Vitamin E is fat-soluble vitamin. Several tocopherols have vitamin E activity.
1 International Unit (IU) vitamin E =
= 1.0 mg all-rac-alpha-tocopheryl acetate =
= 0.67 mg RRR-alpha-tocopherol =
= 0.74 mg RRR-alpha-tocopherol acetate
1 alpha-tocopherol equivalent =
= 1 mg d-alpha-tocopherol
molecular weight of all-rac-alpha-tocopheryl acetate: 472.74 grams
molecular weight of RRR-alpha-tocopherol: 430.71 grams
molecular weight of RRR-alpha-tocopherol acetate: 472.75
1 IU vitamin E = 2.115 micromoles all-rac-alpha-tocopheryl acetate
