1-Ethoxyethylideneammonium chloride 1000-84-6 2208-07-3 AI3-51324 Acetimidic acid, ethyl ester, hydrochloride Acetimidoethyl ether hydrochloride EA hydrochloride EINECS 218-631-7 Ethanimidic acid, ethyl ester, hydrochloride Ethyl acetimidate hydrochloride Ethyl iminoacetate hydrochloride NSC 139094 NSC 97328