Diflucortolone Valerate Impurity 7

Chemical Name: 2-((4aS,4bS,5aS,6aS,7S,8R,9bS,11S)-11-fluoro-4a,6a,8-trimethyl-2-oxo-2,4a,5a,6,6a,7,8,9,9a,9b,10,11-dodecahydrocyclopenta[1,2]phenanthro[4,4a-b]oxiren-7-yl)-2-oxoethyl pentanoate