3-(4-Bromo-phenyl-sulfon-yl)-8-methyl-1,3-diaza-spiro-[4.5]decane-2,4-dione.

The crystal structure of the title compound, C(15)H(17)BrN(2)O(4)S, is stabilized by inter-molecular N-H⋯O hydrogen bonds which link the mol-ecules into centrosymmetric dimers. The dihedral angle subtended by the 4-bromo-phenyl group with the mean plane passing through the hydantoin unit is 83.29 (5)°. The cyclo-hexyl group adopts an ideal chair conformation with the methyl group in an equatorial position.