Used as a diamine monomer in the synthesis of high-performance polyimides and polyamides. Its rigid, conjugated structure enhances thermal stability and mechanical strength of the resulting polymers. Commonly applied in aerospace, electronics, and semiconductor industries for manufacturing heat-resistant films, coatings, and insulating materials. Also utilized in gas separation membranes due to its well-defined molecular geometry and chemical robustness. Shows promise in optoelectronic applications, such as organic light-emitting diodes (OLEDs), because of its favorable electronic properties and film-forming ability.