| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | Almost white or pale yellow crystalline powder | Conforms |
| Loss on drying | ≤0.50% | 0.24% |
| Sulphate ash | ≤0.10% | 0.06% |
| Heavy metals | ≤20ppm | <20ppm |
| Assay | 99.0%~101.0% | 99.91% |
| Conclusion: The Product Conforms to USP/EP. |
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