4-Morpholinecarboxamide, N-[(2-amidinothio)ethyl]-, monohydrochloride 64048-50-6 Carbamimidothioic acid, 2-[(4-morpholinylcarbonyl)amino]ethyl ester, monohydrochloride Carbamimidothionic acid, 2-[(4-morpholinylcarbonyl)amino]ethyl ester, monohydrochloride N-[(2-Amidinothio)ethyl]-4-morpholinecarboxamide monohydrochloride NSC521162