Used as an intermediate in the synthesis of pharmaceuticals and fine chemicals, particularly in the development of non-steroidal anti-inflammatory drugs (NSAIDs) and other bioactive molecules. Its functional groups—aldehyde and carboxylic acid—allow for versatile chemical modifications, enabling the formation of esters, amides, and Schiff bases. Commonly employed in organic synthesis routes requiring biphenyl scaffolds with specific substitution patterns for drug discovery and material science applications.