The structure of 2-(3′-methyl-4′-nitrophenoxy)-1,3-diisopropylbenzene, C19H23NO3, has been determined by X-ray diffraction. The crystals are triclinic,a = 12.422(24),b = 13.180(25),c = 11.241(30) Å, α = 89.99(20), β = 95.81(15), γ = 105.46(12)°,withZ = 4. The intensities of 8153 independent reflections were measured on a four circle diffractometer, of which 3701 were used in the refinement of the structure to give a final least-squares weighted residue of 0.053.The ether oxygen bond angle in each of the two independent molecules is 120°. The two phenyl rings are nearly orthogonal in each case, while the ring containing the electron withdrawing nitro group is conjugated with the ether oxygen atom. The rings show significant deviations from hexagonal symmetry and the nitro-substituted ring is bent away from the other ring.