| Testing Items | Specifications | Results |
| Appearance | White or yellowish crystalline powder | Conforms |
| Identification | Meet the requirement | Conforms |
| Melting point | 143℃~145℃ | 144℃ |
| Loss on drying | ≤6.50% | 2.16% |
| Residue on ignition | ≤0.10% | 0.07% |
| Heavy metals | ≤20ppm | <20ppm |
| Assay | 98.5%~101.5% | 99.38% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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