1053-58-3 6.alpha.-Fluorocortisol 6.alpha.-Fluorohydrocortisone Fluorohydrocortisone NSC63560 Pregn-4-ene-3,20-dione, 6-fluoro-11,17,21-trihydroxy-, (6.alpha.,11.beta.)- Pregn-4-ene-3,20-dione, 6.alpha.-fluoro-11.beta.,17,21-trihydroxy-