13459-07-9 4-18-00-03476 (Beilstein Handbook Reference) 4H-1-Benzopyran-4-one, 5,7-dimethoxy-3-hydroxy-2-(3',4'-dihydroxyphenyl)- 5,7-Di-O-methylquercetin 5,7-Dimethoxy-3,3',4'-trihydroxyflavone BRN 0344074 FLAVONE, 5,7-DIMETHOXY-3,3',4'-TRIHYDROXY-