[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][=C][Branch2][#Branch1][=Branch2][C][=C][C][=N][C][=Branch2][=Branch1][Branch1][=C][N][=C][C][=C][Branch2][Branch1][C][C][=Branch2][Ring2][Ring1][=C][C][Ring1][=Branch1][=N][C][=C][C][=Branch2][Ring1][#Branch1][=C][Branch1][S][C][=Branch1][Ring2][=N][Ring1][Branch1][C][=C][Ring2][Ring1][Branch2][N-1][Ring2][Ring1][#Branch1][C][C][C][O][C][O][C][C][O][C][C][O][C][C][O][C][O][C][C][O][C][C][O][C][C][O][C][C][=Branch1][=Branch2][=C][Ring2][Branch1][C][C][C][C][O][C][C][C].[C][C][=Branch1][C][=O][O-1].[C][C][=Branch1][C][=O][O-1].[Lu+3]"}, {"from": "gpt", "value": "The molecule is a second-generation photosensitizer for photodynamic therapy (PDT) of cancer. It belongs to the family of drugs called metallotexaphyrins. Also called lutetium texaphyrin. Motexafin lutetium is a pentadentate aromatic metallotexaphyrin with photosensitizing properties."}]