Clc1cccc(Cl)c1C(F)(F)F.Clc2ccc(c(Cl)c2)C(F)(F)F.Clc3ccc(Cl)c(c3)C(F)(F)F.Clc4cc(Cl)cc(c4)C(F)(F)F.Clc5ccc(cc5Cl)C(F)(F)F