(2S)-2-amino-6-oxohexanoic acid (2S)-2-amino-6-oxo-hexanoic acid (2S)-2-amino-6-keto-hexanoic acid 34897-38-6 6-oxo-L-norleucine CHEBI:17917 L-6-oxonorleucine L-allysine 6-Oxo-DL-norleucine Norleucine, 6-oxo- Norvaline, 5-formyl- alpha-Aminoadipic semialdehyde 2-AMINO-6-OXO-HEXANOIC ACID DO2 2-Aminoadipate 6-semialdehyde C04076 L-2-Aminoadipate 6-semialdehyde