2 3 6 7 tetrahydroxy 9 10 anthraquinone July 8, 2019 16 32 64 128 2 3-dihydroxyquinoxaline 2-(3 4-dihydroxyphenyl)-3 5 7-trihydroxy-4h-chromen-4-one 2 6-diaminoanthraquinone 2-(2 4-dihydroxyphenyl)-3 5 7-trihydroxy-4h-chromen-4-one 2 6-dihydroxyanthraquinone solubility
