Used as a plasticizer to increase flexibility and durability in plastics, especially in polyvinyl chloride (PVC) products. Commonly found in coatings, adhesives, printing inks, and celluloid resins. Also used in cosmetics, perfumes, and personal care products to help dissolve fragrance and improve product consistency. Occasionally used in insecticides and dye carriers for textile processing. Its low volatility makes it suitable for use in cable insulation and flooring materials. However, due to potential health and environmental concerns, its use is regulated in some countries and applications.