
| Item | Specification | Result |
| Appearance | white to off-white powder | pass |
| Identification | The retention time of the major peak isconfirm to the RS |
pass |
| Loss on Drying | Not more than 0.5% | 0.33% |
| Assay(HPLC) | Not less than 98.0% | 99.28% |
| Ignition residue | Not more than 0.1% | pass |
| Heavy metal | Not more than 20 ppm | pass |
