Used as a fluorescent dye in bioimaging and sensing applications due to its strong emission and high photostability. Commonly applied in cellular imaging to label membranes and lipid droplets. Exhibits environment-sensitive fluorescence, making it useful in probing polarity and viscosity in biological systems. Also employed in optoelectronic devices and as a sensor for metal ions in solution. Its large Stokes shift and two-photon absorption properties enable deep-tissue imaging with reduced background interference.