| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Characteristics | White or almost white crystalline powder | Conforms |
| Identification | Meet the requirements | Conforms |
| Specific rotation | -17.0°~-15.3° | -16.7° |
| Loss on drying | ≤1.0% | 0.18% |
| Residue on ignition | ≤0.1% | 0.06% |
| Heavy metals | ≤20ppm | <20ppm |
| Related substance | Any other impurity ≤0.1% | 0.01% |
| Total impurities ≤0.5% | 0.01% | |
| Assay | 98.5%~101.5% | 99.91% |
| Conclusion: The Product Conforms to CP/USP/EP. |
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