2,3-Pyridinedicarboxylic anhydride

Mass

MS-NW-7351          
2,3-pyridinedicarboxylic anhydride
C7H3NO3             (Mass of molecular ion:    149)

   Source Temperature: 170 °C
   Sample Temperature: 130 °C
   Direct, 75 eV

      25.0       1.1
      26.0       9.4
      28.0       2.2
      36.0       1.4
      37.0       5.7
      38.0       8.3
      38.5      10.1
      39.0       3.6
      44.0       1.9
      48.0       2.0
      49.0      10.9
      50.0      40.7
      51.0      12.9
      52.0       3.6
      52.5       6.1
      53.0       3.0
      74.0       1.2
      75.0       9.2
      76.0      20.6
      77.0      95.1
      78.0       7.7
      79.0       1.0
     105.0     100.0
     106.0       7.6
     123.0       3.5
     149.0      12.7
     150.0       1.2

Assign. Shift(ppm) A 9.149 B 8.532 C 7.951

     Hz     ppm     Int.

    822.69   9.186    711
    821.25   9.170    734
    817.88   9.133    794
    816.38   9.116    780
    813.94   9.089     30
    769.31   8.590    735
    767.81   8.574    696
    764.50   8.537     32
    761.50   8.503   1000
    760.00   8.486    883
    758.88   8.474     44
    717.81   8.015    946
    716.25   7.998     33
    715.13   7.985     35
    712.94   7.961    865
    710.00   7.928    703
    705.13   7.874    656