Clobetasone Butyrate EP Impurity F

Chemical Name: 16α-methyl clobetasone butyrate ; 21-chloro-9-fluoro-16α-methyl-3,11,20-trioxopregna-1,4-dien-17-yl butanoate; 16α-methyl clobetasone butyrate;

Smile: CCCC(O[C@@](C(CCl)=O)([C@]1(C2)C)[C@H](C)C[C@@]1([H])[C@]3([H])CCC4=CC(C=C[C@]4(C)[C@@]3(F)C2=O)=O)=O