Used in the synthesis of pharmaceuticals and organic electronic materials due to its conjugated aromatic structure and amine functionality. Its aldehyde group allows for easy modification in multi-step organic reactions, making it valuable in creating complex molecules. Commonly employed in the development of dyes, fluorescent probes, and optoelectronic devices like OLEDs. Also serves as an intermediate in the preparation of kinase inhibitors and other biologically active compounds in medicinal chemistry research.