Dimethyl N-cyanodithioiminocarbonate

The title compound, C4H6N2S2, crystallizes with four independent molecules in the asymmetric unit. Two of the molecules are disordered about a pseudo twofold rotation axis. The mean values of the C—N bonds are 1.143 (5) Å for C[triple-bond]N, 1.302 (5) Å for C=N and 1.341 (5) Å for the C—N single bond. In the crystal, molecules are linked via C—H...N hydrogen bonds, forming slabs parallel to the bc plane.