1 QFH (2s,3s)-2,3-dihydroxy-2-methylbutanoic acid 1.000 2 23B (2s,3r)-2,3-dihydroxy-2-methylbutanoic acid 1.000 3 WTZ (2r,3r)-2,3-dihydroxy-2-methylbutanoic acid 1.000 4 X2X (2s)-2-hydroxy-2-methyl-3-oxobutanoic acid 1.000 5 8A1 (2s)-2,3-dihydroxy-2-methylpropanoic acid 0.889 6 OGU 2,3-dioh-butyric acid 0.889 7 89V (2s)-2,3-dihydroxy-3-methylbutanoic acid 0.800 8 EAX (2r,3r)-2,3,4-trihydroxybutanoic acid 0.800 9 LTH (2r,3s)-2,3,4-trihydroxybutanoic acid 0.800 10 OPL (2r,3r)-2,4,4-trihydroxy-3-methylbutanal 0.800 11 PRW (2r,3r)-4-amino-2,3-dihydroxybutanoic acid 0.800 12 THE Threonate ion 0.800 13 03W (2r)-propane-1,1,2,3-tetrol 0.778 14 2KT 2-ketobutyric acid 0.778 15 3HL (3s)-3-hydroxybutanoic acid 0.778 16 3HR (3r)-3-hydroxybutanoic acid 0.778 17 3PY 3-hydroxypyruvic acid 0.778 18 74I (z)-2,3-bis(oxidanyl)prop-2-enoic acid 0.778 19 AAE Acetoacetic acid 0.778 20 DE2 1-deoxy-L-erythrulose 0.778 21 DGY (2r)-2,3-dihydroxypropanoic acid 0.778 22 HIU (2r)-3-hydroxy-2-methylpropanoic acid 0.778 23 HUI (2s)-2-methyl-3-oxidanyl-propanoic acid 0.778 24 MB8 (2z)-2-methylbut-2-enoic acid 0.778 25 SMB 2-methylbutanoic acid 0.778 26 UCU (2r)-2-oxidanylbutanoic acid 0.778 27 28H (2r,3r)-3-hydroxy-2,4-dimethylpentanoic acid 0.727 28 DMV 2,3-dihydroxy-valerianic acid 0.727 29 F7C (2~{S})-2-oxidanyl-3-oxidanylidene-butanedioic acid 0.727 30 SRT S,R meso-tartaric acid 0.727 31 TAR D(-)-tartaric acid 0.727 32 TLA L(+)-tartaric acid 0.727 33 2TL D-allothreonine 0.700 34 3VB D-threitol 0.700 35 42B 4-amino-2-hydroxybutanoic acid 0.700 36 69O 2-oxopentanoic acid 0.700 37 6ZS L-isovaline 0.700 38 AKB 2-amino-3-ketobutyric acid 0.700 39 ALO Allo-threonine 0.700 40 DIV D-isovaline 0.700 41 DTH D-threonine 0.700 42 DTL L-treitol 0.700 43 DXX Methylmalonic acid 0.700 44 EW6 Alpha-methyl-L-serine 0.700 45 KIV 3-methyl-2-oxobutanoic acid 0.700 46 LER L-erythrulose 0.700 47 LHV (2s)-2-hydroxy-3-methylbutanoic acid 0.700 48 MAK Alpha-ketomalonic acid 0.700 49 MOZ (2z)-2-amino-3-hydroxybut-2-enoic acid 0.700 50 MRY Meso-erythritol 0.700 51 OXP 2-oxo-3-pentenoic acid 0.700 52 QT8 3-oxidanylidenepentanoic acid 0.700 53 THR Threonine 0.700 54 TTN Tartronate 0.700 55 UE3 (2r)-2-oxidanylpentanoic acid 0.700 56 VAD Deaminohydroxyvaline 0.700 57 VGX 4-hydroxy-2-oxobutanoic acid 0.700