Description

Cefoselis CAS NO 122841-10-5 is a fourth-generation cephalosporin antibiotic belonging to the β-lactam class, valued for its broad-spectrum activity against Gram-positive and Gram-negative bacteria. Its primary commercial importance lies in its enhanced stability against β-lactamases, making it a critical active pharmaceutical ingredient (API) for advanced therapeutic formulations. This compound is essential for pharmaceutical manufacturers and research institutions developing injectable antibiotic solutions to combat serious infections.

Application

• Pharmaceutical API: Core active ingredient in the synthesis of sterile injectable antibiotic formulations.
• Hospital Infection Treatment: Used in drugs targeting severe infections such as sepsis, pneumonia, and complicated urinary tract infections.
• Antibacterial Research: A key reference standard in microbiological and pharmacological research for studying new antibiotic resistance mechanisms.
• Veterinary Medicine: Employed in developing treatments for bacterial infections in animals.
• Combination Therapies: Utilized in combination with other agents for enhanced efficacy in treating multidrug-resistant bacterial strains.

Basic Information

Product Name	Cefoselis
CAS No.	122841-10-5
Molecular Formula	C₁₉H₂₀N₈O₇S₂
Molecular Weight	528.54 g/mol
Synonyms	Cefoselis Sulfate; FK-037; Wincef; (6R,7R)-7-[[(2Z)-2-(2-Amino-1,3-thiazol-4-yl)-2-methoxyiminoacetyl]amino]-3-[[(3S)-1-(2-sulfoethyl)pyrazol-2-ium-3-yl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate; Cefoselisum; Cefoselis Sulphate
EINECS	Contact for details

Quality Control

Our Cefoselis is manufactured under strict quality systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and potency, identification by spectroscopic methods, and stringent control of related substances and residual solvents. We provide full traceability and Certificates of Analysis (COA) compliant with cGMP and ICH Q7 guidelines for pharmaceutical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept in a dry environment. For long-term storage, consider desiccants or inert atmosphere packing.

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% - 102.0% (on anhydrous basis)
Water Content (KF)	≤ 2.0%
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 0.5%
Residual Solvents (GC)	Meets ICH Q3C limits
pH (1% solution)	4.0 - 6.0
Specific Rotation	+50° to +60° (c=1, in H₂O)

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