N,N'-Dibenzyl-4,13-diaza-18-crown 6-Ether is primarily used in the field of supramolecular chemistry due to its ability to form stable complexes with various metal ions. Its crown ether structure allows it to selectively bind cations, making it valuable in ion transport studies and the development of ion-selective sensors. This compound is also employed in organic synthesis as a phase-transfer catalyst, facilitating reactions between reactants in different phases. Additionally, it finds applications in the extraction and separation of metal ions, particularly in analytical chemistry and environmental testing. Its unique structure and binding properties make it a useful tool in research focused on molecular recognition and host-guest chemistry.