Used primarily as a plasticizer in polymers, especially in polyvinyl chloride (PVC) and related plastics to improve flexibility, durability, and workability. It enhances low-temperature performance and resistance to aging, making it suitable for cables, flooring, films, and flexible tubing. Also employed in lubricant formulations and as a solvent or carrier in coatings and adhesives due to its stability and low volatility. Its water-resistant properties make it useful in sealants and waterproofing compounds.