1	BHH	N-butyl-N'-hydroxyguanidine	1.000
2	AHI	3-{[(E)-amino(hydroxyimino)methyl]amino}propan-1-aminium	0.800
3	NNH	Nor-N-omega-hydroxy-L-arginine	0.750
4	IHG	N-isopropyl-N'-hydroxyguanidine	0.700