| Tests | Standards | Results |
| Characteristics | A yellowish or orange, crystalline powder | A yellowish crystalline powder |
| Identification | A: Specific optical rotation:+18 to +22 (anhydrous substance) | 19.8° |
| B:HPLC chromatograms:Complies | Complies | |
| C:TLC Identification :Complies | Complies | |
| Related substance | Impurity Anot more than 0.5% | 0.29% |
| Impurity D not more than 0.6% | 0.41% | |
| any other impurity not more than 0.5% | 0.40% | |
| Total of other impurity not more than 1.0% | 0.62% | |
| Water | 5.0--8.5% | 8.1% |
| Residue on ignition | Not more than0.20% | 0.18% |
| Assay(anhydrous basis) | 96.0~102.0% | 98.50% |