Pyrazinecarboxamide, 1-oxide (8CI,9CI)

Mass

MS-IW-9609          
2-pyrazinecarboxamide 1-oxide
C5H5N3O2            (Mass of molecular ion:    139)

   Source Temperature: 150 °C
   Sample Temperature: 130 °C
   Direct, 75 eV

      17.0       2.1
      18.0      10.3
      25.0       1.7
      26.0      14.2
      27.0       4.7
      28.0      24.1
      29.0       2.2
      30.0       7.9
      37.0       2.1
      38.0       5.2
      39.0       5.6
      40.0      10.0
      41.0       4.8
      42.0       2.1
      43.0       5.5
      44.0      12.3
      50.0       1.3
      51.0      17.2
      52.0      41.0
      53.0      14.7
      54.0       1.7
      64.0       2.0
      65.0       1.7
      66.0       7.4
      67.0       2.0
      68.0       2.1
      69.0       1.2
      77.0       2.4
      78.0      12.4
      79.0      59.2
      80.0       9.9
      96.0      44.8
      97.0       2.5
     105.0      11.6
     111.0       1.5
     121.0      32.6
     122.0       3.3
     123.0       3.6
     139.0     100.0
     140.0       7.2