[{"from": "human", "value": "Describe this molecule. [C][C][N][=C][C][=Branch1][Ring2][=N][Ring1][=Branch1][C][=N][C][=N][Ring1][#Branch1]"}, {"from": "gpt", "value": "The molecule is a metabolite found in or produced by Escherichia coli (strain K12, MG1655)."}]