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API Reference Standards

Ceftezole

Reference StandardAvailable on request

Ceftezole (CAS 26973-24-0) supplier Zemixal. Request a quote with price, lead time and documents. Ships from India to 120+ countries.

Pack sizes
Ceftezole chemical structure
CAS number26973-24-0
FormulaC13H12N8O4S3
Molar mass440.5 g/mol
Physical formSolid
HS code38229090
InChIKeyDZMVCVMFETWNIU-LDYMZIIASA-N
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

About Ceftezole

Ceftezole is supplied by Zemixal as a characterised reference material for Ceftezole analysis. For your records (Reference Standard), the material is defined by CAS 26973-24-0, formula C13H12N8O4S3 and molar mass 440.5 g/mol. It is handled as a solid.

Common uses in the lab and plant

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

Safe handling

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. Each lot travels with a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Ceftezole

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

Ceftezole standards

Typical uses

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

Applications

Specifications and identifiers

Specifications of Ceftezole
Product nameCeftezole
Catalogue numberZX-028530
CAS number26973-24-0
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 formulaC13H12N8O4S3
Molar mass440.5 g/mol
Exact mass440.0144
GradeReference Standard
Physical formSolid
XLogP3-0.7
H-bond donors / acceptors2 / 12
Topological polar surface area235 Ų
HS code38229090
InChIKeyDZMVCVMFETWNIU-LDYMZIIASA-N
SMILESC1C(=C(N2[C@H](S1)[C@@H](C2=O)NC(=O)CN3C=NN=N3)C(=O)O)CSC4=NN=CS4
PubChem CID65755
SynonymsCeftezol, Demethylcefazolin, CG-B 3 Q, demethyl cefazolin

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

Safety and GHS hazards

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 Ceftezole
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 Ceftezole

Which CAS number identifies Ceftezole?
Ceftezole is registered under CAS 26973-24-0. You may also see it listed as Ceftezol, Demethylcefazolin, CG-B 3 Q. Our catalogue number for this item is ZX-028530.
What are the formula and molar mass of Ceftezole?
For Ceftezole, its formula is C13H12N8O4S3 and its molar mass is 440.5 g/mol. The systematic (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. InChIKey DZMVCVMFETWNIU-LDYMZIIASA-N lets you match it in any structure database.
How is Ceftezole used in pharmaceutical QC?
Ceftezole is a characterised reference material linked to Ceftezole. 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 Ceftezole?
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 Ceftezole?
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 Ceftezole to my country?
Yes. Because Ceftezole 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.

More Ceftezole standards

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