This product is used as extractant of metal complex, plasticizer of nitrocellulose, cellulose acetate, chlorinated rubber and polyvinyl chloride, solvent of coating, ink and adhesive. It is used as the main plasticizer of nitrocellulose, cellulose acetate, chlorinated rubber and polyvinyl chloride. It is also commonly used as solvent, defoamer and antistatic agent of coatings, adhesives and inks, and extractant of rare earth elements.