Abstract
In the title compound, C17H16BrN3O2S, the two fused rings are twisted by a dihedral angle of 6.61 (15)degrees. The thiazine ring adopts a sofa conformation. The toluene ring is oriented at dihedral angles of 15.5 (2) and 20.6 (2)degrees with respect to the bromobenzene and thiazine rings, respectively. The benzylidene system is approximately planar [r.m.s. deviation = 0.0388 angstrom]. In the cyrstal, weak intermolecular C-H center dot center dot center dot O hydrogen bonds connects the molecules into a chain along the b axis.