| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White or almost white powder | Conforms |
| Identification | Meet the requirement | Conforms |
| Melting point | 102℃~104℃ | 103℃ |
| Specific rotation | -24.0°~-29.0° | -26.0° |
| Loss on drying | ≤5.50% | 1.81% |
| Sulphated ash | ≤0.10% | 0.04% |
| Heavy metals | ≤0.002% | 0.001% |
| Related substances | ≤1.0% | 0.24% |
| Assay | 98.5%~102.0% | 99.20% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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