Used in organic synthesis and pharmaceutical research, particularly in the development of fluorescent probes and bioimaging agents due to its strong photoluminescent properties. Its structure supports conjugation in optoelectronic materials, making it valuable in materials science for creating sensors and light-emitting devices. Also serves as a building block in medicinal chemistry for designing kinase inhibitors and anticancer agents. The ethynyl group enables click chemistry reactions, facilitating labeling and conjugation in biochemical applications.