Beclometasone (Beclomethasone) Dipropionate EP Impurity D Catalogue L326514 CAS 52092-14-5 M.W 565.50 M.F C28H37BrO7 Specifications FAQs (8S,9R,10S,11S,13S,14S,16S,17R)-9-bromo-11-hydroxy-10,13,16-trimethyl-3-oxo-17-(2-(propionyloxy)acetyl)-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl propionate