Specification:
| Appearance | Pale yellow powder | Conform |
| Assay (%) | ≥99.0 | 99.2 |
| Melting point (℃) | 85.0-95.0 | 88.9-92.0 |
| Ash (%) | ≤0.1 | 0.01 |
| Volatiles (%) | ≤0.2 | 0.02 |
| Appearance | Pale yellow powder | Conform |
| Assay (%) | ≥99.0 | 99.2 |
| Melting point (℃) | 85.0-95.0 | 88.9-92.0 |
| Ash (%) | ≤0.1 | 0.01 |
| Volatiles (%) | ≤0.2 | 0.02 |