[{"from": "human", "value": "Describe this molecule. [C][Branch1][N][C][=Branch1][Branch2][=N][C][C][=Branch1][C][=O][O-1][O-1][N][=C][Branch1][=Branch2][C][N][=C][Branch1][Ring1][C][S-1][O-1][O-1].[O-2].[Na+1].[Na+1].[Tc]"}, {"from": "gpt", "value": "The molecule is a Radioactive Diagnostic Agent. The mechanism of action of technetium tc-99m mertiatide is as a Radiopharmaceutical Activity."}]