Abstract: | The title compound, C10H16N2O2S2, is considered to maintain an inner‐salt structure in the crystal, where the planes of the carbenium and the thiocarboxylate moieties are nearly perpendicular to each other 77 (2)°], and the backbone C—C bond length N2C—CS2 1.510 (2) Å] is significantly shorter than a normal C—C single‐bond length. |