Product name: Rifaximin 
Chemical name: 4-deoxy-4'-methylpyrido【1',2'-1,2】imidazo【5,4-C】rifamycin S
VManufacturers' Codes: L-105; L-105SV; a-0817185 
Molecular Formula: C43H51N3O11 
Molecular Weight: 785.88. 
CAS : 80621-81-4 
Property: This product is orange-red powder, soluble in ethanol, ethyl acetate, chloroform and toluene. Insoluble in water. M. P. 200-205'C. 
Indications: 
Gram positive and negative. Acute and chronic intestinal infections caused by aerobic and anaerobic bacteria; diarrhea syndrome; 
diarrhea caused by changes in intestinal flora (colonitis, antibiotic-induced enterocolitis, traveller's diarrhea); preoperative and postoperative bowel Prevention of medication; excessive blood ammonia, portal system encephalitis, liver dysfunction. 
Storage conditions: room temperature, protected from light and moisture.