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Vitamin E (DL-α-Tocopheryl Acetate)
CAS No.: 7695-91-2
Molecular Formula: C31H52O3 Molecular Weight: 472.75
Structural Formula:
Property:
Vitamin E provides antioxidant activity only on the skin (tissue esterases need first to cleave off acetate to form active Vitamin E), potent antioxidant of Vitamin E (protects from damages by reactive oxygen radicals & UV rays), increases SPF, moisturizing and antiaging effect (improves skin surface relief), soothing and anti-inflammatory properties, promotes epithelisation and enzyme activity (faster wound healing).
Specification:
| Item | Index |
| Description | Clear, colourless, slightly greenish - yellow, viscous, oily liquid |
| Identification Optical Rotation Identification Optical Rotation IR TLC Colour Reaction Retention Time,GC |
-0.01o-+0.01o, EP To confirm EP/USP/FCC To confirm EP To confirm USP/FCC To confirm USP/FCC |
| Assay | 96.5%-102.0% EP 96.0%-102.0% USP/FCC |
| Related Substances Impurity A Impurity B Impurity C Impurity D and E Any Other Impurity Total Impurities |
0.5%max. EP 1.5%max. EP 0.5%max. EP 1.0%max. EP 0.25%max. EP 2.5%max. EP |
| Acidity | 1.0ml max.USP/FCC |
| Residual Solvents Isobutyl Acetate |
0.5% max. In house |
| Heavy Metals Pb |
2mg/kg max.,FCC |
| Microbiological Test
Total Aerobic Microbial Couni Total Yeasts and Moulds Count Escherichia Coli |
1000cfu/g max. EP/USP 100cfu/g max. EP/USP n.d./g EP/USP |
| Salmonella Pseudomonas Aeruginosa Staphylococcus Aureus Bile-tolerant Gram-Negative Bacterial |
n.d./10g EP/USP n.d./g EP/USP n.d./g EP/USP n.d./g EP/USP |
| Arsenic | 1mg/kg max. in house |
| Copper | 25mg/kg max. in house |
| Zinc | 25mg/kg max. in house |
Package:
Vitamin E is often used in dermatological products such as skin creams. Some studies have linked tocopheryl acetate to cancer.
Vitamin E is used as an alternative to Tocopherol itself because the Phenolic Hydroxyl group is blocked, providing a less acidic product. Vitamin E 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.
Package and Storage：
Vitamin E is packed in 25KG paper barrel or bag. In order to prevent from insolation and rain, heat and hitting, Vitamin E must be overcovered during transportation. Handle carefully and do not transport it with any harmful and contaminating substances or oxides.
Keyword:
Vitamin E, Acetate, Vitamin E Acetate, Tocopheryl