| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White or off-white powder | Conforms |
| Melting point | 140.0℃~145.0℃ | 142.5~143.8℃ |
| Total impurities | ≤0.50% | 0.19% |
| The largest single impurity | ≤0.20% | 0.17% |
| Loss on drying | ≤0.50% | 0.15% |
| Assay | ≥99.5% | 99.81% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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