| ITEMS | STANDARDS | RESULTS |
| Appearance | White or off-white crystalline powder | Off-white crystalline powder |
| Identification | By IR | Complies |
| RT under chirality should complies | Complies | |
| Chloride: it gives a reaction of chloride | Complies | |
| Water | 3.0%~4.5% | 3.4% |
| Melting Point | 198.0~202.0ºC | 199.8~200.5ºC |
| Residue on Ignition | ≤0.2% | 0.08% |
| Heavy Metals | ≤10ppm | Complies |
| Related Substances | Individual Impurities:≤0.5% | 0.15% |
| Total Impurities:≤1.0% | 0.22% | |
| Residual Solvent | Dichloromethane ≤0.06% | 0.0066% |
| Acetone ≤0.5% | 0.015% | |
| Ethyl acetate ≤0.5% | 0.0013% | |
| E.E | ≥99.0% | 99.6% |
| Assay (on dry basis) | 98.0%~102.0% | 101.2% |