1-Oxylato-3-carboxypyrazine-1-ium

Mass

MS-IW-9608          
2-pyrazinecarboxylic acid 4-oxide
C5H4N2O3            (Mass of molecular ion:    140)

   Source Temperature: 160 °C
   Sample Temperature: 140 °C
   Direct, 75 eV

      14.0       1.3
      16.0       1.1
      17.0       1.2
      18.0       6.1
      25.0       3.4
      26.0      23.8
      27.0       7.3
      28.0      34.6
      29.0       5.5
      30.0      26.0
      37.0       4.6
      38.0      11.2
      39.0      30.8
      39.5       1.2
      40.0      28.6
      41.0      25.4
      42.0      18.1
      43.0       2.8
      44.0      40.7
      45.0      12.8
      50.0       1.7
      51.0      13.3
      52.0      80.9
      53.0      25.6
      54.0       1.9
      55.0       1.7
      61.5       1.3
      63.0       1.0
      64.0       3.5
      65.0       1.9
      66.0       2.0
      67.0       5.7
      68.0       6.5
      69.0       3.7
      70.0       3.9
      77.0       1.3
      78.0       2.5
      79.0       6.4
      80.0      16.2
      95.0      15.2
      96.0      97.2
      97.0       5.4
     106.0       1.6
     123.0       4.4
     124.0       4.8
     140.0     100.0
     141.0       8.0