| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Characteristics | White crystalline powder | Conforms |
| Identification | IR Absorption | Conforms |
| UV Absorption | Conforms | |
| Loss on drying | ≤0.5% | 0.07% |
| Residue on ignition | ≤0.1% | 0.01% |
| Chloride | ≤0.035% | <0.035% |
| Selenium | ≤0.003% | <0.003% |
| Heavy metals | ≤0.001% | <0.001% |
| Assay | 98.0%~102.0% | 99.50% |
| Conclusion: The Product Conforms to USP/BP/EP. |
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