Ethyl 6-methyl-2-oxo-4-[4-(1H-tetra­zol-5-yl)phen­yl]-1,2,3,4-tetra­hydro­pyrimidine-5-carboxyl­ate–di­methyl­formamide–water (2/1/1)

The asymmetric unit of the title compound, 2C(15)H(16)N(6)O(3)·C(3)H(7)NO·H(2)O, contains two independent ethyl 6-methyl-2-oxo-4-[4-(1H-tetra­zol-5-yl)phen­yl]-1,2,3,4-tetra­hydro­pyrim­id­ine-5-carboxyl­ate mol­ecules, in which the dihedral angles between the tetra­zole and benzene rings are 20.54 (12) and 12.13 (12)°. An intra­molecular C—H⋯O hydrogen bond occurs in each mol­ecule. In the crystal, N—H⋯O, N—H⋯N, O—H⋯O and O—H⋯N hydrogen bonds, as well as weak C—H⋯O and C—H⋯N hydrogen bonds, link the mol­ecules into a three-dimensional supra­molecular architecture. π–π stacking is also observed between parallel tetra­zole rings of adjacent mol­ecules, the centroid–centroid distance being 3.482 (6) Å.