Synonyms: Pregna-1,4-diene-3,20-dione,9-chloro-11b,17,21-trihydroxy-16b-methyl-, 17-propionate (8CI);Pregna-1,4-diene-3,2O-dione, 9-chloro-11b,17,21-trihydroxy-16b-methyl-, 17-propionate (7CI); Beclomethasone17-monopropionate; Beclomethasone 17-propionate