| Items | Technical Index |
| Appearance | White Crystalline Granule |
| Main Content | 99.0-101.0% |
| Melting Point | 126.0-131.0ºC |
| Moisture | ≤0.5% |
| PH | 5.0-7.0 |
| Solubility Test(20%Water Solution) | Clear or nearly clear solution |
| Appearance of Solution(20% in CH3OH) | Clear or nearly clear solution |
| Impurity(%) | <0.3 |