perfluoro-(4-methyl-[1,1':4',1'':4'',1''']-quaterphenyl)

2,3,5,6-tetrafluoro-4-(2,3,4,5,6-pentafluorophenyl)benzoic acid

1,2,5-trifluoro-3-(trifluoromethyl)benzene

2-[2,3,5,6-tetrafluoro-4-(trifluoromethyl)phenyl]propanedinitrile

4-chloro-2,3,5,6-tetrafluorobenzoic acid