2-(3,4-Dimethoxyphenyl)-7-hydroxy-4H-chromen-4-one 3', 4'-Dimethoxy-7-hydroxyflavone 33513-36-9 4H-1-Benzopyran-4-one, 2-(3, 4-dimethoxyphenyl)-7-hydroxy- 7-Hydroxy-3',4'-dimethoxy flavone 7-Hydroxy-3,4'-dimethoxy flavone AIDS-126719 AIDS126719 Flavone, 7-hydroxy-3',4'-dimethoxy- NSC123383