3-Methoxy-5,7,8-trihydroxyflavone 33910-28-0 4-18-00-03279 (Beilstein Handbook Reference) 4H-1-Benzopyran-4-one, 3-methoxy-2-phenyl-5,7,8-trihydroxy- (9CI) 5,7,8-Trihydroxy-3-methoxyflavone BRN 0312039 FLAVONE, 3-METHOXY-5,7,8-TRIHYDROXY-