2-HydroxyisobutyricCitraconic 4-Hydroxybenzoic 
Nicotinic acidGlutaric 4-Hydroxyphenylacetic 
Pyruvic acid3-Methylglutaric Tartaric acid 
Lactic acid3-MethylglutaconicSuberic 
Xanthurenic 4-Aminobutyric  Quinolinic  
KynurenicCitramalic  Aconitic  
Glycolic acidMandelic  Homovallinic 
2-Hydroxybutyric Malic  Azelaic 
3-Hydroxybutyric Adipic Hippuric 
2-Hydroxyisovaleric 4-Phenylbutyric 3,4-Dihydroxyphenylacetic   
3-Methyl-2-oxovaleric  Pyroglutamic Citric acid 
Malonic 3-Aminoisobutyric  Homogentisic  
Methylmalonic 3-Methyladipic 3-(3hydroxyphenyl)-3-hydroxypropionic 
2-Hydroxyisocaproic  2-Hydroxyphenylacetic Sebacic  
Benzoic   2-Ketoglutaric Vallylmandelic   
Succinic 3-Phenyllactic  4-Hydroxyphenyllactic  
Methylsuccinic 3-Hydroxyglutaric Dihydrocaffeic  
Glyceric  Pimelic Indole3acetic 
Fumaric 3-Hydroxy-3-methylglutaric 5-Hydroxyindole-3-acetic