Fluticasone Propionate EP Impurity I Catalogue B496459 CAS 960071-64-1 M.W 967.16 M.F Molecular Formula: Specifications FAQs Synonyms: 17,17′-(Trisulphanediyldicarbonyl)bis(6α,9-difluoro-11β-hydroxy-16α-methyl-3-oxoandrosta-1,4-dien-17α-yl) dipropanoate