| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White or off-white powder | Confirms |
| Identification | Meets the requirements | Confirms |
| Optical rotation | +24.5°~+27.5° | +26.2° |
| Loss on drying | ≤6.50% | 2.05% |
| Heavy metals | ≤10ppm | <10ppm |
| Assay | ≥98.0% | 99.10% |
| Conclusion: The Product Conforms to USP. |
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