Crystal structure of 5,5-bis(4-methylbenzyl)pyrimidine-2,4,6(1H,3H,5H)-trione monohydrate

The asymmetric unit of the title compound, C20H20N2O3·H2O, contains two independent molecules (A and B), with similar conformations and two independent water molecules. In the crystal, N—H...O and Owater—H...O hydrogen bonds link all moieties into two crystallographically independent kinds of sheets parallel to the ac plane. These independent sheets, each containing either A or B molecules, are further alternately stacked along the b axis and interconnected via C—H...πaryl interactions