1 3BB 3-bromobut-3-en-1-ol 1.000 2 1BO 1-butanol 0.833 3 9A4 (2z)-but-2-en-1-ol 0.833 4 9A7 (2e)-but-2-en-1-ol 0.833 5 CRD (2e)-but-2-enal 0.833 6 2FU But-2-enedial 0.714 7 2RP (2r)-pentan-2-ol 0.714 8 4HA 4-hydroxybutan-1-aminium 0.714 9 5KO (3r)-3-hydroxybutanal 0.714 10 89N (2e)-but-2-ene-1,4-diol 0.714 11 BEO Butenoic acid 0.714 12 BMD Butyramide 0.714 13 BU1 1,4-butanediol 0.714 14 BU2 1,3-butanediol 0.714 15 BU4 (3r)-butane-1,3-diol 0.714 16 BUA Butanoic acid 0.714 17 BUQ 4-hydroxy-2-butanone 0.714 18 I5Q (2s)-butane-1,2-diol 0.714 19 NZ5 (2~{R})-butane-1,2-diol 0.714 20 P1W 3-methylbut-2-en-1-ol 0.714 21 PE9 Pentan-1-ol 0.714 22 PNH Pentan-2-one 0.714 23 PTL Pentanal 0.714