(2S)-2-amino-4-(2-aminophenyl)-4-oxobutanoic acid (2S)-2-amino-4-(2-aminophenyl)-4-oxo-butanoic acid (2S)-2-amino-4-(2-aminophenyl)-4-keto-butyric acid 2922-83-0 3-(2-aminobenzoyl)-L-alanine CHEBI:16946 CCRIS 4425 Kynurenine, L- K8625_SIGMA KYN NCGC00163345-01 3-Anthraniloyl-L-alanine C00328 ZINC00895186 L-2-Amino-3-(2-aminobenzoyl)propionic acid nchembio842-comp17