(3S)-3-(4-hydroxyphenyl)chroman-7-ol (3S)-3-(4-hydroxyphenyl)-7-chromanol 531-95-3 C14131 Equol EINECS 208-522-2 (S)-3,4-Dihydro-3-(4-hydroxyphenyl)-2H-1-benzopyran-7-ol 3,4-Dihydro-3-(4-hydroxyphenyl)-(S)-2H-1-benzopyran-7-ol