[{"from": "human", "value": "Provide a description of this molecule. [C][C][=Branch1][C][=O][C@][Branch2][Ring2][#Branch1][C@@H1][Branch2][Ring2][C][C][C@@H1][C@@][Ring1][Branch1][Branch2][Ring1][=Branch2][C][C][C@H1][C@H1][Ring1][=Branch1][C][C][=C][C@@][Ring1][=Branch1][Branch1][#Branch2][C][C][C@@H1][Branch1][Ring2][C][Ring1][=Branch1][O][C][C][O][O]"}, {"from": "gpt", "value": "The molecule is a pregnane sterol that is pregnenolone substituted by two hydroxy groups at positions 16 and 17 (16alpha,17alpha-stereoisomer). It is a hydroxypregnenolone, a pregnane sterol, a 16alpha-hydroxy steroid, a 17alpha-hydroxy steroid and a tertiary alpha-hydroxy ketone."}]