[{"from": "human", "value": "What can you tell me about this molecule? [C][C][N][Branch2][Ring2][N][C][C][N][Branch2][Ring1][=N][C][C][N][Branch1][#C][C][C][N][Ring1][N][C][P][=Branch1][C][=O][Branch1][C][O][O][C][P][=Branch1][C][=O][Branch1][C][O][O-1][C][P][=Branch1][C][=O][Branch1][C][O][O-1][C][P][=Branch1][C][=O][Branch1][C][O][O-1].[153Sm+3]"}, {"from": "gpt", "value": "The molecule is a radioconjugate composed of the phosphonic acid chelator DOTMP (1,4,7,10-tetraazacyclododecane-1,4,7,10-tetramethylenephosphonic acid) conjugated to the beta- and gamma-emitting radioisotope samarium Sm 153, with potential antineoplastic activity. Upon administration of samarium Sm 153-DOTMP, the DOTMP moiety targets and binds to growing bone, thereby selectively delivering samarium Sm 153-mediated cytotoxic radiation to bone tumor and metastases, which may help destroy bone metastases and mitigate pain from bone metastases."}]