1	6OM	(2z)-2-methylbut-2-ene-1,4-diol	1.000
2	1MI	2-(hydroxymethyl)butane-1,4-diol	0.875
3	2FU	But-2-enedial	0.857
4	89N	(2e)-but-2-ene-1,4-diol	0.857
5	BU1	1,4-butanediol	0.857
6	P1W	3-methylbut-2-en-1-ol	0.857
7	CIZ	(~{z})-2-methylbut-2-enedioic acid	0.778
8	ITN	2-methylidenebutanedioic acid	0.778
9	JO3	(2r)-2-methylbutanedioic acid	0.778
10	LVN	(3s)-4-oxo-L-valine	0.778
11	MEZ	(2e)-2-methylbut-2-enedioic acid	0.778
12	MQD	2-methylpentane-1,2,4-triol	0.778
13	OPL	(2r,3r)-2,4,4-trihydroxy-3-methylbutanal	0.778
14	SUH	(2s)-2-methylbutanedioic acid	0.778
15	0V1	(2~{S})-butane-1,2,4-triol	0.750
16	33D	3,3-dimethylbutan-1-ol	0.750
17	BGQ	2-hydroxy butane-1,4-diol	0.750
18	IVA	Isovaleric acid	0.750
19	MB8	(2z)-2-methylbut-2-enoic acid	0.750
20	O4Q	(~{E})-4-chloranyl-3-methyl-but-3-enal	0.750
21	SMB	2-methylbutanoic acid	0.750
22	SSN	4-oxobutanoic acid	0.750
23	VOL	L-valinol	0.750
24	1BO	1-butanol	0.714
25	5OZ	2-methylpropanal	0.714
26	61G	2-methylbuta-1,3-diene	0.714
27	9A4	(2z)-but-2-en-1-ol	0.714
28	9A7	(2e)-but-2-en-1-ol	0.714
29	CRD	(2e)-but-2-enal	0.714
30	0A0	2-methyl-L-aspartic acid	0.700
31	2AS	(2s,3s)-3-methyl-aspartic acid	0.700
32	ACB	3-methyl-beta-D-aspartic acid	0.700
33	B2N	(2s)-4-amino-2-(aminomethyl)-4-oxobutanoic acid	0.700
34	KPL	Ketopantoate	0.700
35	PAF	Pantoate	0.700
36	WOC	2,2-dimethylbutanedioic acid	0.700