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Rifaximin 

Molecular Formula:C43H51N3O11

CAS Registry Number:80621-81-4

Synonyms:L 105; L 105(ansamacrolide antibiotic); L 105SV; Rifamycin L 105; Rifamycin L 105SV; Xifaxan; refaximin;

Chemical Properties

Appearance:Red-Orange Crystalline Powder

Molecular Weight:785.87854

Density:1.366 g/cm3

Melting Point:200-205°C(dec)

Storage Temperature:0-6°C

Refractive index:1.633

Solubility:soluble in ethyl alcohol and chloroform

Usage:Non-absorbable semisynthetic Rifamycin antibiotic