Aceturic acid
Allantoic acid
(1)-3-Amino-2-methylpropionic acid
6-Aminocaproic acid
1-Aminocyclobutanecarboxylic acid
12-Aminododecanoic acid
p-Aminohippuric acid
2-Aminoisobutyric acid
11-Aminoundecanoic acid
Ammonium hippurate
Cyclohexanediamine tetraacetic acid
Cycloleucine
Diaminopimelic acid
2,3-Diaminopropionic acid
Ethylenediamine-N,N'-di(acetic acid)
Hippuric acid
N-(2-Hydroxyethyl)iminodiacetic acid
Oxamic acid
Phenylthiohydantoic acid
Quinolinic acid