Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of cardiovascular drugs. Its aldehyde and carboxylic acid functional groups allow for versatile chemical modifications, enabling the formation of esters, amides, and Schiff bases. Commonly employed in the preparation of prodrugs and drug conjugates due to its ability to link active pharmaceutical ingredients through ester or amide bonds. Also utilized in the design of novel compounds with improved solubility and bioavailability.