[{"from": "human", "value": "Describe this molecule. [C][C@@H1][Branch2][Ring2][=Branch1][C@][Branch2][Ring1][P][C][C][C@@H1][C@@][Ring1][Branch1][Branch2][Ring1][#Branch1][C][C][C@H1][C@H1][Ring1][=Branch1][C][C][C][=C][C][=Branch1][C][=O][C][C][C@][Ring1][O][Ring1][#Branch1][C][C][O][O]"}, {"from": "gpt", "value": "The molecule is the (20S)-stereoisomer of 17,20-dihydroxypregn-4-en-3-one. It has a role as a mouse metabolite."}]