2-(4-Methoxyphenyl)-5,6,7,8-tetramethoxy-4H-1-benzopyran-4-one 4',5,6,7,8-Pentamethoxyflavone 481-53-8 4H-1-Benzopyran-4-one, 2-(4-methoxyphenyl)-5,6,7,8-tetramethoxy- 4H-1-Benzopyran-4-one, 5,6,7,8-tetramethoxy-2-(4-methoxyphenyl)- 4H-1-Benzopyran-4-one, 5,6,7,8-tetramethoxy-2-(p-methoxyphenyl)- 5,6,7,8,4'-Pentamethoxyflavone 5,6,7,8-Tetramethoxy-2-(4-methoxyphenyl)-4-benzopyrone 5-18-05-00491 (Beilstein Handbook Reference) AI3-23869 BRN 0351695 EINECS 207-570-1 Flavone, 4',5,6,7,8-pentamethoxy- (7CI,8CI) NSC 53909 Pentamethoxyflavone Ponkanetin Tangeretin Tangeretin (6CI)