Specification:
| Appearance | Pale yellow powder | Conform |
| Assay (%) | ≥98.5 | 99.24 |
| Melting point (℃) | 127.0-135.0 | 131.3-132.2 |
| Loss on drying (%) | ≤0.2 | 0.14 |
| Appearance | Pale yellow powder | Conform |
| Assay (%) | ≥98.5 | 99.24 |
| Melting point (℃) | 127.0-135.0 | 131.3-132.2 |
| Loss on drying (%) | ≤0.2 | 0.14 |