High boiling aromatic solvent oil series products have the characteristics of suitable distillation range and volatility, strong solubility and low odor. They have been widely used in paint, ink, pesticide, hydrogen peroxide and other industries, especially baking coatings, which play a high solubility in the later stage of film formation to make the film smooth and less orange peel. In addition, the use of benzene in paint and pesticide can avoid the harm of benzene to the environment Aromatic plasticizer has good compatibility with PVC plastics. It is an ideal substitute for dibutyl ester and dioctyl ester. It is used to produce PVC plastic products[