Used as a multifunctional thiol crosslinking agent in UV-curable resin systems, enabling rapid curing under ultraviolet light. It is widely applied in coatings, inks, and adhesives due to its ability to form dense, durable networks with low shrinkage and excellent adhesion. Its high thiol functionality supports efficient thiol-ene click reactions, making it valuable in advanced optical materials, 3D printing resins, and protective films. Additionally, it acts as a chain transfer agent in polymer synthesis to control molecular weight and improve material flexibility.