[{"from": "human", "value": "Provide a description of this molecule. [C][C@][C][C][C@H1][C@H1][Branch1][=C][C@@H1][Ring1][=Branch1][C][C][C@][Ring1][=Branch2][Branch1][Ring1][C][#C][O][C][C][C][=C][Ring1][=N][C][C][C][=Branch1][C][=O][C][Ring1][#Branch1]"}, {"from": "gpt", "value": "The molecule has been used in the treatment of functional uterine bleeding and endometriosis. As a contraceptive, it has usually been administered in combination with MESTRANOL."}]