Used as a reagent in organic synthesis, particularly in the preparation of pharmaceuticals, agrochemicals, and dyes. Serves as a source of dimethylamine in methylation reactions and in the production of surfactants and corrosion inhibitors. Commonly employed in the synthesis of dimethylalkylamines and quaternary ammonium compounds used in fabric softeners and disinfectants. Also utilized in analytical chemistry for derivatization and detection of certain functional groups.