1	4J5	Amino{[(3s)-3-amino-3-carboxypropyl]amino}methaniminium	1.000
2	ALG	4-carbamimidamidobutanoic acid	0.909
3	A1AZK	N-(4-oxobutyl)guanidine	0.818
4	NNH	Nor-N-omega-hydroxy-L-arginine	0.769
5	MEN	N-methyl asparagine	0.750
6	MND	N-methyl-D-asparagine	0.750
7	NGQ	N-carbamimidoyl-L-glutamic acid	0.714