The molecule is a quercetin bissulfate having the sulfo groups at the 3- and 4'-positions. It is a trihydroxyflavone and a quercetin bissulfate. It is a conjugate acid of a quercetin-7-olate 3,4'-bissulfate(3-).
[5,7-dihydroxy-2-(3-hydroxy-4-sulfooxyphenyl)-4-oxochromen-3-yl] hydrogen sulfate