China Factory Direct Sales Pharmaceutical Raw Material CAS 13292-46-1 Rifiampicin, Find details about China CAS 13292-46-1, Rifiampicin Powder from Factory Direct Sales Pharmaceutical Raw Material CAS 13292-46-1 Rifiampicin
Items of Analysis | Specifications | Results |
Characters | A red-brown crystalline powder; Very slightly soluble in water, freely soluble in chloroform, soluble in ethyl acetate/methanol. | A red-brown crystalline powder; Very slightly soluble in water, freely soluble in chloroform, soluble in ethyl acetate/methanol. |
Identification | Infrared absorption spectrophotometry | Conforms |
Crystallinity | Meets the requirements | Conforms |
pH | 4.5-6.5 | 5.4 |
Related substances | Rifampicin quinone<1.5% | 0.10% |
Any other impurity<1.0% | 0.70% | |
Sum of impurities<3.5% | 2.30% | |
Loss on drying | <2.0% | 0.30% |
Butanol<5000ppm | 2355ppm | |
Residual Solvents | Aceton e<5000ppm | 59ppm |
Dimethylformamide(DMF)<880ppm | Not detected | |
Assay | 95.0%-103.0% | 99.40% |
Bulk density | 0.73g/cm3 | |
Conclusion:The product conforms to the USP 39 |