[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a diagnostic aid (radiopaque medium)"}, {"from": "gpt", "value": "[C][C][Branch2][Ring1][=N][C][N][Branch2][Ring1][Ring1][C][=C][Branch1][=C][C][=C][Branch1][=Branch2][C][=Branch1][Branch1][=C][Ring1][=Branch1][I][N][I][I][C][=Branch1][C][=O][C][C][=Branch1][C][=O][O]"}]