21190-08-9 5-(2-Chloroacetylamido)imidazole-4-carboxylic acid ethyl ester monohydrochloride Ethyl 5-(2-chloroacetamido)imidazole-4-carboxylate monohydrochloride Imidazole-4-carboxylic acid, 5-(2-chloroacetamido)-, ethyl ester, monohydrochloride