2-(3,4-Dimethoxyphenyl)-5,7-dimethoxy-4H-1-benzopyran-4-one 3',4',5,7-Tetramethoxyflavone 3',4',5,7-Tetramethyl-luteolin 4H-1-Benzopyran-4-one, 2-(3,4-dimethoxyphenyl)-5,7-dimethoxy- 5,7,3',4'-Tetramethylluteolin 855-97-0 Luteolin tetramethyl ether Tetramethoxyluteolin