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Rifampicin
| ITEMS | LIMIT |
| Identification | Positive |
| Characteristics | A reddish-brown crystalline powder |
| Acidity pH | 4.5-6.5 |
| Related Substances | Rifampicin Quinone≤1.5% |
| Individual peak ≤1.0% | |
| Sum of peaks≤3.5% | |
| Heavy metals | ≤20ppm |
| Loss on drying | ≤1.00% |
| Sulphated ash | ≤0.10% |
| Bulk Density | ≥0.7g/cm³ |
| Crystallinity | |
| Solubility | |
| Total quantity of bacterium | 1000/g max |
| Total quantity of Mould and yeast | 100/g max |
| Escherichis coli/g | Not found in each 1g or 1ml |
| Assay (on dried basis) | 97.0-102.0% |
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