In the title compound, C(22)H(23)BrN(4)O(4)S(2), the benzene rings bridged by the sulfonamide group are tilted relative to each other by 68.9 (1)° and the dihedral angle between the sulfur-bridged pyrimidine and benzene rings is 69.7 (1)°. The mol-ecular conformation is stabilized by a weak intra-molecular π-π stacking inter-action between the pyrimidine and the 4-methylbenzene rings [centroid-centroid distance = 3.934 (2) Å]. The morpholine ring adopts a chair conformation and is disordered over two positions with an occupancy ratio of 0.853 (6):0.147 (6). In the crystal, mol-ecules are linked by N-H⋯O hydrogen bonds into chains extending along the a axis and further, through C-H⋯N and C-H⋯O inter-actions, into a three-dimensional supramolecular structure.