[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][=Branch1][C][=O][C][=Branch1][C][=O][C][C][N][C][=C][Branch1][Ring2][N][Ring1][=Branch1][C][=Branch1][C][=O][N][C][=Branch1][Ring2][=N][Ring1][Branch2][N]"}, {"from": "gpt", "value": "The molecule is a metabolite found in or produced by Escherichia coli (strain K12, MG1655)."}]