(2S)-2-amino-4-(2-amino-3-hydroxyphenyl)-4-oxobutanoic acid (2S)-2-amino-4-(2-amino-3-hydroxy-phenyl)-4-oxo-butanoic acid (2S)-2-amino-4-(2-amino-3-hydroxy-phenyl)-4-keto-butyric acid C03227 3-(3-Hydroxyanthraniloyl)-L-alanine Benzenebutanoic acid, alpha,2-diamino-3-hydroxy-gamma-oxo-, (S)- (9CI) L-3-Hydroxykynurenine 3-(2-amino-3-hydroxybenzoyl)-L-alanine CHEBI:17380