1-(o-Chlorophenyl)biguanide monohydrochloride 19579-44-3 Biguanide, 1-(o-chlorophenyl)-, monohydrochloride Imidodicarbonimidic diamide, N-(2-chlorophenyl)-, monohydrochloride N-(2-Chlorophenyl)-imidodicarbonimidic diamide monohydrochloride N-o-Chlorophenylbiguanide hydrochloride NSC49304