2135-17-3 6,9-Difluoro-11,17,21-trihydroxy-16-methylpregna-1,4-diene-3,20-dione 6.Alpha., 9-Difluoro-11.beta.,17,21-trihydroxy-16.alpha.-methylpregna-1, 4-diene-3,20-dione 6.Alpha., 9.alpha.-Difluoro-16.alpha.-methylprednisolone 6.alpha.-Fluorodexamethasone AIDS-124831 AIDS124831 Anaprime Aniprime Cortexilar Flucort Flucorticin Flumethason Flumethasone Fluvet Methagon NSC54702 Pregna-1,4-diene-3,20-dione, 6,9-difluoro-11,17, 21-trihydroxy-16-methyl-, (6.alpha.,11.beta.,16.alpha.)- Pregna-1,4-diene-3,20-dione, 6.alpha.,9-difluoro-11.beta.,17,21-trihydroxy-16.alpha.-methyl- RS 2177 RS-2177