[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][Branch2][Ring2][Branch1][N][Branch2][Ring1][C][C][=N][C][=Branch1][N][=N][C][=Branch1][C][=O][C][Ring1][#Branch1][=N][Ring1][O][O-1][C][C@@H1][Branch1][O][C@@H1][Branch1][#Branch1][C@@H1][Branch1][Ring1][C][O][O][O][O][C]"}, {"from": "gpt", "value": "The molecule is the anion formed from 6,7-dimethyl-8-(1-D-ribityl)lumazine by removal of a proton from the nitrogen at position 3 (i.e. between the oxo groups). It is the major species at physiological pH. It has a role as a Saccharomyces cerevisiae metabolite and a cofactor. It is a conjugate base of a 6,7-dimethyl-8-(1-D-ribityl)lumazine."}]