| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White or Slightly yellow crystalline powder | Conforms |
| Identification | Meet the requirement | Conforms |
| Loss on drying | ≤0.5% | 0.01% |
| Residue on ignition | ≤0.3% | 0.15% |
| Heavy metals | ≤0.005% | 0.0004% |
| Organic volatile impurities | ≤0.1% | 0.02% |
| Assay | 97.0%~103.0% | 99.91% |
| Conclusion: The Product Conforms to CP/BP/USP/EP. |
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