[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][C@@H1][C][C][=C][Branch1][#Branch2][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][C][=C][Ring1][O][C][=C][Branch1][#Branch1][C][C@H1][Ring1][=Branch1][C][C][C][=C][Branch1][Branch1][C][=C][Ring1][#Branch2][O]"}, {"from": "gpt", "value": "The molecule is a carbotetracyclic compound that is 5,6,11,12-tetrahydrochrysene substituted by hydroxy groups at positions 2 and 8 and by ethyl groups at positions 5 and 11 (the 5R,11R-stereoisomer). It is an agonist of ER-alpha and antagonist of ER-beta receptors. It has a role as an estrogen receptor antagonist, an estrogen receptor agonist, a geroprotector and a neuroprotective agent. It is a carbotetracyclic compound and a polyphenol."}]