Rifamycin sodium salt

Appearance: Red crystalline fine powder Assay: 900 I.U.mg Min. Identification: 1) Maximum absorption is at the wavelength of 223nm, 314nm, 445 nm. Absorption degree ratio at 314nm and 445nm is 1.55~1.80 2) IR absorption spectrum complies with one of standard sample 3) It appears flame reaction of sodium salt PH: 6.5-8.0 Absorption coefficient: 190-210 Rifamycin B: 0.5% max. Rifamycin S: 2.0% max. Other related substance: 2.0% max. Heavy metal: 10ppm max. Moisture: 12.0-17.0% Bacterial endotoxins: 0.50 I.U./mg max. Abnormal toxicity test (ATT): Complies Package: 25kg/fibre drum