Ethyl 3-bromo-4-cyano-5-[(2-eth­oxy-2-oxoeth­yl)sulfan­yl]thio­phene-2-carboxyl­ate

The title compound, C₁₂H₁₂BrNO₄S₂, was obtained by the Sandmeyer reaction from ethyl 3-amino-4-cyano-5-[(2-eth­oxy-2-oxoeth­yl)sulfan­yl]thio­phene-2-carboxyl­ate. The dihedral angle between the thiophene ring and linked CO₂ ester group is 2.0 (5)°.