(11β,16β)-21-(acetyloxy)-9-chloro-11-hydroxy-16-methyl-17-(1-oxopropoxy)pregna-1,4-diene-3,20-dione; 9-Chloro-11β,17,21-trihydroxy-16β-methylpregna-1,4-diene-3,20-dione 21-Acetate 17-Propionate;21-(acetyloxy)-9-chloro-11β-hydroxy-16β-methyl-3,20-dioxopregna-1,4-dien-17-yl Propanoate; Beclometasone Dipropionate Impurity B;