methanesulfonic acid

noun meth·ane·sul·fon·ic acid \ˌme-ˌthān-ˌsəl-ˈfä-nik-, -ˈfō-\
variants: or

methane sulfonic acid

Definition of methanesulfonic acid


  1. :  a corrosive liquid acid CH4O3S that is used especially as a catalyst in chemical reactions (such as polymerization and esterification) Methanesulfonic acid has been developed as an esterification catalyst in place of sulfuric acid for the synthesis of resins in paints and coatings. — Stanley E. Manahan, Toxicological Chemistry and Biochemistry, 2003 The mesylate salt is obtained by reaction with methanesulfonic acid. — Anna M. Wodlinger, Remington: The Science and Practice of Pharmacy, 2005

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capable of being understood in two ways

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