Used as a molecular recognition agent in sensors and separation technologies due to its ability to selectively bind cations and neutral molecules. Applied in environmental analysis for detecting heavy metal ions and organic pollutants. Employed in drug delivery systems to improve solubility and stability of pharmaceutical compounds. Serves as a building block in supramolecular chemistry for constructing host-guest complexes and nanostructured materials. Also utilized in catalysis as a nanoreactor with confined spaces that enhance reaction selectivity.