19-Norpregna-4,6-diene-3,20-dione, 17-(acetyloxy)-6-chloro-16-methylene- 19-Norpregna-4,6-diene-3,20-dione, 6-chloro-17-hydroxy-16-methylene-, acetate 27241-00-5 6-Chloro-16-methylene-17alpha-hydroxy-19-nor-4,6-pregnadiene-3,20-dione 17-acetate