Used as an intermediate in organic synthesis, particularly in the production of pharmaceuticals and fine chemicals. It plays a role in the synthesis of certain biodegradable polymers and can be involved in metabolic studies. Due to its hydroxyl and carboxylic acid functional groups, it serves as a building block for esters and lactones, which are useful in flavor and fragrance industries. Also investigated for potential use in the development of drug delivery systems and biocompatible materials.