| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White or almost white crystalline powder | Conforms |
| Identification | Meet the requirement | Conforms |
| Specific rotation | +285°~+300° | +288.5° |
| Sulfates | ≤0.1% | 0.03% |
| Loss on drying | ≤0.5% | 0.07% |
| Heavy metals | ≤0.002% | <0.002% |
| Assay | 97.0%~102.0% | 99.89% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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