Used as a macrocyclic ligand in coordination chemistry, particularly for binding alkali and alkaline earth metal ions. Its crown ether-like structure enables selective ion transport across membranes, making it useful in ion-selective electrodes and sensors. Also employed in supramolecular chemistry for constructing molecular assemblies and host-guest systems. Shows potential in catalysis by stabilizing reactive intermediates through metal complexation. Investigated for applications in drug delivery systems due to its ability to encapsulate cations and improve solubility of ionic species.