[{"from": "human", "value": "Describe this molecule. [C][C@H1][Branch2][=Branch1][C][C@H1][Branch2][Branch1][=N][C@H1][Branch2][Branch1][Ring1][O][C@@][Ring1][=Branch1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C][C@@H1][C@H1][Branch2][Ring1][Branch2][C@H1][Branch2][Ring1][Ring1][C@@H1][Branch1][Ring2][O][Ring1][Branch1][N][C][=C][C][=Branch1][=Branch1][=N][C][Ring1][=Branch1][=O][N][O][O][C@@H1][Branch1][Ring1][C][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a nucleotide-sugar oxoanion arising from deprotonation of the carboxylic acid and phosphate functions of CMP-3-deoxy-beta-D-manno-octulosonic acid; major species at pH 7.3. It is a conjugate base of a CMP-3-deoxy-beta-D-manno-octulosonic acid."}]