Crystal structure of ethyl (E)-2-cyano-3-(thio­phen-2-yl)acrylate: two conformers forming a discrete disorder

In the title compound, C(10)H(9)NO(2)S, all the non-H atoms, except for the ethyl fragment, lie nearly in the same plane. Despite the mol­ecular planarity, the ethyl fragment presents more than one conformation, giving rise to a discrete disorder, which was modelled with two different crystallographic sites for the eth­oxy O and eth­oxy α-C atoms, with occupancy values of 0.5. In the crystal, the three-dimensional array is mainly directed by C—H⋯(O,N) inter­actions, giving rise to inversion dimers with R (2) (2)(10) and R (2) (2)(14) motifs and infinite chains running along the [100] direction.