1178-24-1 3,3',4',5,6,7,8-Heptamethoxyflavone 3,5,6,7,8,3',4'-Heptamethoxyflavone 3-Hptmf 4H-1-Benzopyran-4-one, 2-(3,4-dimethoxyphenyl)-3,5,6,7,8-pentamethoxy- Hepta-3