Dimethyl sulfate is a chemical compound with formula (CH3O)2SO2. As the diester of methanol and sulfuric acid, its formula is often written as (CH3)2SO4 or even Me2SO4, where CH3 or Me is methyl. Me2SO4 is mainly used as a methylating agent in organic synthesis.
Under standard conditions, Me2SO4 is a colourless oily liquid with a slight onion-like odour (although smelling it would represent significant exposure). Like all strong alkylating agents, Me2SO4 is highly toxic. Its use as a laboratory reagent has been superseded to some extent by methyl triflate, CF3SO3CH3, the methyl ester of trifluoromethanesulfonic acid.
Other articles related to "dimethyl sulfate":
... Dimethyl sulfate is likely carcinogenic and mutagenic, poisonous, corrosive, environmentally hazardous and volatile (presenting an inhalation hazard) ... Dimethyl sulfate is absorbed through the skin, mucous membranes, and gastrointestinal tract ... contaminated equipment, but the reaction may become violent with larger amounts of dimethyl sulfate (see ICSC) ...