1 2FO (2z,3z)-2-[(2z)-3-hydroxyprop-2-en-1-ylidene]-3-iminobutanedioic acid 1.000 2 1UC (2e)-2-amino-3-[(1e)-3-oxoprop-1-en-1-yl]but-2-enedioic acid 1.000 3 5UK 2-imino,3-carboxy,5-oxo,6-hydroxy hexanoic acid 0.929 4 XQB 2-imino,3-carboxy,5-hydroxy,6-oxo hexanoic acid 0.929 5 HCT (2r)-butane-1,2,4-tricarboxylic acid 0.857 6 0GY (1e,3z)-4-hydroxybuta-1,3-diene-1,2,4-tricarboxylic acid 0.800 7 48Y (1r,2s)-1-hydroxybutane-1,2,4-tricarboxylic acid 0.800 8 HCA 3-hydroxy-3-carboxy-adipic acid 0.800 9 HJ7 (2z)-4-oxobut-2-ene-1,2,4-tricarboxylic acid 0.800 10 NQM (1e)-4-oxobut-1-ene-1,2,4-tricarboxylic acid 0.800 11 SU8 (2r)-2-butylbutanedioic acid 0.786 12 2AS (2s,3s)-3-methyl-aspartic acid 0.769 13 2XP (2z,4z)-2-imino-6-oxohex-4-enoic acid 0.769 14 6OD (2e,4e)-2-amino-6-oxohexa-2,4-dienoic acid 0.769 15 ACB 3-methyl-beta-D-aspartic acid 0.769 16 DDO 6-hydroxy-D-norleucine 0.769 17 LDO 6-hydroxy-L-norleucine 0.769 18 SKJ Beta-methylnorleucine 0.769 19 7QD (2s)-2-hydroxy-4-oxobutane-1,2,4-tricarboxylic acid 0.750 20 OR6 (2~{S})-2-butyl-3-methylidene-butanedioic acid 0.733 21 11C (2r)-2-aminohexanedioic acid 0.714 22 DMK 3,3-dimethyl aspartic acid 0.714 23 UN1 2-aminohexanedioic acid 0.714 24 WEH L-homoglutamine 0.714 25 WVL (2s,3r)-2-amino-3,5-dimethylhex-4-enoic acid 0.714