[{"from": "human", "value": "What can you tell me about this molecule? [C][Branch1][#Branch2][C][C][N][C][C][=Branch1][C][=O][O][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is an L-lysine derivative with a carboxymethyl substituent at the N(6)-position. It has a role as an antigen. It is a L-lysine derivative and a non-proteinogenic L-alpha-amino acid."}]