Synonyms: tetrasodium 4,4'-carbonylbisphthalate;4,4'-Carbonylbisphthalic acid tetrasodium salt;1,2-Benzenedicarboxylic acid, 4,4'-carbonylbis-, sodium salt (1:4);1,2-Benzenedicarboxylic acid, 4,4'-carbonylbis-, tetrasodium salt;4,4'-Carbonyldiphthalic acid, tetrasodium salt;Einecs 268-565-8;Tetrasodium 4,4'-carbonyldiphthalate