(2E)-3-(4-Eth­oxy­phen­yl)-1-(2-methyl-4-phenyl­quinolin-3-yl)prop-2-en-1-one monohydrate

The title hydrate, C(27)H(23)NO(2)·H(2)O, features an almost planar quinoline residue (r.m.s. deviation = 0.015 Å) with the benzene [dihedral angle = 63.80 (7) °] and chalcone [C—C—C—O torsion angle = −103.38 (18)°] substituents twisted significantly out of its plane. The configuration about the C=C bond [1.340 (2) Å] is E. In the crystal, mol­ecules related by the 2(1) symmetry operation are linked along the b axis via water mol­ecules that form O—H⋯O(c) and O—H⋯N(q) hydrogen bonds (c = carbonyl and q = quinoline). A C—H⋯O inter­action also occurs.