[{"from": "human", "value": "Please give me some details about this molecule. [C][C@][C][C][C][=Branch1][C][=O][C][C@@H1][Ring1][#Branch1][C][C][C@@H1][C@@H1][Ring1][O][C][C][C@][Branch1][#Branch2][C@H1][Ring1][=Branch1][C][C][C][Ring1][Branch1][=O][C]"}, {"from": "gpt", "value": "The molecule is a steroid hormone that is a mixture of alpha and beta isomers, which have different orientations for the hydrogen group at position 5. 5alpha-androstanedione is a metabolic precursor for both testosterone and estrone."}]