2-((6R,8S,9S,10R,11R,12R,13S,14S,16R,17S)-6,12-difluoro-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)-2-oxoethyl pentanoate, 12α diflucortolone valerate(JP),"2-((6S,8S,9S,10R,11R,12R,13S,14S,16R,17S)-6,12-difluoro-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)-2-oxoethyl pentanoate",Diflucortolone Valerate Impurity