Diflucortolone Valerate Impurity 13

Chemical Name: 2-((6R,8S,9S,10R,11S,13S,14S,16R,17S)-4,6-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, Δ4 diflucortolone valerate（JP）

Synonym: (R)-N-((R)-1-(naphthalen-1-yl)ethyl)-2-(3-(trifluoromethyl)phenyl)propan-1-amine