Used as a specialty diamine monomer in high-performance polymer synthesis, particularly in the production of polyimides and polyamides. Its rigid, conjugated structure enhances thermal stability and mechanical strength of the resulting polymers. Commonly applied in aerospace, electronics, and optoelectronic materials due to its ability to promote charge transport and improve film-forming properties. Also investigated for use in conductive coatings and organic semiconductors because of its extended pi-conjugation system.