Used as a key intermediate in the synthesis of liquid crystal monomers, particularly in the production of reactive mesogens for advanced display technologies. Its dual carboxylic acid functionality allows for esterification with alcohols or phenols, enabling the construction of rigid, rod-like molecules essential for liquid crystal behavior. Also employed in polymer chemistry to introduce aromatic and carboxylate groups into polyesters and copolymers, enhancing thermal stability and adhesion properties. Additionally, it serves as a building block in organic synthesis where controlled molecular rigidity and polarity are required.