1 9KH 6-carboxy methyl-4-hydroxy-2-pyridinol 1.000 2 57O (4,6-dihydroxy-3,5-dimethylpyridin-2-yl)acetic acid 0.929 3 UAA Uracil-6-acetic acid 0.786 4 3FG (2s)-amino(3,5-dihydroxyphenyl)ethanoic acid 0.733 5 D3P (2r)-amino(3,5-dihydroxyphenyl)acetic acid 0.733 6 3HP 3-hydroxyphenylacetate 0.714 7 KTA (S)-cyclohexanone-2-acetate 0.714