Synonyms: disodium 4,4'-(3-oxo-1,3-dihydro-2-benzofuran-1,1-diyl)bis[5-methyl-2-(propan-2-yl)phenolate];62637-89-2;AC1Q1URJ;AC1L3C7O;Thymolphthalein disodium salt;AR-1I6469;1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxy-2-methyl-5-(1-methylethyl)phenyl)-, disodium salt;1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxy-2-methyl-5-(1-methylethyl)phenyl)-, sodium salt (1:2);disodium 5-methyl-4-[1-(2-methyl-4-oxido-5-propan-2-ylphenyl)-3-oxo-2-benzofuran-1-yl]-2-propan-2-ylphenolate