[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][O][C][C][Branch1][=C][C][N][C][=C][N][=C][Ring1][Branch1][N+1][=Branch1][C][=O][O-1][O]"}, {"from": "gpt", "value": "The molecule is under investigation in clinical trial NCT00038038 (Assessment of Head and Neck Tumor Hypoxia Using 18F-Fluoromisonidazole)."}]