Sodium Methanesulfonate丨CAS 2386-57-4

Sodium methanesulfonate (CAS 2386-57-4) is a simple sulfonate salt widely used in organic synthesis, chemical manufacturing, and industrial processes. It serves as a mild nucleophile in substitution reactions, particularly for the introduction of methanesulfonyl (mesyl) groups into organic molecules. In pharmaceuticals, it is applied as a reagent or intermediate for synthesizing active pharmaceutical ingredients (APIs) and fine chemicals. In materials science, it can be used in the preparation of specialty surfactants, ionic liquids, and polymeric sulfonates, where the methanesulfonate moiety imparts solubility, ionic character, and thermal stability. It also finds application in analytical chemistry as a standard or buffer component in certain protocols.

The benefits of sodium methanesulfonate stem from its chemical stability, water solubility, and versatility as a nucleophilic sulfonate source. Its salt form makes it easy to handle, store, and incorporate into aqueous or polar reaction systems, reducing the need for hazardous organic reagents. It enables mild reaction conditions, minimizing side reactions and degradation of sensitive molecules. In polymer or surfactant synthesis, it imparts ionic character and solubility, enhancing material performance. Its non-volatile, non-corrosive nature also makes it safer for laboratory and industrial use, while maintaining high reactivity in chemical transformations.