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。
N,N'-Di-Boc-guanidine
(R)-2-((R)-2-Acetamido-3-(4-hydroxyphenyl)propanamido)-N-((R)-1-amino-1-oxo-3-phenylpropan-2-yl)-5-guanidinopentanamide
Pal-Gly-Gln-Pro-Arg-OH
1H-1,2,4-Triazole-1-carboximidamide hydrochloride
1-(2-Methoxyethyl)guanidine
4-Methylpiperazine-1-carboximidamide
1,3-Di-Boc-2-(trifluoromethylsulfonyl)guanidine
2-(-1,5-Bis(5-nitrofuran-2-yl)penta-1,4-dien-3-ylidene)hydrazinecarboximidamide hydrochloride
Guanylthiourea
1-(3-Chlorophenyl)biguanide hydrochloride
1-(4-Chlorophenyl)biguanide hydrochloride
Sodium N-carbamimidoyl-N-methylglycinate dihydrogen phosphate tetrahydrate
(S)-Ethyl 2-dodecanamido-5-guanidinopentanoate hydrochloride
1-(4-Methylquinazolin-2-yl)guanidine hydrochloride
2-(4-(((2-Cyanoethyl)thio)methyl)thiazol-2-yl)guanidine
N,N'''-1,6-Hexanediylbis(N'-cyanoguanidine)
N-Phenylimidodicarbonimidic diamide hydrochloride
(S)-2-((tert-Butoxycarbonyl)amino)-5-(3-((2,2,4,6,7-pentamethyl-2,3-dihydrobenzofuran-5-yl)sulfonyl)guanidino)pentanoic acid
4-Guanidino-2-methoxybenzoic acid
1-(Benzo[d]Thiazol-2-yl)guanidine
Morpholine-4-carboximidamide hydrobromide
1-(4-Cyanophenyl)guanidine hydrochloride
N,N-Dimethylimidodicarbonimidic diamide
1,1-Dimethylguanidine Sulfate(2:1)
N-Boc-1-Guanylpyrazole
1,1-Dimethylguanidine
N,N-Diphenylguanidine Monohydrobromide
N-Carbamimidoylacetamide
4-Guanidinobenzoic acid hydrochloride
