Used in the synthesis of pharmaceuticals, particularly in the production of ephedrine and other alkaloids. It serves as a key intermediate in the manufacture of various agrochemicals, including herbicides and pesticides. Also employed in organic synthesis for creating dyes, rubber chemicals, and surfactants. In the laboratory, it is utilized as a reagent for methylation reactions and in the preparation of other chemical compounds. Its role in the production of N-methylated compounds is significant in both industrial and research settings.