Used as a monomer in the production of biodegradable polyesters, particularly in synthesizing poly(hydroxyalkanoates) (PHAs), which are important in eco-friendly plastics. It contributes to polymer chains with moderate flexibility and degradation rates, making it suitable for biomedical applications such as drug delivery systems and tissue engineering scaffolds. Also explored in the synthesis of specialty esters for use in lubricants and plasticizers due to its hydroxyl and carboxylic acid functionality. Its ability to form hydrogen bonds enhances material compatibility in polymer blends.