Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of targeted cancer therapies and antibody-drug conjugates (ADCs). Its alkyne group enables efficient conjugation via click chemistry, especially in bioconjugation applications where selective and stable linkage between biomolecules and drugs is required. Also utilized in polymer chemistry to introduce amine functionality into materials, enhancing reactivity or enabling further modification in coatings, adhesives, and functional resins. Its dual ether and amine structure improves solubility and flexibility in molecular design, making it valuable in optimizing drug delivery systems and diagnostic agents.