| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | Colorless crystals white crystalline powder | Conforms |
| Melting point | 125.0℃~128.0℃ | 127.0℃ |
| Sulfate(SO4) | ≤0.024% | <0.024% |
| Salicylic Acid | ≤0.10% | <0.10% |
| Residue on ignition | ≤0.10% | 0.08% |
| Loss on drying | ≤0.5% | 0.23% |
| Assay | 98.0%~102.0% | 99.50% |
| Conclusion: The Product Conforms to BP/USP. |
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