The maleonitrile moiety of the title compound, (2Z)-2, 3-bis[(4-nitrobenzyl)sulfanyl]but-2-enedinitrile, C(18)H(12)N(4)O(4)S(2), is almost planar. The two benzene rings are nearly parallel to each other and perpendicular to the maleonitrile plane. Intermolecular S.S and pi-pi interactions are observed in the crystal structure.