Used as a reagent in organic synthesis, particularly in the preparation of pharmaceuticals and agrochemicals. It serves as an ethylamine source in reactions where controlled release of the amine is required. Commonly employed in the synthesis of active pharmaceutical ingredients (APIs) due to its stability and reactivity profile. Also utilized in the development of dyes and functional materials where amine functionality is needed. Its hydrobromide salt form enhances solubility and handling in polar reaction media.