Used in the synthesis of specialty polymers and pharmaceutical intermediates, this compound serves as a building block in organic reactions where dicarboxylic acid functionality is required. Its aromatic and aliphatic carboxylic groups allow for selective esterification or amidation, making it valuable in developing active pharmaceutical ingredients (APIs) and prodrugs. It is also employed in the preparation of ligands for metal-organic frameworks (MOFs) due to its ability to chelate metal ions. Additionally, it finds use in research settings for designing novel biodegradable materials and functional resins.