Dexamethasone Impurity 19

Chemical Name: 1-((2R,2aS,2a1S,3aS,3a1R,5R,6R,9aR)-3a1-fluoro-2,5-dihydroxy-2a1,4a,6-trimethyl-2-vinyltetradecahydro-2H-1,3-dioxadicyclopenta[bc,h]acenaphthylen-5-yl)-2-hydroxyethan-1-one

Synonym: (2S,3S,4S,5R,6R)-6-(((2R,3S)-1-((4-amino-N-isobutylphenyl)sulfonamido)-3-(((((3R,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-yl)oxy)carbonyl)amino)-4-phenylbutan-2-yl)oxy)-3,4,5-trihydroxytetrahydro-2H-pyran-2-carboxylic acid