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1-Ethyl-3-methylimidazolium ethyl sulfate is a water-miscible, aprotic room temperature ionic liquid (RTIL). It can be prepared by reacting 1-methylimidazole with diethyl sulfate.
EI-0195 (OTTO) 1-Ethyl-3-methylimidazolium ethyl sulphate, ≥95% Cas 342573-75-5 - used to study its effect as a solvent on the thermal stability of lysozyme.