17-AP 17-Acetoxyprogesterone 17-Hydroxyprogesterone 17.alpha.-acetate 17-Hydroxyprogesterone acetate 17.alpha.-Acetoxyprogesterone 302-23-8 NSC12191 Pregn-4-ene-3,20-dione, 17-(acetyloxy)- Pregn-4-ene-3,20-dione, 17-hydroxy-, acetate Prokan U 5533