[{"from": "human", "value": "What can you tell me about this molecule? [C][N][C][C][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is an L-lysine derivative that is L-lysine in which one of the hydrogens attached to N(6) is substituted by a methyl group. It is a L-lysine derivative and a non-proteinogenic L-alpha-amino acid. It is a conjugate base of a N(6)-methyl-L-lysinium(1+)."}]