2, 6-naphthalene dicarboxylic acid CAS 1141-38-4

White needle crystals. Melting point 310-313 ° C (decomposition). Insoluble in boiling benzene, toluene and acetic acid. This product is used to manufacture polyester fibers and F-class insulation materials with high strength and excellent dyeing properties. It is an important monomer for high-performance PEN, PBN, liquid crystal polymer (LCP) and polyurethane resins, and is also an important monomer for pharmaceuticals and fine chemicals. raw material.