| TESTING ITEMS | SPECIFICATION | RESULTS |
| Appearance | White or almost white crystalline powder | Conforms |
| Identification | Meet the requirement | Conforms |
| Loss on drying | ≤0.5% | 0.24% |
| Residue on ignition | ≤0.1% | 0.05% |
| Sulphated ash | ≤0.2% | 0.08% |
| Related substances | Impurity A ≤0.3% | 0.13% |
| Impurity B ≤100ppm | 50ppm | |
| Impurity C ≤0.1% | 0.05% | |
| Impurity D ≤0.1% | ND | |
| Impurity E ≤0.1% | ND | |
| Each unspecified impurity ≤0.1% | 0.01% | |
| Total impurities ≤0.5% | 0.18% | |
| Assay | 98.0%~ 102.0% | 99.76% |
| Conclusion: The Product Conforms to CP/USP. |
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