
| Item | standard | |
| appearance | White to off-white crystalline powder | |
| Melting point | 73-78°C | |
| Acidity | 18.0-19.3ml | |
| Potency, IU/g | 1185IU | 1210IU | 
| d-α tocopheryl acid succinate, MIN | 96%-102% | 96%-102% | 
| Heavy metals (as Pb) | 10ppm (MAX) | |
| Specific rotation, [a]d25, degrees | +24 (MIN) | |
Packaging: cardboard drum(25kg)
Storage: Product should be preserved in tightly closed containers protected from light, heat, and air.
Shelf life: 24 months