Chemical properties: Dimethyl phthalate is a white crystalline solid at room temperature and pressure, which contains two ester groups. These ester groups have strong electrophilicity and are easily attacked by nucleophilic reagents. Therefore, dimethyl phthalate can participate in a variety of nucleophilic reactions, such as ester hydrolysis under acid catalysis, nucleophilic substitution reaction, etc. Dimethyl phthalate can undergo ester exchange polycondensation reaction, hydrogenation and hydrogenolysis reaction and hydrolysis reaction.