Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the production of antitubercular drugs like pyrazinamide and related derivatives. It serves as a building block in the development of nitrogen-containing heterocyclic compounds, which are important in medicinal chemistry. Also employed in the preparation of fluorescent dyes and sensors due to its ability to form conjugated systems. Its aldehyde group allows for easy functionalization, making it valuable in organic synthesis for creating Schiff bases and other imine derivatives used in coordination chemistry and catalysis. Additionally, it finds use in the flavor and fragrance industry for imparting nutty, roasted aromas in food and perfume formulations.