Used as a highly effective fluorescent sensor for detecting metal ions, particularly in environmental and biological systems. Its structure allows selective binding to copper, mercury, and other transition metal ions, resulting in measurable changes in fluorescence intensity. This makes it valuable in monitoring water quality and cellular imaging. Also applied in supramolecular chemistry for constructing metal-organic frameworks due to its rigid, tripodal configuration. Exhibits good thermal stability and photostability, suitable for use in solid-state sensors and optoelectronic devices.