胍是具有式HNC（NH2）2的化合物。它是在极性溶剂中溶解的无色固体。它是一种用于塑料和炸药生产的强碱。在尿中发现它是蛋白质代谢的正常产物。胍基部分也出现在较大的有机分子中，包括精氨酸的侧链上。
1-(4-Aminobutyl)guanidine sulfate
(S)-2-(5-(Dimethylamino)naphthalene-1-sulfonamido)-5-guanidinopentanoic acid
Morpholine-4-carboximidamide hydrochloride
(S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-6-(3-((2,2,4,6,7-pentamethyl-2,3-dihydrobenzofuran-5-yl)sulfonyl)guanidino)hexanoic acid
Benzyl (imino(1H-pyrazol-1-yl)methyl)carbamate
N,N''-Bis(2-ethylhexyl)-3,12-diimino-2,4,11,13-Tetraazatetradecanediimidamide dihydrochloride
(S)-2-((S)-2-Amino-3-phenylpropanamido)-5-guanidino-N-(naphthalen-2-yl)pentanamide dihydrochloride
1-Benzylguanidine hemisulfate
Tetra-n-butylammonium Di-tert-butylphosphate
Biguanidehydrochloride
1-(o-Tolyl)guanidine
1-(3-Bromophenyl)guanidine
Boc-Guanidine
2-(Hydrazinocarbohydrazonoyl)hydraziniumchloride
1-(2-Methyl-5-nitrophenyl)guanidine nitrate
1-(4-Aminobutyl)guanidine dihydrochloride
1-Butylbiguanide hydrochloride
1,1,2,3,3-Pentamethylguanidine
N-(Diaminomethylene)-4-isopropyl-3-(methylsulfonyl)benzamide
1,1'-Hexamethylenebis[5-(p-chlorophenyl)biguanide] diacetate
Poly (hexamethylene biguanide) hydrochloride
1H-Pyrazole-1-carboximidamide hydrochloride
1-(Bis(dimethylamino)methylene)-5-chloro-1H-benzo[d][1,2,3]triazole-1-ium 3-oxide tetrafluoroborate
2-(4-((4-Guanidinobenzoyl)oxy)phenyl)acetic acid methanesulfonic acid salt
1-Phenylguanidine xcarbonate
Guanidine phosphate
