1	PUT	1,4-diaminobutane	1.000
2	58I	4-azaniumylbutylazanium	1.000
3	A1AIV	4-aminobutanenitrile	1.000
4	LYT	Butylamine	0.833
5	4HA	4-hydroxybutan-1-aminium	0.714
6	AML	Amylamine	0.714
7	BMD	Butyramide	0.714
8	LEN	3-methylbutan-1-amine	0.714