Used as a key intermediate in the synthesis of functionalized crown ethers and macrocyclic compounds, this compound enables selective binding of metal ions in analytical and extraction processes. Its bromo terminus allows for further coupling reactions in pharmaceutical and polymer chemistry, particularly in creating polyether-based ligands and sensors. It is also employed in surface modification of nanoparticles and in the development of ion-selective electrodes due to its ability to anchor to surfaces while maintaining ion coordination properties.