Chinese name: Vitamin E POWDER (DL-Alpha-Tocopheryl Acetate 50%) Nomenclature: 2,5,7,8-Tetramethyl-2-(4,8,12-trimethyltridecanoyl)-6-chromanolactate Structural formula: Molecular formula: C31H52O3 Molecular weight: 472.75 Appearance: off-white or light yellow powder Vitamin E is in a number of different application sectors including functional foods, animal nutrition and cosmetics. Store in cool and dry place. When stored properly, this product has a useful life of 12 months from the day of production.