Synonyms: Pyromellitic acid, di(2-phenyl-2-imidazoline) salt;Benzene-1,2,4,5-tetracarboxylic acid, compound with 4,5-dihydro-2-phenyl-1H-imidazole (1:2);benzene-1,2,4,5-tetracarboxylic acid; 2-phenyl-4,5-dihydro-1H-imidazole;1,2,4,5-Benzenetetracarboxylic acid, compd. with 4,5-dihydro-2-phenyl-1H-imidazole (1:2);