Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the production of pyridine-based drugs. It serves in agrochemical formulations for developing herbicides and plant growth regulators. Also utilized in the preparation of ligands for transition metal catalytic reactions, enhancing selectivity in organic transformations. Its aldehyde functionality allows for easy modification in fine chemical synthesis, making it valuable in research laboratories for creating novel compounds. Additionally, applied in photochemistry research and luminescent materials due to tunable fluorescence properties when reacting with certain metals.