2-Butyloctanoic acid is primarily used in the production of lubricants and greases due to its excellent thermal stability and low volatility. It serves as a key ingredient in synthetic lubricants, enhancing their performance in high-temperature environments. Additionally, it is utilized as an intermediate in the synthesis of plasticizers, which are essential for improving the flexibility and durability of plastics. In the cosmetics industry, it is incorporated into formulations as an emollient, providing smoothness and moisture retention to skin care products. Its unique properties also make it suitable for use in coatings and adhesives, where it contributes to improved adhesion and resistance to environmental factors.