Synonyms: Pregna-1,4-diene-3,20-dione,9,11b,21-trichloro-6a-fluoro-16a,17-dihydroxy-, cyclic acetalwith acetone (8CI); 9a,11b,21-Trichloro-6a-fluoro-16a,17a-isopropylidenedioxypregna-1,4-diene-3,20-dione;Pregna-1,4-diene-3,20-dione, 9,11b,21-trichloro-6a-fluoro-16a,17-dihydroxy-,cyclic 16,17-acetal with acetone; RS 4464; Triclonide