5,6-bis(4-methylphenyl)-2,3-dihydropyrazine

2-(4,5-dihydro-1H-imidazol-2-yl)-4,5-dihydro-1H-imidazole

2-[4-(4,5-dihydro-1H-imidazol-2-yl)butyl]-4,5-dihydro-1H-imidazole

N-(2-胍乙基)胍

N,N'-二(2-羟基-alpha-甲基苄亚基)乙二胺