4'-dimethylamino-17beta-hydroxy-17alpha-(1-propynyl)benzo(12,12a)-11alpha,18-cyclo-12a,12b-dihomo-13alpha-estr-4-en-3-one
4'-dimethylamino-17beta-hydroxy-17alpha-(1-propynyl)benzo(12,12a)-11alpha,18-cyclo-12a,12b-dihomo-13alpha-estr-4-en-3-one