S,S'-Dimethyl dithiocarbonate

S,S-Dimethyl dithiocarbonate' is an organic compound with the chemical formula OC(SCH3)2. It is a colorless liquid. It is a methyl ester of dithiocarbonic S,S-acid (OC(SH)2). It is a thioester (the prefix thio- means that an oxygen atom in the compound is replaced by a sulfur atom). It is an analog of dimethyl carbonate (OC(OCH3)2), where the two oxygen atoms from the \sOCH3 groups are replaced by sulfur atoms. In terms of the name of this thioester, it is derived from an esterification of dithiocarbonic S,S-acid with methanethiol.

Uses
S,S'-Dimethyl dithiocarbonate is used as a dehydrating agent in chemistry and as a carbonylating agent. It can be used as a source of a methanethiolate (CH3S−).

Hazards and toxicity
S,S′-Dimethyl dithiocarbonate is a skin, eye, and respiratory system irritant; it can be absorbed into the body through the skin, causing damage to the body. It may cause damage to gastrointestinal system if it is swallowed. S,S′-Dimethyl dithiocarbonate is combustible. Upon catching fire, irritating and toxic fumes and gases, such as carbon monoxide (CO), carbon dioxide (CO2), and sulfur dioxide (SO2), are released. It may react violently with strong oxidizing agents.