| Item | Standard | Result |
| Appearance | White or almost white needle crystal,no odor,freely soluble in water,no visible impurities | Conform |
| Content (%) | 99.0-102.0 | 99.377 |
| Water (%) | ≤0.5 | 0.04 |
| Sulfate ash (%) | ≤0.1 | 0.01 |
| Specific rotation (°) | +102.0-+105.0 | +104.8 |
| Melting point (℃) | 154.0-160.0 | 154.3-155.2 |
| Chloride (%) | ≤0.005 | Conform |
| Sulfate (%) | ≤0.005 | Conform |
| Pb (mg/kg) | ≤0.4 | Conform |
| Total bacteria count (CFU/g) | ≤1000 | Negative |