Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and bioactive molecules. Its hydroxyl groups allow for functionalization in multi-step reactions, making it valuable in constructing complex molecular frameworks. Commonly employed in the development of prodrugs and polymer-based drug delivery systems due to its biocompatibility and solubility-modifying properties. Also finds use in the synthesis of surfactants and specialty polymers where controlled hydrophilicity and linker flexibility are required.