5-(4-Fluoro-phen-yl)-5-methyl-imidazolidine-2,4-dione

In the title compound, C(10)H(9)FN(2)O(2), the dihedral angle between the hydantoin unit and the benzene ring is 65.55 (5)°. The atoms in the hydantoin ring are coplanar, with a mean deviation of 0.015 Å and a maximum deviation of 0.075 (2) Å for one carbonyl O atom. N-H⋯O hydrogen bonds link the mol-ecules into one-dimensional chains, with one carbonyl group acting as a bifurcated acceptor and the other accepting no hydrogen bonds.