[{"from": "human", "value": "Please give me some details about this molecule. [C][O][C][=Branch1][C][=O][C][C][C][=Branch1][C][=O][C][N]"}, {"from": "gpt", "value": "The molecule is a prodrug that is metabolised to Protoporphyrin IX (a photosensitizer) used in photodynamic therapy."}]