[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch2][N][C][C][=C][Branch1][P][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][S][=Branch1][C][=O][=Branch1][C][=O][O-1][N+1][=Branch2][=Branch2][=C][=C][Ring1][=N][/C][=C][/C][=C][Branch2][Branch1][=Branch2][/C][=Branch2][Ring2][#C][=C][/C][=C][\\C][Branch2][Ring2][Ring2][C][=C][Branch1][S][N][/-Ring1][Branch1][C][C][C][C][S][=Branch1][C][=O][=Branch1][C][=O][O][C][=C][C][=Branch1][Ring2][=C][Ring1][#C][S][=Branch1][C][=O][=Branch1][C][=O][O][Branch1][C][C][C][/C][C][C][Ring2][Ring1][#C][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][C][C][=C][N][=C][C][=Branch1][Ring2][=N][Ring1][=Branch1][C][=Branch1][C][=O][N][C][=Branch1][Ring2][=N][Ring1][Branch2][N][C][C][C][C][S][=Branch1][C][=O][=Branch1][C][=O][O][C]"}, {"from": "gpt", "value": "The molecule is a fluorescent imaging agent composed of a folate receptor-alpha (FRa)-targeting ligand conjugated to a fluorescent near infrared (NIR) dye, that can be used for imaging of FRa-expressing tumor cells. Upon administration, the FRa-targeting moiety of pafolacianine specifically binds to FRa expressed on tumor cells thus selectively delivering the fluorescent dye to FRa-expressing tumor cells. Upon NIR imaging, tumor cells fluoresce, which allows for the visualization and identification of FRa-overexpressing tumor cells. FRa, a high-affinity folate-binding protein and a member of the folate receptor family, is overexpressed in various cancer cell types."}]