1-(2-Carboxylatoethyl)-2-heptyl-4,5-dihydro-3-(2-hydroxyethyl)-1H-imidazolium 1-(2-Hydroxyethyl)-3-carboxyethyl-2-heptyl-2-imidazoline 1H-Imidazolium, 1-(2-carboxyethyl)-2-heptyl-4,5-dihydro-3-(2-hydroxyethyl)-, inner salt 70776-59-9 EINECS 274-872-8