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Tocopheryl acetate , also known as vitamin E acetate , is a common vitamin supplement with the molecular formula C 31 H 52 O 3 (for 'α' form). It is the ester of acetic acid and tocopherol (vitamin E). It is often used in dermatological products such as skin creams. Tocopheryl acetate is not oxidized and can penetrate through the skin to the living cells, where about 5% is converted to free tocopherol and provides beneficial antioxidant effects.
Tocopheryl acetate is used as an alternative to tocopherol itself because the phenolic hydroxyl group is blocked, providing a less acidic product with a longer shelf life . It is believed that the acetate is slowly hydrolyzed once it is absorbed into the skin, regenerating tocopherol and providing protection against the sun's ultraviolet rays.
| ITEM | SPECIFICATIONS | RESULTS |
| Appearance | White to almost white powder | Qualified |
| Assay by G.C | 98.0—102.0% | 98.8% |
| Identity | Corresponds | Qualified |
| Infrared spectrum | Meets EP requirement | Qualified |
| Option rotation | -0.01°~ +0.01° | Qualified |
| Density(20°C) | 0.952—0.966g/ml | 0.955g/ml |
| Refractive index(20°C) | 1.494—1.498 | 1.496 |
| Related substances | Impurities A, C: for each impurity ≤ 0.5% Impurity B ≤ 1.5% Sum of impurity D+E ≤ 1.0% Any other impurities: Meet EP requirements Total impurities: ≤ 2.5% | Qualified |
| Absorbance in ethanol: At about 284nm (max) At about 254nm (min) |
42.0—45.0 7.5—9.0 |
44.0 8.8 |
| Acidity | Max.1.0ml of 0.1 N NaOH | 0.04 ml |
| Sulphated ashes | ≤0.1% | 0.03% |
| Heavy metals | ≤10ppm | <5ppm |
| Lead | ≤2ppm | 0.04ppm |
| Arsenic | ≤3ppm | <1ppm |
| Free tocopheryl | ≤1.0% | 0.35% |
| Organic volatile impurities | Meets USP requirements | Qualified |
| Conclusion: The product complies with USP/BP/EP/FCC standard | ||
Packaing Detail:20,25kg/fiber drum vitamin e alpha tocopherol powder
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| CAS No.: |
58-95-7
|
Other Names: |
vitamin e d-alpha tocopheryl acetate
|
MF: |
C31H52O3
|
| EINECS No.: |
231-710-0
|
Place of Origin: |
China (Mainland)
|
Type: |
food,feed additive
|
| Grade Standard: |
Feed Grade,Food Grade
|
Usage: |
Animal Pharmaceuticals
|
Brand Name: |
Labeyond
|
| Purity: |
99.0%
|
Trade Name: |
Vitamin E Acetate oil
|
Appearance: |
Slightly yellow, clear, viscous oil
|
| M.W: |
472.734g/mol
|
Density: |
0.952-0.966g/ml
|
Refractive index: |
1.494-1.498
|
| Option roration: |
-0.01°-+0.01°
|
Application: |
Food additives,feed additives
|