Used as a selective ionophore in ion-selective electrodes, particularly for detecting ammonium and potassium ions due to its high binding affinity for these cations. Its structure allows integration into membrane matrices where it enhances sensor selectivity and sensitivity. Also employed in supramolecular chemistry for designing host-guest systems and molecular recognition studies. Finds application in analytical chemistry for separation and sensing of biologically relevant ions. Additionally, it serves as a building block in synthesizing functionalized crown ether derivatives for catalysis and ion transport research.