chloroamphenicol; CAS RN.:56-75-7

Brief Description
CAS No.: 56-75-7 Other Names: 2,2-dichloro-n-[2-hydroxy-1-(hydro... MF: C11H12Cl2N2O5
EINECS No.: 200-287-4 Place of Origin: Zhejiang China (Mainland) Type: Antibiotic and Antimicrobial Agents
Grade Standard: Medicine Grade Usage: Animal Pharmaceuticals Brand Name: DERY
Model Number: DR-HM-001A Purity: 99% 
Delivery Terms & Packaging
Packaging Detail:25kg/drum 25cm*25cm*36cm or customized packing when larger or smaller than 25kg
Delivery Detail:In 15-20 days upon the receipt of the payment
chloroamphenicol; CAS RN.:56-75-7

1. CAS RN.:56-75-7;
2. Spec.:USP33/EP6th/BP2010
3. the dominant products of our company;
4. high quality & competitive price;

Product Name:chloroamphenicol


chloramphenicol; 2,2-dichloro-n-[2-hydroxy-1-(hydroxymethyl)-2-(4-nitrophenyl)ethyl]acetamide; d-(-)-threo-2,2-dichloro-n-[beta-hydroxy-alpha-(hydroxy-methyl)-p-nitrophenethyl]acetamide; chloromycetin; 2,2-dichloro-N-[(1R,2S)-1,3-dihydroxy-1-(4-nitrophenyl)propan-2-yl]acetamide; 2,2-dichloro-N-[(1S,2R)-1,3-dihydroxy-1-(4-nitrophenyl)propan-2-yl]acetamide; 2,2-dichloro-N-[(1R)-2-hydroxy-1-(hydroxymethyl)-2-(4-nitrophenyl)ethyl]acetamide
CAS RN.: 56-75-7
Molecular Weight:323.1294
Molecular Formula:C11H12Cl2N2O5

Standards: CP2010/USP33/EP6th/BP2010/IP2007


A white, greyish-white or yellowish-white, fine, crystalline powder or fine crystals,  needles or elongated plates, slightly soluble in water, freely soluble in alcohol and in  propylene glycol. A solution in ethanol is dextrorotatory and a solution in ethyl acetate is laevorotatory.

general info:Chloramphenicol  is a bacteriocidal antimicrobial. It is considered a prototypical broad-spectrum antibiotic, alongside the tetracyclines.

General introduction: 
Chloramphenicol is effective against a wide variety of Gram-positive and Gram-negative bacteria, including most anaerobic organisms. Due to resistance and safety concerns, it is no longer a first-line agent for any indication in developed nations, although it is sometimes used topically for eye infections; nevertheless, the global problem of advancing bacterial resistance to newer drugs has led to renewed interest in its use.In low-income countries, chloramphenicol is still widely used because it is exceedingly inexpensive and readily available.

The most serious adverse effect associated with chloramphenicol treatment is bone marrow toxicity, which may occur in two distinct forms: bone marrow suppression, which is a direct toxic effect of the drug and is usually reversible, and aplastic anemia, which is idiosyncratic (rare, unpredictable, and unrelated to dose) and generally fatal.

CharactersFine, white to grayish-white or yellowish white, needle-like crystals or elongated plates.Qualified
Melting range149°C~153°C149.0~151.5°C
Specific rotation +18.5 ~ +20.0+19.60°
CrystallinityMeets the requirementsQualified
Chromatographic purityIndividual impurity≤0.5%,Total impurities≤2%Qualified
Residual solventsMethanol≤0.3%0.00%
Methyl dichloroacetate≤0.5%0.00%
Benzoic aldehyde≤0.5%0.00%


kept in a light-proof,well-colsed,dry and cool place.