| Item | Standard | Result |
| Appearance | White solid | Qualified |
| Assay (%) | ≥99 | 99.7 |
| Melting point (℃) | 125-130 | 125-128 |
| Loss on drying | ≤0.5 | 0.25 |
| Item | Standard | Result |
| Appearance | White solid | Qualified |
| Assay (%) | ≥99 | 99.7 |
| Melting point (℃) | 125-130 | 125-128 |
| Loss on drying | ≤0.5 | 0.25 |