Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and agrochemicals. It serves as a building block in the development of sulfonamide-based compounds, which are known for their biological activity, including antimicrobial and anti-inflammatory properties. Its carboxylic acid functionality allows for easy derivatization, enabling incorporation into more complex molecules. Also employed in the synthesis of liquid crystals and functional polymers due to its rigid aromatic structure and polar groups.