9-Bromo-11,17-dihydroxy-6-methyl-3,20-dioxopregna-1,4-dien-21-yl acetate 93052-90-5 AIDS-125138 AIDS125138 NSC63539 Prednisolone, 9-bromo-6.alpha.-methyl-, 21-acetate Pregna-1, 4-diene-3,20-dione, 9-bromo-11.beta.,17, 21-trihydroxy-6.alpha.-methyl-, 21-acetate