Tests
Standards
Characters
A bright-red, crystalline powder
Solubility
Slightly soluble in water, soluble in methanol, slightly soluble in acetone and in ethanol.
Identification
A,B,C
pH
4.5-6.5
Bulk Density(g/ml)
0.5
Related substances
Rifampicin quinone:1.5%max
Any other impurity:1.0%max
Sum of impurities:3.5%max
Heavy metals
20ppm max
Loss on drying
1.0%max
Sulphated ash
0.1%max
Assay(on dry basis)
97.0%-102.0%