Used primarily as a solvent in coatings, inks, and cleaning agents due to its ability to mix with both water and organic solvents. It helps improve the flow and leveling of paints and varnishes, making it valuable in industrial and automotive finishes. Also employed in the formulation of resins, dyes, and wood stains for enhanced solubility and performance. Historically used in semiconductor manufacturing and as a coupling agent in chemical processes, though its use has declined in some areas due to toxicity concerns.