2-(5-Bromo­thio­phen-2-yl)-5-[5-(10-ethyl­phenothia­zin-3-yl)thio­phen-2-yl]-1,3,4-oxadiazole

The mol­ecule of the title compound, C24H16BrN3OS3, contains three approximately planar fragments, viz. an oxadiazole ring plus two adjacent thio­phene groups, and two phenothia­zine benzene rings, with largest deviations from the least-squares planes of 0.051 (3), 0.019 (4) and 0.014 (3) A, respectively. The phenothia­zine unit adopts a butterfly conformation, with a dihedral angle of 38.06 (15)° between the terminal benzene rings. The dihedral angle between the 2,5-bis­(thio­phen-2-yl)oxadiazole unit and the attached benzene ring is 15.35 (11)°. In the crystal, mol­ecules form stacks along the b-axis direction; neighboring mol­ecules within the stack are related by inversion centers, with shortest inter­centroid separations of 3.741 (2) and 3.767 (2) A.