(S)-2,3-Dihydro-5,7-dihydroxy-2-(2-hydroxy-4-methoxyphenyl)-6,8-dimethyl-4H-1-benzopyran-4-one 154320-34-0 2'-Hydroxymatteucinol 4H-1-Benzopyran-4-one, 2,3-dihydro-5,7-dihydroxy-2-(2-hydroxy-4-methoxyphenyl)-6,8-dimethyl-, (S)-