| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White crystalline powder | Conforms |
| Identification | Meet the requirement | Conforms |
| Melting point | 195℃~201℃ | 197℃ |
| Specific rotation | -0.10°~+0.10° | +0.02° |
| Loss on drying | ≤0.50% | 0.11% |
| Residue on ignition | ≤0.20% | 0.07% |
| Heavy metals | ≤0.002% | 0.001% |
| Assay | 98.0%~102.0% | 99.50% |
| Conclusion: The Product Conforms to USP/EP. |
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