英文别名[2-[(8S,9R,10S,11S,13S,14S,16S,17R)-9-chloro-11,17-dihydroxy-10,13,16-trimethyl-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl]-2-oxoethyl] propanoate; Beclomethasone 21-Monopropionate; Beclomethasone EP Impurity A; Beclomethasone Dipropionate Impurities; Beclometasone Dipropionate EP Impurity A; (11β,16β)-9-Chloro-11,17-dihydroxy-16-Methyl-21-(1-oxopropoxy)-pregna-1,4-diene-3,20-dione; 9-chloro-11beta,17,21-trihydroxy-16beta-methylpregna-1,4-diene-3,20-dione 21-propionate; Pregna-1,4-diene-3,20-dione, 9-chloro-11,17-dihydroxy-16-methyl-21-(1-oxopropoxy)-, (11.beta.,16.beta.)-; 9-Chloro-11β,17-dihydroxy-16β-methyl-21-(1-oxopropoxy)pregna-1,4-diene-3,20-dione 
