Tags: Chemical Compound, Chemical Substance.
Methanesulfonic acid is a colorless liquid with the chemical formula CH3SO3H. It is the simplest of the alkylsulfonic acids. Salts and esters of methanesulfonic acid are known as mesylates (or methanesulfonates as in ethyl methanesulfonate). Methanesulfonic acid is used as an acid catalyst in organic reactions because it is a non-volatile strong acid that is soluble in organic solvents.
