| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White or almost white powder | Conforms |
| Melting point | 205℃~208℃ | 207.1℃ |
| Loss on drying | ≤0.2% | 0.12% |
| Heavy metals | ≤10ppm | 1ppm |
| PH | 1.2~1.8 | 1.6 |
| Assay(HPLC) | 99.0%~100.5% | 99.81% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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