Fluticasone Furoate 1,2 dihydro Sulfenic Acid Impurity

Chemical Name: (6S,8S,9R,10S,11S,13S,14S,16R,17R)-6,9-difluoro-17-((furan-2-carbonyl)oxy)-11-hydroxy-10,13,16-trimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carbo(thioperoxoic )O-acid

Smile: O[C@H]1C[C@@]2(C)[C@](C[C@@H](C)[C@]2(OC(C3=CC=CO3)=O)C(SO)=O)([H])[C@]4([H])C[C@H](F)C5=CC(CC[C@]5(C)[C@]41F)=O