2-(3,4-dihydroxyphenyl)-5-hydroxy-3,6-dimethoxy-4-oxo-4H-chromen-7-yl sulfate 4H-1-benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-5-hydroxy-3,6-dimethoxy-7-(sulfooxy)-, ion(1-) Centaradixin InChI=1/C17H14O11S/c1-25-16-11(28-29(22,23)24)6-10-12(13(16)20)14(21)17(26-2)15(27-10)7-3-4-8(18)9(19)5-7/h3-6,18-20H,1-2H3,(H,22,23,24)/p-