[{"from": "human", "value": "Describe this molecule. [C][C@][C][C][C@H1][C@H1][Branch1][#Branch2][C@@H1][Ring1][=Branch1][C][C][C@@H1][Ring1][=Branch2][O][C@@H1][Branch1][#C][C][C][=C][Ring1][O][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][C][C][C][C][C][C][C][C][C][S][=Branch1][C][=O][C][C][C][C][Branch1][=Branch2][C][Branch1][C][F][Branch1][C][F][F][Branch1][C][F][F]"}, {"from": "gpt", "value": "The molecule is a 3-hydroxy steroid that is 17beta-estradiol in which the 7alpha hydrogen has been replaced by a nonyl group in which one of the hydrogens of the terminal methyl has been replaced by a (4,4,5,5,5-pentafluoropentyl)sulfinyl group. An estrogen receptor antagonist, it is used in the treatment of breast cancer. It has a role as an antineoplastic agent, an estrogen receptor antagonist and an estrogen antagonist. It is a 3-hydroxy steroid, a 17beta-hydroxy steroid, an organofluorine compound and a sulfoxide. It derives from a hydride of an estrane."}]