Used as a reactive diluent and crosslinking agent in epoxy resin systems, improving flexibility and reducing viscosity without compromising thermal stability. Commonly applied in coatings, adhesives, and composite materials where enhanced toughness and moisture resistance are required. Its hydroxyl groups enable participation in polymerization reactions, making it suitable for UV-curable formulations and specialty polymers. Also found in some dental materials due to its biocompatibility and ability to form durable, transparent networks.