Synonyms: 1H-Imidazolium, 1-(2-(carboxymethoxy)ethyl)-1-(carboxymethyl)-4,5-dihydro-2-propyl-, hydroxide, sodium salt (1:1:2);1H-Imidazolium, 1-(2-(carboxymethoxy)ethyl)-1-(carboxymethyl)-4,5-dihydro-2-propyl-, hydroxide, disodium salt;Disodium 1-(2-(carboxylatomethoxy)ethyl)-1-(carboxylatomethyl)-4,5-dihydro-2-propyl-1H-imidazolium hydroxide;sodium hydroxide {1-[2-(carboxylatomethoxy)ethyl]-2-propyl-4,5-dihydro-1H-imidazol-1-ium-1-yl}acetate (2:1:1)