1	GVE	Methyl 4-aminobutanoate	1.000
2	4HA	4-hydroxybutan-1-aminium	0.750
3	GME	5-O-methyl-glutamic acid	0.727
4	AW9	(2z)-4-methoxy-4-oxobut-2-enoic acid	0.700
5	EAC	Ethyl 3-oxobutanoate	0.700
6	HMB	(4s)-4-hydroxy-4-methoxybutanoic acid	0.700
7	MSU	Succinic acid monomethyl ester	0.700
8	UR9	Monomethyl fumarate	0.700
9	VME	Methyl L-valinate	0.700