2,3,3,4-biphenyl tetracarboxylic dianhydride(36978-41-3) IR2

Mass

MS-KW-0012          
4,5'-biisobenzofuran-1,1',3,3'-tetrone
C16H6O6             (Mass of molecular ion:    294)

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

      17.0       4.6
      18.0      25.0
      28.0      19.6
      39.0       1.2
      44.0       8.5
      50.0       3.4
      51.0       1.0
      61.0       2.5
      61.5       1.7
      62.0       8.1
      63.0       2.5
      69.0       1.5
      73.0       1.1
      74.0      11.4
      74.5       1.0
      75.0      22.7
      75.5       2.9
      76.0       4.1
      83.0       2.3
      85.0       1.1
      86.0       2.4
      87.0       3.5
      88.0       1.0
      89.0       9.5
      89.5       1.4
      97.0       1.8
      98.0       5.4
      99.0       2.9
     100.0       4.0
     103.0       2.2
     110.0       1.4
     111.0       3.6
     122.0       1.6
     123.0       1.7
     124.0       1.9
     125.0       2.9
     137.0       2.6
     138.0       4.5
     149.0       3.1
     150.0      37.8
     151.0       5.2
     166.0       1.1
     178.0      28.7
     179.0       4.4
     194.0       2.2
     221.0       1.3
     222.0      13.8
     223.0       2.2
     250.0     100.0
     251.0      16.9
     252.0       2.3
     294.0      43.3
     295.0       8.1
     296.0       1.1