2-Ethylhexyl hydrogen adipate is primarily used as a plasticizer in the production of polymers and resins. It enhances the flexibility, durability, and workability of materials like PVC, making them suitable for applications in wire and cable insulation, automotive parts, and synthetic leather. Additionally, it serves as a lubricant in various industrial processes, improving the efficiency of machinery and reducing friction. Its compatibility with other chemicals also makes it a valuable component in the formulation of adhesives, coatings, and inks, providing improved performance and stability.