[{"from": "human", "value": "Describe this molecule. [C][C][=N][C][=C][Branch1][O][N][C][=Branch1][C][=O][N][C][Ring1][#Branch1][=O][N][Branch1][Branch1][C][Ring1][N][=O][C][C@@H1][Branch1][O][C@@H1][Branch1][#Branch1][C@@H1][Branch1][Ring1][C][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is the pteridine that is lumazine substituted with a methyl group at C-6, a hydroxy group at C-7 and a 1-D-ribityl group at N-8. It has a role as an EC 2.5.1.9 (riboflavin synthase) inhibitor. It is functionally related to a lumazine and a ribitol."}]