4-(1,3-thiazolo[5,4-b]pyridin-2-yl)benzene-1,2,3-triol
4-(5-methyl-1,3-thiazolo[5,4-b]pyridin-2-yl)benzene-1,2,3-triol
4-(6-methyl-1,3-thiazolo[5,4-b]pyridin-2-yl)benzene-1,2,3-triol
4-(5,6-dimethyl-1H-benzimidazol-2-yl)benzene-1,2,3-triol
bis[(2,3,4-trihydroxyphenyl)methanethione]sulfoxide