCefazolin Sodium - Impurity A, 7-ZACA, 7-Amino-3-[(5-methyl-1,3,4-thiadiazol-2-ylthio)methyl]-3-cephem-4-carboxylic Acid, 7-TDA, 7beta-amino-3-(2-methyl-1,3,4-thiadiazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid, 7beta-amino-3-(5-methyl-1,3,4-thiadiazol-2-ylthiomethyl)-3-cephem-4-carboxylic acid

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

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard

Signal word Danger

  • H302Harmful if swallowed
  • H315Causes skin irritation
  • H317May cause an allergic skin reaction
  • H319Causes serious eye irritation
  • H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
  • H335May cause respiratory irritation

Precautionary statements P233, P260, P261, P264, P264 + P265, P270, P271, P272, P280, P284, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P333 + P317, P337 + P317, P342 + P316, P362 + P364, P403, P403 + P233

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Cefazolin EP Impurity A
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 Cefazolin EP Impurity A

Which CAS number identifies Cefazolin EP Impurity A?
Cefazolin EP Impurity A is registered under CAS 30246-33-4. You may also see it listed as Cefazolin Sodium - Impurity A, 7-ZACA, 7-Amino-3-[(5-methyl-1,3,4-thiadiazol-2-ylthio)methyl]-3-cephem-4-carboxylic Acid. Our catalogue number for this item is ZX-020143.
What are the formula and molar mass of Cefazolin EP Impurity A?
For Cefazolin EP Impurity A, its formula is C11H12N4O3S3 and its molar mass is 344.4 g/mol. The systematic (IUPAC) name is (6R,7R)-7-amino-3-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid. InChIKey HJSGHKMSDOLGJJ-HZGVNTEJSA-N lets you match it in any structure database.
How is Cefazolin EP Impurity A used in pharmaceutical QC?
Cefazolin EP Impurity A is a characterised reference material linked to Cefazolin. 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 Cefazolin EP Impurity A?
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 Cefazolin EP Impurity A?
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 Cefazolin EP Impurity A to my country?
Yes. Because Cefazolin EP Impurity A is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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