CAS Registry Number:121-91-5
Melting point:341-343 ºC
Water solubility:0.01 g/100 mL (25 ºC)
Isophthalic acid is used in the production of alkyd resins, unsaturated polyester resins and other high polymers and various ester plasticizers. It is also an important raw material for polyester polyols in packaging polyurethane adhesives and printing ink binders.