1625-11-2 NSC19988 Pregn-4-ene-3,20-dione, 11.beta.,17,21-trihydroxy-6.alpha.-methyl-, 21-acetate Pregn-4-ene-3,20-dione, 21-(acetyloxy)-11,17-dihydroxy-6-methyl-, (6.alpha.,11.beta.)-