生育酚是一种脂溶性维生素E。它存在于食物来源中，例如大豆，杏仁油，葵花籽油。生育酚在植物中具有四种同工型，分别是α，β，γ和δ。它由具有不同甲基位置的色原烷醇环组成。D-α生育酚琥珀酸酯又称维生素E琥珀酸酯（VES）。 Tocopherol is a lipid soluble vitamin E. It is present in food sources, such as soybean, almond oil, sunflower oil. Tocopherol has four isoforms in plants, which are α, β, γ and δ. It is composed of a chromanol ring with varied position of methyl group. D-αTocopherol succinate is also known as vitamin E succinate (VES).