Used as a key intermediate in the synthesis of pharmaceuticals and agrochemicals, particularly in the development of nicotinamide-based compounds. Its structure allows for the formation of nitrogen-containing heterocycles, which are common motifs in bioactive molecules. It is also employed in the preparation of ligands for catalytic reactions and in the fabrication of organic semiconductors due to its conjugated aromatic system. Additionally, it serves as a building block in the synthesis of fluorescent dyes and sensors, where the aldehyde group enables easy functionalization for probe design.