[{"from": "human", "value": "Describe this molecule. [C][Branch1][O][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][N][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][N]"}, {"from": "gpt", "value": "The molecule is a 2,6-diaminopimelate(2-). It is a conjugate base of a LL-2,6-diaminopimelic acid."}]