[{"from": "human", "value": "Please give me some details about this molecule. [C][C@@H1][C][C][=C][C][=Branch1][C][=O][C][C][C@@H1][Ring1][#Branch1][C@@H1][C@@H1][Ring1][O][C@@H1][C][C][C@@H1][Branch1][O][C@][Ring1][Branch1][Branch1][Branch1][C][C][Ring1][=Branch2][C][O][C][=Branch1][C][=O][C]"}, {"from": "gpt", "value": "The molecule is a synthetic and injected anabolic\u2013androgenic steroid (AAS) and a derivative of nandrolone (19-nortestosterone) which was never marketed. It is an androgen ester \u2013 specifically, the C17 acetate ester of [DB05830]."}]