Description

Cef3 CAS NO 199727-62-3 is a high-purity chemical intermediate belonging to the cephalosporin class of compounds. Its primary value lies in its role as a critical building block for the synthesis of advanced pharmaceutical active ingredients. This product is essential for manufacturers in the pharmaceutical and fine chemical industries, particularly those developing next-generation antibiotic formulations and other specialized medicinal compounds.

Application

• Pharmaceutical Synthesis: A key intermediate in the production of advanced cephalosporin-based antibiotics.
• Active Pharmaceutical Ingredient (API) Manufacturing: Used in the synthesis of complex API molecules requiring a specific β-lactam core structure.
• Research & Development: Serves as a crucial starting material for medicinal chemistry research and the development of new antibacterial agents.
• Fine Chemical Production: Employed in multi-step synthesis processes to create high-value, specialized chemical entities.
• Contract Manufacturing Organizations (CMOs): Supplied to CMOs engaged in the production of pharmaceutical intermediates under cGMP conditions.

Basic Information

Item	Details
Product Name	Cef3
CAS No.	199727-62-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	(6R,7R)-7-Amino-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 7-(2-Aminothiazol-4-yl)-2-(methoxyimino)acetate; Cephalosporin Cef3 Intermediate; Cef3 Intermediate; 7-ACA derivative Cef3; 199727-62-3; Cef-3; CEF-3
EINECS	Contact for details

Quality Control

Our Cef3 is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. The product undergoes rigorous analytical testing, including HPLC for assay and related substances, to meet the exacting standards required for pharmaceutical intermediate applications. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing all critical quality attributes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption. Recommended long-term storage temperature is between 2°C and 8°C.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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