51031-80-2

7-O-(beta-hydroxyethyl)quercetin 2-(3,4-dihydroxy-phenyl)-3,5-dihydroxy-7-(2-hydroxy-ethoxy)-chromen-4-one 4H-1-Benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-7-(2-hydroxyethoxy)-