Used as a fluorescent probe in biochemical and analytical applications due to its strong emission properties. Commonly employed in the detection of enzyme activity, particularly esterases, where enzymatic cleavage releases the fluorescent coumarin derivative. Also utilized in the development of sensors for metal ions and reactive oxygen species owing to its sensitivity to microenvironment changes. Applied in imaging studies at the cellular level for real-time monitoring of biological processes. Its derivatization allows incorporation into polymers or surfaces for use in optoelectronic devices or biosensors.