Synonyms: Flavone,3-hydroxy-3',4',5,7-tetramethoxy- (7CI,8CI);3-Hydroxy-3',4',5,7-tetramethoxyflavone;3-Hydroxy-5,7,3',4'-tetramethoxyflavone; 3',4',5,7-Tetra-O-methylquercetin;3',4',5,7-Tetramethylquercetin; Averionol; NSC 102049; Quercetin3',4',5,7-tetramethyl ether; Quercetin 5,7,3',4'-tetramethyl ether