Mass

MS-IW-5305          
4-amino-5-nitro-2(1H)-pyrimidinone
C4H4N4O3            (Mass of molecular ion:    156)

   Source Temperature: 180 °C
   Sample Temperature: 240 °C
   Direct, 75 eV

      17.0       4.0
      18.0      18.5
      26.0       2.2
      27.0      16.6
      28.0      29.5
      29.0       3.0
      30.0       6.9
      38.0       2.1
      39.0       2.9
      40.0       9.1
      41.0       3.1
      42.0       7.8
      43.0      24.4
      44.0      13.6
      51.0       1.1
      52.0       5.1
      53.0       6.9
      54.0       4.0
      55.0       9.4
      56.0       2.4
      65.0       1.3
      66.0       5.7
      67.0       7.5
      68.0       6.1
      69.0      11.1
      70.0       3.8
      71.0       5.1
      81.0       5.2
      82.0       1.5
      83.0      15.0
      84.0       1.3
      95.0       1.9
      96.0       6.5
      97.0       1.4
      98.0       1.1
     108.0       2.0
     109.0      11.7
     110.0       5.9
     112.0       3.9
     126.0       4.3
     128.0       1.6
     138.0      13.5
     139.0      16.0
     140.0       2.0
     156.0     100.0
     157.0       7.3