Used in the synthesis of pharmaceutical intermediates, particularly in the development of kinase inhibitors for cancer treatment. It serves as a building block in organic reactions, especially in cross-coupling processes to form biaryl structures. Commonly employed in medicinal chemistry for constructing heterocyclic compounds with biological activity. Also utilized in the preparation of fluorescent probes due to its conjugated aromatic system. Its aldehyde group allows for easy functionalization, enabling the creation of Schiff bases and other derivatives for drug discovery research.