3,5,3'-Trihydroxy-6,7,8,4'-tetramethoxyflavone 3,6,7,8-Tetramethoxy-3',4',5-trihydroxyflavone 4H-1-Benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-5-hydroxy-3,6,7,8-tetramethoxy- 5,3',4'-Trihydroxy-3,6,7,8-tetramethoxyflavone 81943-52-4 85338-85-8 BRN 4336877 FLAVONE, 3,6,7,8-TETRAMETHOXY-3',4',5-TRIHYDROXY- MS/434 NSC 333052