2-(3,4-Dimethoxyphenyl)-5,7-dihydroxy-4H-chromen-4-one 4712-12-3 4H-1-Benzopyran-4-one, 2-(3, 4-dimethoxyphenyl)-5,7-dihydroxy- 5,7-Dihydroxy-3', 4'-dimethoxyflavone AIDS-126794 AIDS126794 Flavone, 5,7-dihydroxy-3',4'-dimethoxy- Kampferol-3, 4'-dimethyl ether NSC128305