[{"from": "human", "value": "Please give me some details about this molecule. [C][=C][Branch1][O][N][C][=Branch1][C][=O][N][C][Ring1][#Branch1][=O][O-1]"}, {"from": "gpt", "value": "The molecule is an organic anion obtained by removal of one of the methylene protons from barbituric acid. It is the major microspecies at pH 7.3 (according to Marvin v 6.2.0.). It is a conjugate base of a barbituric acid."}]