2477-73-8 6.alpha.-Chloro-17-acetoxyprogesterone 6.alpha.-Chloro-17-hydroxyprogesterone acetate 6.alpha.-Chloro-17-hydroxyprogesterone, acetate Hydromadinone acetate NSC33170 Pregn-4-ene-3,20-dione, 17-(acetyloxy)-6-chloro-, (6.alpha.)- Pregn-4-ene-3,20-dione, 6.alpha.-chloro-17-hydroxy-, acetate Progesterone, 6.alpha.-chloro-17-hydroxy-, acetate RS 1103