21-Chloro-11beta,16alpha,17alpha-trihydroxypregna-1,4-diene-3,20-dione, 16,17-acetonide 2H-Naphth(2',1':4,5)indeno(1,2-d)(1,3)dioxole, pregna-1,4-diene-3,20-dione deriv. 749-69-9 Pregna-1,4-diene-3,20-dione, 21-chloro-11-hydroxy-16,17-((1-methylethylidene)bis(oxy))-, (11beta,16alpha)- Pregna-1,4-diene-3,20-dione, 21-chloro-11beta,16alpha,17-trihydroxy-, cyclic 16,17-acetal with acetone SQ 20,589 SQ 20589