Halcinonide Impurity 19

Chemical Name: (6aS,6bR,7S,8aS,12aS,12bS)-6b-fluoro-8b-(2-((1-(2-((6aS,6bR,7S,8aS,8bS,11aR,12aS,12bS)-6b-fluoro-7-hydroxy-6a,8a,10,10-tetramethyl-4-oxo-1,2,4,5,6,6a,6b,7,8,8a,11a,12,12a,12b-tetradecahydro-8bH-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-8b-yl)-2-oxoethoxy)propan-2-yl)oxy)acetyl)-7-hydroxy-6a,8a,10,10-tetramethyl-1,2,5,6,6a,6b,7,8,8a,8b,11a,12,12a,12b-tetradecahydro-4H-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-4-one