| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White or off-white crystalline powder | Conforms |
| Identification | Meet the requirement | Conforms |
| Melting point | 261℃~263℃ | 262℃ |
| Loss on drying | ≤0.50% | 0.21% |
| Heavy metals | ≤0.002% | 0.001% |
| Related substances | ≤1.0% | 0.23% |
| Assay | ≥99.0% | 99.60% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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