Used as a colorimetric and fluorogenic chemosensor in analytical chemistry, particularly for the detection of reactive oxygen species and thiols due to its ability to undergo nucleophilic addition reactions that result in visible color changes. Its structure allows for intramolecular charge transfer, making it useful in the design of molecular probes and switches. Also employed in the development of smart materials and biosensors where real-time monitoring of biological redox processes is required. Shows potential in environmental monitoring for detecting nucleophilic pollutants.