1	9A4	(2z)-but-2-en-1-ol	1.000
2	1BO	1-butanol	1.000
3	9A7	(2e)-but-2-en-1-ol	1.000
4	CRD	(2e)-but-2-enal	1.000
5	2FU	But-2-enedial	0.833
6	2RP	(2r)-pentan-2-ol	0.833
7	3BB	3-bromobut-3-en-1-ol	0.833
8	4HA	4-hydroxybutan-1-aminium	0.833
9	5KO	(3r)-3-hydroxybutanal	0.833
10	89N	(2e)-but-2-ene-1,4-diol	0.833
11	A1BNQ	Acetoacetyl group	0.833
12	BEO	Butenoic acid	0.833
13	BMD	Butyramide	0.833
14	BU1	1,4-butanediol	0.833
15	BU2	1,3-butanediol	0.833
16	BU4	(3r)-butane-1,3-diol	0.833
17	BUA	Butanoic acid	0.833
18	BUQ	4-hydroxy-2-butanone	0.833
19	I5Q	(2s)-butane-1,2-diol	0.833
20	NZ5	(2~{R})-butane-1,2-diol	0.833
21	P1W	3-methylbut-2-en-1-ol	0.833
22	PE9	Pentan-1-ol	0.833
23	PNH	Pentan-2-one	0.833
24	PTL	Pentanal	0.833
25	5VQ	2-propen-1-ol	0.800
26	A1IG4	(E)-but-2-ene	0.800
27	CBG	Propanal	0.800
28	NBU	N-butane	0.800
29	POL	N-propanol	0.800
30	0V1	(2~{S})-butane-1,2,4-triol	0.714
31	1SP	(2s)-pentane-1,2-diol	0.714
32	2KT	2-ketobutyric acid	0.714
33	33D	3,3-dimethylbutan-1-ol	0.714
34	39J	(2s)-2-chlorobutanoic acid	0.714
35	3HL	(3s)-3-hydroxybutanoic acid	0.714
36	3HR	(3r)-3-hydroxybutanoic acid	0.714
37	54L	Pent-4-ynoic acid	0.714
38	6OM	(2z)-2-methylbut-2-ene-1,4-diol	0.714
39	8R1	(R)-2-aminobutanamide	0.714
40	9JE	Pentane-1,5-diol	0.714
41	9TS	(2e)-pent-2-enoic acid	0.714
42	9VD	(2s,3s)-2-amino-3-hydroxybutanal	0.714
43	A3B	D-vinylglycine	0.714
44	AAE	Acetoacetic acid	0.714
45	ABA	Alpha-aminobutyric acid	0.714
46	ABU	Gamma-amino-butanoic acid	0.714
47	ARN	1-imino-5-pentanone	0.714
48	B3A	(3s)-3-aminobutanoic acid	0.714
49	BGQ	2-hydroxy butane-1,4-diol	0.714
50	DBB	D-alpha-aminobutyric acid	0.714
51	DBU	(2z)-2-aminobut-2-enoic acid	0.714
52	DE2	1-deoxy-L-erythrulose	0.714
53	DK9	Pentane-1,1-diol	0.714
54	GAQ	5-hydroxypentanal	0.714
55	H00	4-sulfanylbutanoic acid	0.714
56	HE2	Hexan-1-ol	0.714
57	IVA	Isovaleric acid	0.714
58	LEA	Pentanoic acid	0.714
59	LPG	(2s)-2-aminobut-3-ynoic acid	0.714
60	LVG	L-vinylglycine	0.714
61	MB8	(2z)-2-methylbut-2-enoic acid	0.714
62	O8Y	Hexanal	0.714
63	P2D	Pentane-2,4-dione	0.714
64	PTD	Pentanedial	0.714
65	SMB	2-methylbutanoic acid	0.714
66	SSN	4-oxobutanoic acid	0.714
67	SY8	5-azanylpentan-2-one	0.714
68	THO	Reduced threonine	0.714
69	UCU	(2r)-2-oxidanylbutanoic acid	0.714
70	VOL	L-valinol	0.714
71	WHX	5-aminopentan-1-ol	0.714
72	XEJ	(3r)-3-aminobutanamide	0.714
73	XKV	(2r)-2-aminobutanamide	0.714
74	YWF	Gamma-aminobutenoic acid	0.714