In the crystal structure of the title compound, C3H3NO2S2, the four-membere
d C2S2 ring is planar, as is the whole molecule. The short intramolecular S
... O distance of 2.687 (2) Angstrom shows the five-atom system to be conj
ugated. The molecules pack as a two-dimensional network in the (010) plane
through short intermolecular S ... O [2.900 (2) and 3.077 (2) Angstrom] int
eractions.