| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White crystalline powder | Conforms |
| Melting point | 180℃~183℃ | 182℃ |
| Loss on drying | ≤0.5% | 0.18% |
| Residue on ignition | ≤0.3% | 0.01% |
| Heavy metals | ≤0.001% | 0.0005% |
| Related substances | ≤0.5% | 0.04% |
| Assay | ≥99.0% | 99.80% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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