维生素E,即α—生育酚,是一种脂溶性维生素,广泛存在于植物油(豆油、玉米油、棉籽油及红花油等)及其制品中。在自然界,为α、β、γ及δ的混合物,但以α—生育酚为主,含量在90％以上。1936年首由Evans从小麦芽胚的非皂化部分提出,至1938年始确定其化学结构。长期以来,为临床应用较广泛的药物。近年来,随着对它作用机理研究的进展,其临床应用范围亦日趋广 Vitamin E, alpha-tocopherol, is a fat-soluble vitamin widely found in vegetable oils (soybean, corn, cottonseed, safflower, etc.) and their products. In nature, as a mixture of α, β, γ and δ, but the main α-tocopherol content of 90% or more. Evans was first introduced in 1936 from the non-saponified part of wheat germ, and by the year 1938 its chemical structure was determined. For a long time, the clinical application of a wider range of drugs. In recent years, with the progress of research on its mechanism of action, its clinical application is also becoming increasingly widespread