异水飞蓟宾Isosilybin，化学式是C25H22O10。

中文名称：异水飞蓟宾

英文别名：2-(2,3-Dihydro-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-1,4-benzodioxin-6-yl)-2,3-dihydro-3,5,7-trihydroxy-4H-1-benzopyran-4-one; 3,5,7-trihydroxy-2-[2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]-2,3-dihydro-4H-chromen-4-one; (2R,3R)-3,5,7-trihydroxy-2-[2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]-2,3-dihydro-4H-chromen-4-one

分子量：482.4362

化学分类：Flavonoids黄酮类

菊科水飞蓟属植物水飞蓟Silybum marianum(L.)Gaertn.的全草及瘦果。