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        sell 3,3',4,4'-benzophenonetetracarboxylic dianhydride; BTDA

        BTDA is important monomer of polyimide, and used for production of polyimide material. The material has high temperature resistance, low temperature resistance, corrosion resistance, radiation resistance, insulation, shock resistance, excellent performance. Can be made into structure parts, laminates, films, adhesives, coatings, insulation materials and reinforcing material, etc., can be widely used in the field of aerospace, electrical / electronics, shipbuilding, automobile, precision machinery.

        3,3',4,4'-benzophenonetetracarboxylic dianhydride

        SynonymsBenzophenone-3,3',4,4'-tetracarboxylic dianhydride;

        4,4'-Carbonyldiphthalic anhydride; BTDA

        Molecular FormulaC17H6O7

        Molecular Weight322.23

        CAS2421-28-5

        EINECS219-348-1

        Melting point219-226 oC

        Sublimation220-230 oC

        Flash point324 oC

        Water solubilityREACTS

        Purity:99%

        BTDA is important monomer of polyimide, and used for production of polyimide material. The material has high temperature resistance, low temperature resistance, corrosion resistance, radiation resistance, insulation, shock resistance, excellent performance. Can be made into structure parts, laminates, films, adhesives, coatings, insulation materials and reinforcing material, etc., can be widely used in the field of aerospace, electrical / electronics, shipbuilding, automobile, precision machinery.


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