It is a colorless, crystalline, unpleasant-smelling solid.

It was first prepared in 1976 by the reaction of bis(chloromethyl) sulfoxide with sodium sulfide to give 1,3-dithietane 1-oxide, followed by THF-borane reduction.

Examples of compounds bearing this functional group include the antibiotic Cefotetan and the pesticide Fosthietan.

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