[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][C][C@@H1][Branch2][Ring1][Branch1][C][=Branch1][C][=O][N][C@@H1][Branch1][Branch2][C][C][C][=Branch1][C][=O][N][C][=Branch1][C][=O][O][N][C][=C][Branch1][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N+1][=Branch1][C][=O][O-1][N+1][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a dipeptide consisting of L-norvaline substituted on nitrogen by a 2,4-dinitrophenyl group and connected to L-glutamine via a peptide bond. It has a role as an epitope. It contains a 2,4-dinitrophenyl group."}]