Used as a fluorescent probe in biological imaging due to its aggregation-induced emission (AIE) properties, enabling high-contrast cell imaging with low background noise. Serves as a building block in the synthesis of covalent organic frameworks (COFs) for gas storage and catalysis. Applied in optoelectronic devices, such as organic light-emitting diodes (OLEDs), where its rigid structure enhances emission efficiency. Functions as a sensor for detecting explosives like picric acid, leveraging fluorescence quenching upon analyte binding. Also employed in smart materials that respond to mechanical stress with visible fluorescence changes, useful in damage detection coatings.