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Mass

MS-NW-1510          
2-methyl-1,4-naphthoquinone
C11H8O2             (Mass of molecular ion:    172)

   Source Temperature: 260 °C
   Sample Temperature: 170 °C
   Reservoir, 75 eV

      18.0       1.2
      27.0       1.5
      28.0       2.9
      37.0       2.3
      38.0       6.5
      39.0      17.6
      40.0       3.4
      49.0       1.4
      50.0      30.4
      51.0       9.0
      52.0       3.0
      53.0       2.6
      57.0       2.3
      57.5       2.9
      58.0       4.5
      61.0       1.7
      62.0       3.8
      63.0       7.3
      64.0       1.3
      65.0       2.9
      66.0       3.6
      67.0       3.4
      71.0       1.4
      72.0       1.4
      73.0       1.8
      74.0      12.0
      75.0      14.2
      76.0      57.7
      77.0      10.2
      86.0       1.8
      87.0       2.1
      88.0       1.7
      89.0       6.5
      90.0       1.3
     101.0       3.0
     102.0       1.1
     104.0      65.6
     105.0      18.1
     106.0       1.3
     113.0       1.4
     114.0       2.2
     115.0      50.1
     116.0      52.6
     117.0       5.2
     129.0       3.7
     132.0       1.5
     143.0       3.1
     144.0      40.1
     145.0       4.6
     157.0       1.3
     171.0       2.5
     172.0     100.0
     173.0      11.7
     174.0       1.6

Assign. Shift(ppm) A 2.194 B 6.831 C 7.717 D 8.051

     Hz     ppm     Int.

    728.25   8.132    105
    725.00   8.096    213
    723.00   8.073    119
    721.94   8.061    184
    719.06   8.029    255
    716.06   7.996    192
    711.94   7.950     49
    698.63   7.801     89
    694.69   7.757    388
    691.31   7.719    290
    688.94   7.693    265
    685.56   7.655    233
    681.50   7.610     40
    613.81   6.854    100
    612.31   6.837    253
    610.75   6.820    255
    609.31   6.804    105
    196.94   2.199    997
    195.44   2.183   1000