Difluprednate Impurity 1

Chemical Name: (6S,8S,9R,10S,11S,13S,14S)-6,9-difluoro-11,17-dihydroxy-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15-decahydro-3H-cyclopenta[a]phenanthren-3-one

Synonym: (1R,1'R,2S,2'S)-2,2'-((((E)-oct-4-enedioyl)bis(oxy))bis(propane-3,1-diyl))bis(6,7-dimethoxy-2-methyl-1-(3,4,5-trimethoxybenzyl)-1,2,3,4-tetrahydroisoquinolin-2-ium) chloride

Smile: O=C1C=C[C@@]2(C)C([C@@H](F)C[C@]3([H])[C@]2(F)[C@@H](O)C[C@@]4(C)[C@@]3([H])CC=C4O)=C1