| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White crystalline powder | Conforms |
| Identification | Meet the requirement | Conforms |
| Melting point | 177℃~181℃ | 180℃ |
| Loss on drying | ≤0.5% | 0.23% |
| Residue on ignition | ≤0.1% | 0.02% |
| Heavy metals | ≤0.001% | 0.0001% |
| Related substances | Single impurity ≤0.2% | 0.03% |
| Total impurities ≤0.5% | 0.08% | |
| Assay | 99.0%~101.0% | 99.98% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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