... -difluoro-11,17-dihydroxy-16-methyl-3-oxo-, (6a,11b,16a,17a) Fluticasone IntermediateAndrosta-1,4-diene-17-carboxylic acid, 6 ... -difluoro-11,17-dihydroxy-16-methyl-3-oxo-, (6a,11b,16a,17a)- Molecular Formula:C22H28F2O5Molecular Weight:410.454CAS NO.:28416-84 ...