Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of bioactive molecules and heterocyclic compounds. Its structure supports the formation of complex ring systems found in certain drug candidates. Commonly employed in organic synthesis to build pyran-based frameworks, which are prevalent in natural products and medicinal chemistry. Also utilized in the preparation of specialty polymers and functional materials due to its bifunctional carboxylic acid groups and cyclic ether moiety.