Cefoxitin

About Cefoxitin

Cefoxitin is a high-purity reference standard of Cefoxitin carrying the CAS registry number 35607-66-0. With the molecular formula C16H17N3O7S2, it has a molar mass of 427.5 g/mol. Common synonyms include Cefoxitine and Rephoxitin.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. It carries the GHS signal word “Danger” with 2 hazard statements. Review the Safety Data Sheet before use.

As a reference sample of Cefoxitin, it is used for identification, assay and impurity-profiling work during analytical method development, validation (AMV) and routine QC. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

We offer Cefoxitin in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Identification & assay
Method development & validation
QC reference material

Industries

Related to Cefoxitin

View every impurity, metabolite and intermediate we list for Cefoxitin.

Cefoxitin impurities

Specifications & identifiers

Chemical identifiers
Product name	Cefoxitin
Catalogue No.	VQ-022094
CAS Number	35607-66-0
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 formula	C₁₆H₁₇N₃O₇S₂
Molecular weight	427.5 g/mol
Exact mass	427.0508
Grade	Reference Standard
HSN code	38229090
InChIKey	WZOZEZRFJCJXNZ-ZBFHGGJFSA-N
SMILES	CO[C@@]1([C@@H]2N(C1=O)C(=C(CS2)COC(=O)N)C(=O)O)NC(=O)CC3=CC=CS3
PubChem CID	441199

Physical properties
Physical form	Solid
H-bond donors / acceptors	3 / 9
TPSA	202 Å²
Synonyms	Cefoxitine, Rephoxitin, Mefoxitin, Cenomycin, ceftoxitin, MK 306, Mefoxin, Cefoxitin S-Oxide, MK-306, Cefoxotin, 4kow

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

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 is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Cefoxitin?

The CAS Registry Number of Cefoxitin is 35607-66-0. It is also known as Cefoxitine, Rephoxitin, Mefoxitin.

What is the molecular formula and molecular weight of Cefoxitin?

Cefoxitin has the molecular formula C16H17N3O7S2 and a molecular weight of 427.5 g/mol. Its 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.

What is Cefoxitin used for?

Cefoxitin is supplied as a characterised reference material related to Cefoxitin. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Cefoxitin can I order?

We supply Cefoxitin in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Cefoxitin?

Yes. Every lot of Cefoxitin is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Cefoxitin be shipped internationally?

Yes. Cefoxitin is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.