Description

Chloramphenicol CAS NO 56-75-7 is a broad-spectrum bacteriostatic antibiotic that effectively inhibits protein synthesis in susceptible microorganisms. Its primary commercial value lies in its proven efficacy against a wide range of Gram-positive and Gram-negative bacteria, including strains resistant to other antibiotics. This makes it a critical raw material for manufacturers in the pharmaceutical industry, particularly for the production of ophthalmic solutions, topical ointments, and veterinary medications where targeted antibacterial action is required.

Application

• Pharmaceutical Active Ingredient (API): Primary use in formulating antibiotic eye drops, ear drops, and topical creams for human use.
• Veterinary Medicine: Key component in treatments for bacterial infections in livestock, poultry, and companion animals.
• Research & Development: Used as a selective agent in molecular biology and microbiology laboratories for cell culture and genetic studies.
• Aquaculture: Employed in the treatment of bacterial diseases in fish and shrimp farming operations.
• Reference Standard: Serves as a high-purity analytical standard for quality control testing in pharmaceutical and regulatory laboratories.

Basic Information

Product Name	Chloramphenicol
CAS No.	56-75-7
Molecular Formula	C11H12Cl2N2O5
Molecular Weight	323.13 g/mol
Synonyms	Chloromycetin; D-(-)-Threo-2,2-Dichloro-N-[β-hydroxy-α-(hydroxymethyl)-p-nitrophenethyl]acetamide; Levomycetin; Chemicetina; Sintomicetina; Paraxin; 2,2-Dichloro-N-[(1R,2R)-1,3-dihydroxy-1-(4-nitrophenyl)propan-2-yl]acetamide; IUPAC: 2,2-dichloro-N-[(1R,2R)-2-hydroxy-1-(hydroxymethyl)-2-(4-nitrophenyl)ethyl]acetamide
EINECS	200-287-4

Quality Control

Our Chloramphenicol is manufactured under strict quality management systems to ensure batch-to-batch consistency and reliability. We offer grades compliant with major pharmacopoeial standards, including USP and EP. Every batch is supported by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles, available upon request to support your regulatory and quality assurance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, open flames, and incompatible materials. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to greyish-white or yellowish-white fine crystalline powder
Identification (IR)	Conforms
Identification (HPLC)	Conforms
Assay (HPLC)	98.0% - 102.0% (on dried basis)
Specific Rotation	+18.5° to +21.5°
Melting Point	149°C - 153°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%, Total impurities ≤ 2.0%

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