An industrial chemical (sulfuric acid dimethyl ester (CH3)2SO4), used in synthesis as an alkylating agent; it causes nystagmus, convulsions, and death from pulmonary complications.
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dimethyl sulfate n a carcinogenic sulfate (CH3)2SO4 containing two methyl groups that is esp. irritating to the respiratory tract
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di·meth·yl sul·fate (di-methґəl sulґfāt) a colorless liquid used in adhesives and as a methylating agent for organic chemicals; it is severely irritant to the skin and mucous membranes and is carcinogenic.Medical dictionary. 2011.