[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][N][Branch2][Ring2][Ring1][C][C][N][Branch2][Ring1][#Branch1][C][C][N][Branch1][N][C][C][N][Ring1][N][C][C][=Branch1][C][=O][O-1][C][C][=Branch1][C][=O][O-1][C][C][=Branch1][C][=O][O-1][C][C][=Branch1][C][=O][O-1].[Gd+3]"}, {"from": "gpt", "value": "The molecule is a tetracarboxylic acid anion that is the conjugate base of gadoteric acid. It is a conjugate base of a gadoteric acid."}]