1	273	Cyclopentanecarboximidamide	1.000
2	8M2	[azanyl(thiophen-3-yl)methylidene]azanium	0.778
3	TP5	Thiophene-3-carboximidamide	0.778
4	BEN	Benzamidine	0.700
5	NTN	Isonicotinamidine	0.700