Mainly used for cellulose acetate, synthetic resin, paint solvent, paint industry is used to prepare paint thinner, paint remover and paint raw materials, pharmaceutical industry is used as drug extraction agent, plastic industry is used as resin plasticizer, textile industry is used as fiber lubricant, chemical fiber oil dispersant. It can also be used as automobile brake fluid, pesticide dispersant, dry cleaning agent, cutting oil solvent, organic synthesis intermediate, mineral oil emulsion auxiliary solvent, analytical reagent, etc.