Synonyms: 1H-Imidazolium, 1-(2-(bis(2-carboxyethyl)amino)ethyl)-3-(carboxymethyl)-2-heptyl-4,5-dihydro-, inner salt;1-(N,N-Bis(carboxyethyl)amino)ethyl-2-heptyl-3-carboxymethylimidazoline, inner salt;1H-Imidazolium, 1-(2-(bis(2-carboxyethyl)amino)ethyl)-3-(carboxymethyl)-2-heptyl-4,5-dihydro-, hydroxide, inner salt;Dihydrogen 1-(2-(bis(2-carboxylatoethyl)amino)ethyl)-3-(carboxylatomethyl)-2-heptyl-4,5-dihydro-1H-imidazolium;(1-{2-[bis(2-carboxyethyl)amino]ethyl}-2-heptyl-4,5-dihydro-1H-imidazol-3-ium-3-yl)acetate (non-preferred name)