Widely used as a plasticizer in the production of flexible polyvinyl chloride (PVC) and other polymers, providing improved workability, durability, and elasticity. Commonly found in industrial applications such as wire and cable coatings, flooring, and hoses due to its good resistance to heat and UV degradation. Also used in sealants, adhesives, and lubricating oil additives to enhance performance under demanding conditions. Its low volatility and water resistance make it suitable for long-term applications in outdoor and automotive products.