Description

Cefmetazole Sodium CAS NO 56796-39-5 is a second-generation cephamycin antibiotic, chemically classified as a β-lactam. This compound is valued for its broad-spectrum activity against Gram-positive and Gram-negative bacteria, including many β-lactamase-producing strains. It is primarily utilized in the pharmaceutical industry for the formulation of sterile injectable antibiotic preparations.

Application

• Active Pharmaceutical Ingredient (API) for injectable antibiotic formulations.
• Research and development of new antibacterial therapies and combination drugs.
• Manufacturing of reference standards for quality control laboratories.
• Use in clinical studies and pharmacological research.
• Intermediate in the synthesis of more complex antibiotic derivatives.

Basic Information

Product Name	Cefmetazole Sodium
CAS No.	56796-39-5
Molecular Formula	C15H16N7NaO5S3
Molecular Weight	493.51 g/mol
Synonyms	Cefmetazole Sodium Salt; CS-1170; Sodium (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-carboxylate; SKF 83088; Cefmetazol Sodium; Cefmetazole Na; Cefmetazolum Natricum
EINECS	Contact for details

Quality Control

Our Cefmetazole Sodium is manufactured under strict quality systems. Each batch undergoes comprehensive analytical testing to ensure it meets high-purity standards suitable for pharmaceutical applications. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment. We can support compliance with relevant pharmacopeial standards (e.g., USP, EP, JP) 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 in a dry environment to prevent degradation. For long-term storage, consider desiccated conditions.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Identification (HPLC)	Conforms
Assay (HPLC)	98.0% - 102.0% (on anhydrous basis)
pH (1% Solution)	4.5 - 6.5
Water Content (KF)	≤ 5.0%
Related Substances (HPLC)	Individual impurity ≤ 1.0%; Total impurities ≤ 3.0%
Residual Solvents (GC)	Meets ICH Q3C guidelines
Bacterial Endotoxins	< 0.10 EU/mg
Sterility (for sterile grade)	Sterile

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