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          Tetrafluoroterephthalonitrile
          Product name: Tetrafluoroterephthalonitrile
          CAS No.: 1835-49-0
          EINECS No.: 217-397-3
          Molecular formula : C8F4N2
          Molecular weight: 200.0926
          Molecular Structure:
          Density: 1.54g/cm3
          Melting point: 197-199℃
          Boiling point: 243.3°C at 760 mmHg
          Flash point: 100.9°C
          Vapor pressure: 0.0324mmHg at 25°C
          Physical and chemical properties: White or off-white crystalline solid
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