Methanesulfonic acid (MSA), the simplest alkanesulfonic acid, is a hygroscopic colorless liquid that freezes around 19 °C. It has similar proprieties respect sulfuric acid, but it does not show its oxidant character.
MSA’s non-volatility and solubility properties make it industrially valuable as a catalyst in organic reactions, mainly for polymerizations, esterifications and transesterificatios, for electroplating bath and as reagent to form amine salts for pharmaceutical drug delivery purposes. 
Another feature that makes MSA convenient for industrial applications is its liquid state at room temperature, while the closely related p-toluenesulfonic acid (PTSA) is solid.
Considering the wide range of applications SIPCAM OXON produces two different grades of the substance for different applications.