3-(2-Bromo-eth-yl)-5,5-di-phenyl-imidazolidine-2,4-dione.

The imidazolidine ring in the title mol-ecule, C 17 H 15 BrN 2 O 2 , is slightly ruffled [r.m.s. deviation = 0.0192 Å], while the attached phenyl rings at the C atom at the position between the amine and carbonyl centres are rotated well out of its mean plane [dihedral angles with the imidazolidine ring = 63.60 (8) and 76.4 (1)°]. In the crystal, a three-dimensional network features N-H⋯O and C-H⋯O hydrogen bonds together with C-H⋯π(ring) inter-actions.