17-Hydroxy-6-methylpregna-4,6-diene-3,20-dione 3562-63-8 EINECS 222-628-6 HSDB 3233 MEGESTROL Megestrolo [DCIT] Megestrolum [INN-Latin] Pregna-4,6-diene-3,20-dione, 17-hydroxy-6-methyl-