Ceftezole

Name: Ceftezole
Brand: Vaqora Chemicals
SKU: VQ-029714

About Ceftezole

Ceftezole is a high-purity reference standard of Ceftezole carrying the CAS registry number 26973-24-0. With the molecular formula C13H12N8O4S3, it has a molar mass of 440.5 g/mol. Common synonyms include Ceftezol and Demethylcefazolin.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

Laboratories use this Ceftezole standard for identity and assay testing, system suitability checks and method validation supporting ANDA and DMF filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Ceftezole in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Identification & assay
Method development & validation
QC reference material

Industries

Related to Ceftezole

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

Ceftezole impurities

Specifications & identifiers

Chemical identifiers
Product name	Ceftezole
Catalogue No.	VQ-029714
CAS Number	26973-24-0
IUPAC name	(6R,7R)-8-oxo-7-[[2-(tetrazol-1-yl)acetyl]amino]-3-(1,3,4-thiadiazol-2-ylsulfanylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
Molecular formula	C₁₃H₁₂N₈O₄S₃
Molecular weight	440.5 g/mol
Exact mass	440.0144
Grade	Reference Standard
HSN code	38229090
InChIKey	DZMVCVMFETWNIU-LDYMZIIASA-N
SMILES	C1C(=C(N2[C@H](S1)[C@@H](C2=O)NC(=O)CN3C=NN=N3)C(=O)O)CSC4=NN=CS4
PubChem CID	65755

Physical properties
Physical form	Solid
LogP (XLogP3)	-0.7
H-bond donors / acceptors	2 / 12
TPSA	235 Å²

Safety & hazard information (GHS)

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 Ceftezole?

The CAS Registry Number of Ceftezole is 26973-24-0. It is also known as Ceftezol, Demethylcefazolin, CG-B 3 Q.

What is the molecular formula and molecular weight of Ceftezole?

Ceftezole has the molecular formula C13H12N8O4S3 and a molecular weight of 440.5 g/mol. Its IUPAC name is (6R,7R)-8-oxo-7-[[2-(tetrazol-1-yl)acetyl]amino]-3-(1,3,4-thiadiazol-2-ylsulfanylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid.

What is Ceftezole used for?

Ceftezole is supplied as a characterised reference material related to Ceftezole. 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 Ceftezole can I order?

We supply Ceftezole 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 Ceftezole?

Yes. Every lot of Ceftezole 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 Ceftezole be shipped internationally?

Yes. Ceftezole 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.