Synonyms: dipotassium(3-oxo-1,3-dihydro-2-benzofuran-1,1-diyl)dibenzene-4,1-diyl disulfate;205237-62-3;AC1Q1TT1;AC1L2W80;EINECS 257-849-7;AR-1I6211;1(3H)-Isobenzofuranone, 3,3-bis(4-(sulfooxy)phenyl)-, dipotassium salt;Dipotassium 1-oxo-3H-isobenzofuran-3,3-diylbis(p-phenylene) bis(sulphate);1(3H)-Isobenzofuranone, 3,3-bis(4-(sulfooxy)phenyl)-, potassium salt (1:2);dipotassium (3-oxo-1,3-dihydro-2-benzofuran-1,1-diyl)dibenzene-4,1-diyl disulfate;dipotassium [4-[3-oxo-1-(4-sulfonatooxyphenyl)-2-benzofuran-1-yl]phenyl] sulfate