[{"from": "human", "value": "Please give me some details about this molecule. [C][C][C@][Branch2][Ring1][S][C][C][C][C][Ring1][Branch1][Branch2][Ring1][=Branch1][C][C][C][C][Ring1][=Branch1][C][C][C][C][Ring1][=Branch1][Branch1][#Branch1][C][C][C][C][Ring1][=Branch1][C][C][O]"}, {"from": "gpt", "value": "The molecule is any C21-steroid carrying a hydroxy substituent at the 17alpha-position. Note that individual examples may have ring substituents at other positions and/or contain double bonds, aromatic A-rings, expanded/contracted rings etc., so the formula and mass may vary from that given for the generic structure. It is a C21-steroid and a 17alpha-hydroxy steroid."}]