| Items | Standard | Results |
| Description | White crystalline powder | Complies |
| Identification | IR | Conform with standard IR |
| HPLC | Conform with standard HPLC | |
| Reactive | Conform | |
| Solubility | Freely soluble in methanol,acetone,ethanol and tetrahydrofuran.And very soluble in acetonitrile | Complies |
| Total Impurity | max.0.5% | 0.18% |
| Total Unspecified Impurity | max. 0.2% | 0.08% |
| Individual unspecified impurlty | max. 0.1% | 0.05% |
| Related compound B | max. 0.2% | 0.07% |
| Related compound C | max. 0.2% | 0.04% |
| Related compound D | max. 0.1% | 0.05% |
| Related compound E | max. 0.1% | 0.06% |
| Limit of cyclohexane | max. 0.08% | ND |
| Limit of ethylacetate | max. 0.1% | 0.07% |
| Melting point | 81.0~84.0°C | 82.5~83.2°C |