| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White to off-white crystalline powder | Conforms |
| Melting point | 145℃~147℃ | 146℃ |
| Loss on drying | ≤0.2% | 0.11% |
| Total impurities | ≤0.5% | 0.29% |
| Heavy metals | ≤20ppm | 1ppm |
| Assay(HPLC) | ≥99.0% | 99.21% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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