595-52-8 Descinolone NSC70646 Pregna-1,4-diene-3,20-dione, 9-fluoro-11,16,17-trihydroxy-, (11.beta.,16.alpha.)- Pregna-1,4-diene-3,20-dione, 9-fluoro-11.beta.,16.alpha.,17-trihydroxy-