2-Methylquinoxaline

Mass

MS-NW-0151          
2-methylquinoxaline
C9H8N2              (Mass of molecular ion:    144)

   Source Temperature: 220 °C
   Sample Temperature:  75 °C
   Reservoir, 75 eV

      18.0       1.8
      26.0       1.4
      27.0       2.0
      28.0       2.5
      37.0       2.2
      38.0       3.8
      39.0       8.5
      40.0       1.1
      42.0       1.5
      50.0      21.4
      51.0       6.4
      52.0       3.1
      58.5       5.5
      61.0       1.0
      62.0       1.8
      63.0       4.1
      64.0       2.8
      72.0       4.2
      74.0       5.2
      75.0      10.2
      76.0      37.7
      77.0      20.9
      78.0       2.0
      89.0       3.8
      90.0       6.8
      91.0       1.1
     102.0       5.3
     103.0       7.6
     116.0       4.3
     117.0      80.4
     118.0       7.9
     129.0       1.1
     143.0       2.6
     144.0     100.0
     145.0      10.9

Assign. Shift(ppm) A 8.74 B 8.18 to 7.88 C 7.88 to 7.55 D 2.775

     Hz     ppm     Int.

    782.75   8.740    250
    728.13   8.131     47
    725.69   8.103     33
    723.19   8.075     87
    721.38   8.055     57
    718.94   8.028    108
    715.88   7.994     55
    713.94   7.972     97
    700.00   7.816     36
    695.94   7.771    131
    694.88   7.759    119
    693.25   7.741     81
    690.75   7.713     94
    690.06   7.706     86
    687.81   7.680     63
    685.56   7.655     99
    248.56   2.776   1000