CAS number： 70458-96-7
Molecular formula： C16H18FN3O3
molecular weight： 319.3342
Chemical structure：
| Product name | Norfloxacin | |
| Expiry time | 4 years | |
| TEST | SPECIFICATION | RESULT |
| Description | white to pale yellow crystalline powder | Complies |
| Identification | shall comply with USP34 test A and B | Complies |
| Loss on drying | ≤1.0% | 0.2% |
| Residue on ignition | ≤1.0% | 0.05% |
| Heavy metals | ≤0.0015% | Complies |
| chromatographic | The sum of all impurities’peaks is not more than 0.5% | Complies |
| Assay | 99.0%－101.0% | 99.6% |
Conclusion: Complies with USP34 | ||
