2-Aminomethyl-18-crown-6 is widely used in the field of supramolecular chemistry due to its ability to selectively bind cations, particularly potassium ions. Its crown ether structure enables it to form stable complexes with metal ions, making it valuable in ion transport studies and the development of ion-selective electrodes. This compound is also employed in the synthesis of complex molecular structures, where it acts as a ligand to stabilize metal ions in catalytic processes. Additionally, it finds applications in analytical chemistry for the separation and detection of specific ions in mixtures. Its unique properties make it a useful tool in research involving molecular recognition and the design of functional materials.