Used as a key intermediate in organic synthesis, particularly in the preparation of conjugated polymers and organic semiconductors. Its aldehyde functional groups allow for easy incorporation into π-conjugated systems, making it valuable in the development of materials for organic photovoltaics (OPVs) and organic light-emitting diodes (OLEDs). Also employed in the synthesis of Schiff bases and coordination compounds with metal ions, useful in sensors and catalysis. Additionally, it serves as a building block in pharmaceuticals and agrochemicals due to its aromatic and reactive nature.