[{"from": "human", "value": "Describe this molecule. [C][C@][C][C][C@H1][C@H1][Branch1][#Branch2][C@@H1][Ring1][=Branch1][C][C][C@@H1][Ring1][=Branch2][O][C][C][C@@H1][C@@][Ring1][O][Branch1][#Branch2][C][=C][C][=Branch1][C][=O][C][Ring1][#Branch1][C]"}, {"from": "gpt", "value": "The molecule is an anabolic steroid that differs from testosterone by having a 1,2-double bond instead of 4,5-double bond in its A ring."}]