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