[{"from": "human", "value": "Describe this molecule. [C][Branch2][Ring1][Ring1][C@H1][Branch1][#C][C@H1][Branch1][O][C@@H1][Branch1][#Branch1][C@H1][Branch1][Ring1][C][=O][18F][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a positron-emitting radiopharmaceutical containing radioactive 2-deoxy-2-[18F] fluoro-D-glucose. With similar cell uptake as glucose (high in tumor cells), fludeoxyglucose F 18 is not dephosphorylated and further metabolized. (NCI04)"}]