21-Acetyloxy DeschloroMoMetasone Furoate Mometasone 21-acetate (8S,9R,10S,11S,13S,14S,16R,17R)-17-(2-acetoxyacetyl)-9-chloro-11-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl furan-2-carboxylate Mometasone Furoate Impurity 23 Mometasone furoate impurity 52 Pregna-1,4-diene-3,20-dione, 21-(acetyloxy)-9-chloro-17-[(2-furanylcarbonyl)oxy]-11-hydroxy-16-methyl-, (11β,16α)- Carbamazepine Impurity 52