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API Reference Standards

Cefoxitin

Reference StandardAvailable on request

Cefoxitin (CAS 35607-66-0) supplier Zemixal: C16H17N3O7S2, COA and SDS with every lot, worldwide shipping. Packs from 10 mg.

Pack sizes
Cefoxitin chemical structure
CAS number35607-66-0
FormulaC16H17N3O7S2
Molar mass427.5 g/mol
Physical formSolid
HS code38229090
InChIKeyWZOZEZRFJCJXNZ-ZBFHGGJFSA-N
IUPAC name(6R,7S)-3-(carbamoyloxymethyl)-7-methoxy-8-oxo-7-[(2-thiophen-2-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

About Cefoxitin

Zemixal lists Cefoxitin for laboratories that identify, quantify or control Cefoxitin and its related substances. Key data (Reference Standard): CAS 35607-66-0, formula C16H17N3O7S2 and molar mass 427.5 g/mol. It is handled as a solid.

Use cases we see most often

  • Identification & assay
  • Method development & validation
  • QC reference material

Storage and safety notes

It carries the GHS signal word Danger (H317 and H334), so wear gloves and eye protection and work with good ventilation.

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 Cefoxitin

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

Cefoxitin standards

Typical uses

  • Identification & assay
  • Method development & validation
  • QC reference material

Applications

Specifications and identifiers

Specifications of Cefoxitin
Product nameCefoxitin
Catalogue numberZX-021127
CAS number35607-66-0
IUPAC name(6R,7S)-3-(carbamoyloxymethyl)-7-methoxy-8-oxo-7-[(2-thiophen-2-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
Molecular formulaC16H17N3O7S2
Molar mass427.5 g/mol
Exact mass427.0508
GradeReference Standard
Physical formSolid
H-bond donors / acceptors3 / 9
Topological polar surface area202 Ų
HS code38229090
InChIKeyWZOZEZRFJCJXNZ-ZBFHGGJFSA-N
SMILESCO[C@@]1([C@@H]2N(C1=O)C(=C(CS2)COC(=O)N)C(=O)O)NC(=O)CC3=CC=CS3
PubChem CID441199
SynonymsCefoxitine, Rephoxitin, Mefoxitin, Cenomycin, ceftoxitin, MK 306, Mefoxin, Cefoxitin S-Oxide, MK-306, Cefoxotin, 4kow

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

  • H317May cause an allergic skin reaction
  • H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

Precautionary statements P233, P260, P261, P271, P272, P280, P284, P302 + P352, P304 + P340, P321, P333 + P317, P342 + P316, P362 + P364, P403, P501

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 Cefoxitin
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 Cefoxitin

Which CAS number identifies Cefoxitin?
Cefoxitin is registered under CAS 35607-66-0. You may also see it listed as Cefoxitine, Rephoxitin, Mefoxitin. Our catalogue number for this item is ZX-021127.
What are the formula and molar mass of Cefoxitin?
For Cefoxitin, its formula is C16H17N3O7S2 and its molar mass is 427.5 g/mol. The systematic (IUPAC) name is (6R,7S)-3-(carbamoyloxymethyl)-7-methoxy-8-oxo-7-[(2-thiophen-2-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid. InChIKey WZOZEZRFJCJXNZ-ZBFHGGJFSA-N lets you match it in any structure database.
How is Cefoxitin used in pharmaceutical QC?
Cefoxitin is a characterised reference material linked to Cefoxitin. 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 Cefoxitin?
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 Cefoxitin?
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 Cefoxitin to my country?
Yes. Because Cefoxitin 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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