[{"from": "human", "value": "Provide a description of this molecule. [C][C][O][C][C][P][Branch1][=Branch1][C][C][O][C][C][C][C][P][Branch1][=Branch1][C][C][O][C][C][C][C][O][C][C]"}, {"from": "gpt", "value": "The molecule is part of the group of diphosphines. Tetrofosmin is used in conjunction with technetium Tc-99m as a radiopharmaceutical."}]