Used as a plasticizer in polymers to improve flexibility and workability, especially in cellulose-based plastics and synthetic rubber. Acts as a solvent and catalyst in organic synthesis, including pharmaceutical manufacturing. Employed as a flame retardant in resins and coatings due to its ability to suppress combustion. Also serves as an extractant in nuclear fuel processing for separating uranium and plutonium from spent fuel. Used in hydraulic fluids and lubricant formulations for its stability and low volatility.