[{"from": "human", "value": "Please give me some details about this molecule. [C][C@@H1][C][C@][Branch2][Ring1][S][C@@H1][Branch2][Ring1][=Branch1][C][C][C@@H1][C@@H1][Ring1][=Branch1][C][C][C@][Branch1][#Branch2][C@H1][Ring1][=Branch1][C][C][C@@H1][Ring1][Branch1][O][C][C][C][Ring2][Ring1][Ring1][=O][C]"}, {"from": "gpt", "value": "The molecule is a synthetic anabolic steroid related to dihydrotestosterone that has antiestrogenic effects. Dromostanolone inhibits the growth of estrogen receptor-presenting breast cancers; its virilizing effects limit its clinical usefulness. (NCI04)"}]