Scientific Names: (3S)-Isoflavan-4,7′-diol, (3S)-3-(4-Hydroxyphenyl)-3,4-dihydro-2H-1-benzopyran-7-ol
Equol is categorized as a polyphenol, a flavonoid, and an isoflavonoid within the isoflavane subclass. It is a phytoestrogen. It is metabolized from daidzein by bacterial flora in the intestines.