4H-1-Benzopyran-4-one, 5,7-dihydroxy-2-(4-hydroxyphenyl)-8-methoxy- 5,7,4'-Trihydroxy-8-methoxyflavone 5,7-Dihydroxy-2-(4-hydroxyphenyl)-8-methoxy-4H-1-benzopyran-4-one 57096-02-3