| Items | Limits | Test results | 
| Description | White to light yellow crystals or crystalline particle | Conforms | 
| Assay | ≥98.0% | 99.6% | 
| Specific Rotation | +12.0°~+14.0° | +12.1° | 
| PH | 7.0~8.5 | 7.52 | 
| Loss on drying | ≤0.50% | 0.10% | 
| Residue on lgnition | ≤0.50% | 0.10% | 
| Conclusion | Passed test according to the Standard of Factory standard. | |
 
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