Chloramphenicol / levamycin

English name：Chloramphenicol；D(-)-threo-2,2-Dichloro-N-[β-hydroxy-α-(hydroxymethyl)-β-(4-nitrophenyl)ethyl]acetamide；；D-(-)-threo-2-Dichloroacetamido-1-(4-nitrophenyl)-1,3-propanediol

Other names: levamycin;  D (-) - su-1-p-nitrophenyl-2-dichloroacetylamino-1,3-propanediol; D-soviet style - (-) -n-[ α- (hydroxymethyl)- β- Hydroxy p-nitrophenylethyl]-2,2-dichloroacetamide

CAS No.: 56-75-7

C11H12Cl2N2O5=323.13

Grade: USP grade

Content: 97 ~ 103%

Specific rotation: +17 ~ +20 °

Melting point: 149 ~ 153 ℃

PH(2.5%，water)@25℃：4.5～7.5

Physicochemical properties: white or yellowish needle shaped long piece crystal or crystalline powder, a broad-spectrum antibacterial antibiotic, slightly soluble in water (2.5mg/ml, 25 ℃), slightly soluble in propylene glycol (150.8mg/ml), easily soluble in methanol, ethanol, butanol, ethyl acetate, acetone, insoluble in ether, benzene, petroleum ether, vegetable oil. Extremely bitter taste

Purpose: biochemical research. The peptidyl transferase step inhibits translation on the 50S ribosomal subunit.

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