Fluticasone Propionate EP Impurity H Catalogue B496458 CAS 201812-64-8 M.W 935.09 M.F C48H58F4O10S2 Specifications FAQs Synonyms: 17,17′-(Disulphanediyldicarbonyl)bis(6α,9-difluoro-11β-hydroxy-16α-methyl-3-oxoandrosta-1,4-dien-17α-yl) dipropanoate