(S)-2,3-Dihydro-5,7-dihydroxy-2-(4-hydroxyphenyl)-6,8-dimethyl-4-benzopyrone 2,3-Dihydro-5,7-dihydroxy-2-(4-hydroxyphenyl)-6,8-4H-1-benzopyran-4-one 24211-30-1 EINECS 246-080-2 Farrerol