Used as a fluorescent sensor for metal ion detection, particularly effective in identifying copper(II) ions in environmental and biological samples. Its structure allows selective binding to metal ions, resulting in measurable changes in fluorescence intensity. Employed in chemosensor development due to high sensitivity and selectivity in aqueous and organic solvent mixtures. Also investigated for use in molecular recognition and supramolecular chemistry applications, where thiophene groups enhance electronic properties and facilitate signal transduction.