| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | Almost or off-white crystalline powder | Conforms |
| Identification | IR | Conforms |
| Water | ≤0.50% | 0.14% |
| Residue on ignition | ≤0.50% | 0.10% |
| Melting point | 227~235℃ | 232~234℃ |
| Heavy metals | ≤20ppm | <20ppm |
| Related substances | Any impurity ≤0.50% | 0.18% |
| Total impurity ≤1.00% | 0.89% | |
| Assay | ≥99.0% | 99.12% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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