1	P1W	3-methylbut-2-en-1-ol	1.000
2	33D	3,3-dimethylbutan-1-ol	0.857
3	6OM	(2z)-2-methylbut-2-ene-1,4-diol	0.857
4	IVA	Isovaleric acid	0.857
5	O4Q	(~{E})-4-chloranyl-3-methyl-but-3-enal	0.857
6	VOL	L-valinol	0.857
7	1BO	1-butanol	0.833
8	61G	2-methylbuta-1,3-diene	0.833
9	9A4	(2z)-but-2-en-1-ol	0.833
10	9A7	(2e)-but-2-en-1-ol	0.833
11	CRD	(2e)-but-2-enal	0.833
12	1MI	2-(hydroxymethyl)butane-1,4-diol	0.750
13	40S	3-methylpentane-1,5-diol	0.750
14	DVA	D-valine	0.750
15	KIV	3-methyl-2-oxobutanoic acid	0.750
16	LHV	(2s)-2-hydroxy-3-methylbutanoic acid	0.750
17	MPD	(4s)-2-methyl-2,4-pentanediol	0.750
18	MRD	(4r)-2-methylpentane-2,4-diol	0.750
19	RXL	Dehydrovaline	0.750
20	VAD	Deaminohydroxyvaline	0.750
21	VAI	(2s)-2-amino-3-methylbutane-1,1-diol	0.750
22	VAL	Valine	0.750
23	VLM	Valinylamine	0.750
24	2FU	But-2-enedial	0.714
25	2RP	(2r)-pentan-2-ol	0.714
26	3BB	3-bromobut-3-en-1-ol	0.714
27	4HA	4-hydroxybutan-1-aminium	0.714
28	5KO	(3r)-3-hydroxybutanal	0.714
29	89N	(2e)-but-2-ene-1,4-diol	0.714
30	BEO	Butenoic acid	0.714
31	BMD	Butyramide	0.714
32	BU1	1,4-butanediol	0.714
33	BU2	1,3-butanediol	0.714
34	BU4	(3r)-butane-1,3-diol	0.714
35	BUA	Butanoic acid	0.714
36	BUQ	4-hydroxy-2-butanone	0.714
37	CDE	1,2-dimethyl-propylamine	0.714
38	I5Q	(2s)-butane-1,2-diol	0.714
39	LEN	3-methylbutan-1-amine	0.714
40	NZ5	(2~{R})-butane-1,2-diol	0.714
41	PE9	Pentan-1-ol	0.714
42	PNH	Pentan-2-one	0.714
43	PTL	Pentanal	0.714