| TESTING ITEMS | SPECIFICATION | RESULTS |
| Appearance | White or almost white crystalline powder | Conforms |
| Identification | Meet the requirement | Conforms |
| Loss on drying | ≤2.5% | 1.25% |
| Residue on ignition | ≤0.1% | 0.05% |
| Sulphated ash | ≤0.1% | 0.06% |
| Related substances | Any single impurity ≤0.1% | ND |
| Total impurities ≤0.2% | 0.04% | |
| Residual solvents | Ethanol ≤5000ppm | 58ppm |
| Dichloromethane ≤600ppm | ND | |
| Tert-butyl methyl ether ≤5000ppm | ND | |
| Assay | 98.5%~ 101.5% | 99.92% |
| Conclusion: The Product Conforms to CP/USP/EP. |
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