[5,5'-Biisobenzofuran]-1,1'(3H,3'H)-dione

Mass

MS-NW-9851          
5,5'-biisobenzofuran-1,1'(3H,3'H)-dione
C16H10O4            (Mass of molecular ion:    266)

   Source Temperature: 180 °C
   Sample Temperature: 200 °C
   Direct, 75 eV

      51.0       1.1
      63.0       2.2
      74.0       1.3
      75.0       3.0
      75.5       1.6
      76.0       5.4
      77.0       1.0
      82.0       1.0
      82.5       1.0
      89.5       1.5
      90.0       2.9
     103.5       1.5
     104.0       9.7
     104.5       1.5
     118.0       2.6
     139.0       1.0
     150.0       3.9
     151.0       6.0
     152.0       8.2
     153.0       3.5
     163.0       2.1
     164.0       2.1
     165.0       9.8
     166.0       1.5
     179.0       4.4
     180.0       2.0
     181.0       1.8
     209.0       5.6
     237.0     100.0
     238.0      16.8
     239.0       1.9
     265.0       7.1
     266.0      73.3
     267.0      12.9
     268.0       1.6