Used primarily as an intermediate in organic synthesis, especially in the production of pharmaceuticals, dyes, and stabilizers for polymers. It serves as a building block for ethyleneimine derivatives, which are important in the manufacture of surfactants and corrosion inhibitors. Also employed in the preparation of quaternary ammonium compounds used as biocides and disinfectants. Due to its reactivity, it is valuable in introducing hydroxyethyl or bromoethyl functional groups in complex molecules. Handle with care, as it is toxic and potentially carcinogenic.