1	BKQ	Ethyl levulinate	1.000
2	9J3	4-ethoxy-4-oxobutanoic acid	0.818
3	NF3	(~{z})-4-ethoxy-4-oxidanylidene-but-2-enoic acid	0.818
4	1H1	Ethyl (3r)-4-cyano-3-hydroxybutanoate	0.750
5	BKN	Ethyl 5-oxohexanoate	0.750
6	AW9	(2z)-4-methoxy-4-oxobut-2-enoic acid	0.727
7	EAC	Ethyl 3-oxobutanoate	0.727
8	HMB	(4s)-4-hydroxy-4-methoxybutanoic acid	0.727
9	MSU	Succinic acid monomethyl ester	0.727
10	UR9	(E)-4-methoxy-4-oxidanylidene-but-2-enoic acid	0.727
11	CA1	Ethyl propionate	0.700