[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C@][C][C][C@H1][C@H1][Branch1][S][C@@H1][Ring1][=Branch1][C@H1][Branch1][=Branch2][C@H1][Branch1][Branch1][C@@H1][Ring1][=Branch2][O][O][O][C][C][C][=C][Ring1][=N][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][O]"}, {"from": "gpt", "value": "The molecule is a 3-hydroxy steroid that is 17beta-estradiol which has been substituted at the 15alpha and 16alpha positions by two additional hydroxy groups. It is a natural estrogen produced exclusively during pregnancy by the fetal liver. It has a role as an estrogen, an estrogen receptor agonist, a human metabolite, a human xenobiotic metabolite and an oral contraceptive. It is a 3-hydroxy steroid, a 17beta-hydroxy steroid, a 16alpha-hydroxy steroid, a 15alpha-hydroxy steroid and a steroid hormone. It derives from a hydride of an estrane."}]