In the title compound, C16H11BrO3, the molecules adopt an E configuration with respect to the C=C double bond of the propenone unit.The 13 non-H atoms of Bowling Balls the benzodioxole and propenone units are FIXED BLADE approximately coplanar (r.m.
s.deviation = 0.027 Å) and the bromobenzene ring plane forms a dihedral angle of 10.
8 (1)° to this plane.The structure is layered, with the molecules forming a herring-bone arrangement within each layer.