4-Formylbenzoic acid

Mass

MS-NW-8858          
terephthalaldehydic acid
C8H6O3              (Mass of molecular ion:    150)

   Source Temperature: 190 °C
   Sample Temperature: 130 °C
   Direct, 75 eV

      27.0       1.3
      28.0       1.4
      29.0       1.5
      38.0       1.9
      39.0       4.9
      45.0       1.4
      50.0      10.1
      51.0      14.4
      52.0       2.8
      53.0       1.5
      65.0      22.1
      66.0       2.7
      73.0       1.0
      74.0       5.1
      75.0       5.6
      76.0       5.8
      77.0      14.3
      78.0       1.4
      93.0       4.2
     103.0       2.4
     104.0       2.1
     105.0      12.1
     106.0       1.2
     121.0      32.3
     122.0       3.7
     133.0       6.8
     149.0     100.0
     150.0      86.7
     151.0       8.6

Assign. Shift(ppm) A 13. B 10.130 C 8.145 D 8.039

     Hz     ppm     Int.

    907.32  10.131    831
    736.04   8.219    191
    734.08   8.197    102
    729.59   8.147    169
    727.54   8.124    945
    722.56   8.068   1000
    720.31   8.043    233
    716.11   7.996    133
    714.84   7.982    196
    714.06   7.973    241
    711.33   7.943     44
    710.35   7.932     38
    709.57   7.923     32
    709.18   7.919     30
    708.69   7.914     29