6-(3,5-Dimethylbenzyl)-5-ethyl-1-[(2-phenylethoxy)methyl]pyrimidine-2,4(1H,3H)dione

In the title pyrimidine derivative, C24H28N2O3, the uracil unit is essentially planar with an r.m.s. deviation of 0.0054 (1) Å for the eight non-H atoms. The pyrimidine ring is tilted by a dihedral angle of 77.08 (7)° with respect to the aromatic ring of the 3,5-dimethylbenzyl substituent, whereas it is nearly parallel to the benzene ring of the phenethoxymethyl unit, with a dihedral angle of 8.17 (8)°. An intramolecular C—H...O hydrogen bond generates an S(6) ring motif. In the crystal, molecules are linked by a pair of amide–uracil N—H...O hydrogen bonds into an inversion R22(8) dimer. These dimers are stacked along the b axis through π–π interactions with a centroid–centroid distance of 3.9517 (8) Å. Weak C—H...π interactions are also present.