| Items | Specifications |
| Anhydride content (%) | 99 MIN |
| Crystallizing point (°C) | 58 MIN |
| Hydroxyl content (%) | 37.5 MIN |
| Molten color (APHA) | 15 MAX |
| Water content (%) | 0.05 MAX |
| Acidity, as formic acid (%) | 0.002 MAX |
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