Diisononyl Phthalate (DINP) by Chemceed is a general use high molecular weight PVC plasticizer. It is a preferred replacement for DOP plasticizer. Diisononyl Phthalate (DINP) is highly compatible and shows good permanence. Diisononyl Phthalate (DINP) is used for a wide variety of flexible PVC applications including plastisols, extruded and molded parts.