Crystal structure of O-ethyl N-(eth­oxy­carbon­yl)thio­carbamate

The title compound, C(6)H(11)NO(3)S, provides entries to novel carbamoyl disulfanes and related compounds of inter­est to our laboratory. The atoms of the central O(C=S)N(C=O)O fragment have an r.m.s. deviation of 0.1077 Å from the respective least-squares plane. While several conformational orientations are conceivable, the crystal structure shows only the one in which the carbonyl and the thio­carbonyl moieties are anti to each other across the central conjugated C—N—C moiety. Pairs of 2.54 Å N—H⋯S=C hydrogen bonds between adjacent mol­ecules form centrosymmetric dimers in the crystal.