Complaint
| Test Item | Specifications |
| Sensory test | off-white crystalline or crystalline powder, no peculiar smell |
| Assay | ≥98.0% |
| Loss on drying | ≤0.5% |
| PH | 4.0~7.0 |
| Residue on ignition | ≤0.5% |
| Specific rotation[α]D25 | +26.6°~+28.8° |
| Iron salt | ≤0.003% |
| Heavy metals(as Pb) | ≤5mg/kg |
| Arsenin(as in total arsenic) | ≤2mg/kg |
| Mercury(as Hg) | ≤0.1mg/kg |
| Cadmium(as Cd) | ≤2mg/kg |
| Salmonella | Negative |
