Description

Cefmetazole CAS NO 56796-20-4 is a second-generation cephamycin antibiotic belonging to the β-lactam class. This compound is valued for its broad-spectrum activity against both gram-positive and gram-negative bacteria, including many β-lactamase-producing strains. It is primarily utilized as a key pharmaceutical intermediate in the synthesis of finished antibiotic formulations for clinical use. Our supply ensures high purity and consistent quality, meeting the stringent demands of the global pharmaceutical manufacturing sector.

Application

• Primary use as a pharmaceutical active ingredient (API) in injectable antibiotic formulations.
• Critical intermediate in the synthesis of advanced cephamycin-based drugs.
• Used in research and development of new antibacterial agents and combination therapies.
• Reference standard for quality control and analytical testing in pharmaceutical laboratories.
• Application in veterinary medicine for developing treatments for bacterial infections in animals.

Basic Information

Product Name	Cefmetazole
CAS No.	56796-20-4
Molecular Formula	C15H17N7O5S3
Molecular Weight	471.53 g/mol
Synonyms	Cefmetazole Sodium; CS-1170; SKF 83088; (6R,7S)-7-[[(Cyanomethyl)thio]acetyl]amino]-7-methoxy-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid; Cefmetazole acid; Antibiotic CS-1170
EINECS	Contact for details

Quality Control

Our Cefmetazole is manufactured under strict quality systems to ensure it meets the high standards required for pharmaceutical intermediates. Each batch undergoes comprehensive analytical testing, including identity confirmation, purity assay, and impurity profiling via HPLC. A Certificate of Analysis (COA) detailing all test results is provided with every shipment. We can support compliance with relevant pharmacopeial standards (e.g., USP, EP) upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under conditions that minimize exposure to atmospheric humidity to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 1.0%
Residual Solvents (GC)	Complies with ICH guidelines

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.