Perfluorinated 6-isopropyl-2,4,5-trimethyl­benzonitrile

In the title compound, 3-fluoro-6-[1,2,2,2-tetrafluoro-1-(tri­fluoro­methyl)ethyl]-2,4,5-tris(trifluoro­methyl)benzonitrile, C₁₃F₁₇N, the benzene ring is puckered due to steric repulsion between substituents.