Crystal structure of p-toluene-sulfonyl-methyl isocyanide.

The mol-ecule of the commercially available title compound, C9H9NO2S, has crystallographically imposed mirror symmetry, the mirror plane passing through the isocyanide group and the para-C atoms, the methyl C atom and the S atom of the methyl 4-tolyl sulfone moiety. In the crystal, C-H⋯O hydrogen-bond inter-actions link the mol-ecules into chains running parallel to the b axis.