1	N2H	(4-azanylbutylamino)methanediol	1.000
2	X51	1-[(4-aminobutyl)amino]ethane-1,1-diol	0.900
3	X5A	N-(4-aminobutyl)acetamide	0.800
4	YIV	N-butylformamide	0.778
5	JRY	Hexylcarbamic acid	0.727
6	URV	[(2~{S})-2-azanyl-3-methyl-butyl]carbamic acid	0.727
7	G2Z	[(2~{S})-2-azanylpropyl]carbamic acid	0.700