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Metronidazole
| ITEMS | LIMIT |
| DESCRIPTION | White to pale yellow,odoress crystals or crystalline powder SOLUBILITY |
| Sparingiy soluble in water and in alcohol, slightly soluble in ether and in chloroform | |
| Identification | |
| A: IR | |
| B: UV | |
| Melting range | 159-163℃ |
| Loss on drying | 0.5% MAX |
| Residue on ignition | 0.1% MAX |
| Heavy Metal | 0.005%MAX |
| Tapped density | 0.50-0.75G/ML |
| Bulk density | 0.65-0.85G/ML |
| Related substances | Impurity |
| 0.1MAX | |
| Total impurity | 0.2MAX |
| Non-basic substances | A 1g portion dissolves completely in 10ml of dilute chlorhydric acid (1 in 2) |
| Microorganism test | |
| Aerobic count | NMT 30 ufc/g |
| Mold and yeast | NMT 10 ufc/g |
| Pathogens | NO |
| Chromatographic purity | COMPLY |
| Residual solvents as Ethanediol | ≤620PPM |
| Assay | 99.0%-101.0% C6H9N3O3 |
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