Used as a building block in organic synthesis, particularly in the preparation of fluorescent dyes and conjugated polymers. Its aldehyde groups readily undergo condensation reactions, making it valuable in the development of organic semiconductors and optoelectronic materials. It is also employed in the synthesis of macrocyclic compounds and metal-organic frameworks (MOFs) due to its rigid aromatic structure and functional reactivity. Additionally, it serves as a precursor in the fabrication of nonlinear optical materials and sensors.