2-(2-Nitro-phenyl-sulfin-yl)acetonitrile.

In the title compound, C8H6N2O3S, the dihedral angle between the nitro group and the benzene ring is 6.76 (9)°. The bond-angle sum at the S atom is 308.1°. In the crystal, mol­ecules are linked by C—H⋯O hydrogen bonds to generate (010) sheets. The crystal studied was found to be a racemic twin.