| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White or almost white fine powder | Conforms |
| Appearance of solution | Clear | Clear |
| Identification | Positive | Positive |
| Melting point | 147℃~151℃ | 150℃ |
| Loss on drying | ≤0.1% | 0.05% |
| Heavy metals | ≤20ppm | 2ppm |
| Sulphated ash | ≤0.1% | 0.04% |
| Related substances | Any impurity: ≤0.2% | 0.02% |
| Sum of all impurities: ≤0.6% | 0.10% | |
| Assay | 99.0%~101.0% | 99.40% |
| Conclusion: The Product Conforms to CP//JP/EP. |
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