[{"from": "human", "value": "Provide a description of this molecule. [C][=N][C][=Branch2][Ring2][Ring1][=C][Branch2][Ring1][=C][N][Ring1][Branch1][C@H1][C@@H1][Branch2][Ring1][Branch1][C@@H1][Branch1][P][C@H1][Branch1][Ring2][O][Ring1][Branch1][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O-1][O][O][N][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is an organophosphate oxoanion that is the major structure at pH 7.3 of 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxylic acid. It is a conjugate base of a 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxylic acid."}]