2-Cyanoguanidine461-58-5100 % similar 1,6-Bis(cyanoguanidino)hexane15894-70-943 % similar N-(4-Cyanophenyl)guanidine5637-42-336 % similar Guanidine, N,N′′′-1,6-hexanediylbis[N′-cyano-, polymer with 1,6-hexanediamine, hydrochloride27083-27-836 % similar Aminoguanidine hydrochloride16139-18-735 % similar Aminoguanidinium chloride1937-19-535 % similar 1-Methylguanidine hydrochloride21770-81-035 % similar Methylguanidine hydrochloride22661-87-635 % similar Iminoctadine13516-27-334 % similar Amidinothiourea2114-02-533 % similar Nitroguanidine556-88-730 % similar Metformin657-24-930 % similar