| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White or yellowish crystals or powder | Conforms |
| Identification | ABCD shall comply with standard | Conforms |
| Melting point | 197℃~200℃ | 199℃ |
| Loss on drying | ≤0.50% | 0.04% |
| Residue on ignition | ≤0.10% | 0.02% |
| Related substances | ≤0.50% | 0.16% |
| Heavy metal | ≤20ppm | ＜20ppm |
| Selenium | ≤30ppm | ＜30ppm |
| Assay(dried basis) | 99.0%~101.0% | 99.80% |
| Conclusion: The Product Conforms to USP/BP/EP. |
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