3-(3,4-dihydroxyphenyl)-6,8-dihydroxyisochroman-1-one 3-(3,4-dihydroxyphenyl)-6,8-dihydroxy-isochroman-1-one 3-(3,4-dihydroxyphenyl)-6,8-dihydroxy-1-isochromanone 147517-07-5 Thunberginol D