Specification:
| Appearance | Slightly yellow powder | Slightly yellow powder |
| Assay (%) | ≥99 | 99.57 |
| Melting point (℃) | 71-74 | 72.5-73.3 |
| Acid value (mg KOH/g) | ≤1.0 | 0.8 |
| Ash (%) | ≤0.1 | 0.08 |
| Appearance | Slightly yellow powder | Slightly yellow powder |
| Assay (%) | ≥99 | 99.57 |
| Melting point (℃) | 71-74 | 72.5-73.3 |
| Acid value (mg KOH/g) | ≤1.0 | 0.8 |
| Ash (%) | ≤0.1 | 0.08 |