Methanesulfonic acid is widely used as a catalyst in organic synthesis, particularly in esterification and alkylation reactions, due to its strong acidic properties and stability. It is also employed in the electroplating industry as an electrolyte for tin and tin-lead plating, offering better conductivity and smoother deposits compared to traditional acids. In the pharmaceutical industry, it serves as a reagent for producing various active pharmaceutical ingredients (APIs) and intermediates. Additionally, it is utilized in the production of specialty chemicals, such as surfactants and dyes, where its high solubility and low corrosiveness are advantageous. Methanesulfonic acid is also used in the petroleum industry for oil well acidizing to enhance oil recovery. Its environmentally friendly nature, as it is biodegradable, makes it a preferred choice in many industrial applications.