is produced by esterifying Isononanol and Phthalic Anhydride.DINP's plasticizingcharacteristic is similar to that of DEHP in many ways.However,DINP's low volatility and low plasticizing efficiency are advantageous in some applications.DINP is a plasticizer for general purpose.To compare with DEHP, its plasticizing efficiency, migration and water extraction rate are lower and its gelation temperature and electric resistivity are mildly higher.DINP's low volatility not only prolongs the service life of product but also reduces the evaporation during process.DINP can be used to substitute DEHP,of which the plasticizing efficiency and specific gravity is higher,to save a considerable cost per volume.