Tocopheryl acetate, also known as vitamin E acetate, is a common vitamin supplement with the molecular formula C31H52O3. 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.
NAME: |
Tocopheryl Acetate |
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CAS NO.: |
7695-91-2 |
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EINECS NO.: |
231-710-0 |
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CHEMICAL FORMULA: |
C31H52O3 |
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FORMULA WEIGHT: |
472.74 |
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HS CODE: |
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SPECIFICATION: |
Items |
Specifications |
White to Light yellow Powder |
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Density(20) |
0.952 ~ 0.966g/mL |
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Refractive Index(20) |
1.494 ~ 1.498 |
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Heavy Metals (as Pb) |
≤10ppm |
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Acidity |
≤1.0mL of 0.1N NaOH |
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Sulphated Ashes |
≤.1% |
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Arsenic |
≤3ppm |
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Lead (Pb) |
≤10ppm |
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Free Tocopherol |
≤1.0% |
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Assay by G.C. |
96.0 ~ 102.0% |
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Identification |
Meets the requirements |
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At about 284nm(max) |
42.0 ~ 45.0 |
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At about 254nm(min) |
7.5 ~ 9.0 |
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PACKAGING: |
25kg/drum |
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QUANTITY/CONTAINER: |
13MT/20’FCL without pallets; 12MT/20’FCL on pallets |
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HANDLING&STORAGE: |
Store in sealed containers at cool & dry place. Keep away from light, moisture and pest infestation |