Fluticasone Propionate EP Impurity A Catalogue B496451 CAS 65429-42-7 M.W 452.49 M.F C24H30F2O6 Specifications FAQs Synonyms: (6S,8S,9R,10S,11S,13S,14S,16R,17R)-6,9-difluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-17-(propionyloxy)-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carboxylic acid