Crystal structure of diethyl 2-amino-5-{4-[bis-(4-methyl-phen-yl)amino]-benzamido}-thio-phene-3,4-di-carboxyl-ate.

The title compound forms a head-to-head centrosymmetric dimer, involving a pair of inter­molecular N—H⋯O hydrogen bonds. It also forms two intra­molecular bonds between its amine and amide and the ester carbonyl groups.