Description

Fusidic Acid CAS NO 6990-06-3 is a bacteriostatic antibiotic belonging to the fusidane class, valued for its potent activity against Gram-positive bacteria, particularly Staphylococci. Its primary commercial importance lies in its use as a key active pharmaceutical ingredient (API) in topical and systemic formulations for treating skin and soft tissue infections. This compound is essential for pharmaceutical manufacturers, research institutions, and compounding pharmacies developing anti-infective therapies.

Application

• Pharmaceutical API: Core ingredient in topical creams, ointments, and gels for bacterial skin infections like impetigo and infected eczema.
• Oral and Injectable Formulations: Used in systemic antibiotic treatments, often in combination with other agents, for serious Staphylococcal infections.
• Ophthalmic Preparations: Formulated into eye drops and ointments for treating bacterial conjunctivitis and other ocular infections.
• Veterinary Medicine: Employed in topical and systemic veterinary products for treating bacterial infections in animals.
• Microbiological Research: Serves as a standard and selective agent in antimicrobial susceptibility testing and mechanism-of-action studies.
• Compounding Pharmacy: Used by pharmacists to prepare customized medication formulations for specific patient needs.

Basic Information

Product Name	Fusidic Acid
CAS No.	6990-06-3
Molecular Formula	C31H48O6
Molecular Weight	516.72 g/mol
Synonyms	Fusidate; Fucidin; Ramycin; SQ 16603; (2Z,4Z,6R,8S,10S,12S,14R,16S)-16-Acetoxy-3,11-dihydroxy-4,8,10,14-tetramethyl-2,6-cyclohexadecadiene-1,18-dione; 3α,11α,16β-Trihydroxy-29-nor-8α,9β,13α,14β-dammara-17(20),24-dien-21-oic acid 16-acetate
EINECS	230-263-0

Quality Control

Our Fusidic Acid is manufactured under strict quality management systems. It is tested to meet high-purity standards suitable for pharmaceutical applications, with specifications aligning with major pharmacopoeial guidelines. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are provided with each batch to ensure full traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed in a dry environment to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to almost white crystalline powder
Identification (IR)	Conforms to reference standard
Identification (HPLC)	Retention time corresponds to reference
Assay (HPLC)	98.0% - 102.0% (on anhydrous basis)
Water (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%
Microbial Enumeration	Meets Ph. Eur. 2.6.12 / USP <61> requirements

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