Mass

MS-IW-6866          
5,8-dihydro-4,6,7(1H)-pteridinetrione
C6H4N4O3            (Mass of molecular ion:    180)

   Source Temperature: 220 °C
   Sample Temperature: 290 °C
   Direct, 75 eV

      17.0       1.5
      18.0       7.4
      26.0       4.4
      27.0      31.4
      28.0      79.9
      29.0       2.9
      38.0       3.0
      39.0       2.7
      40.0       1.0
      41.0       2.3
      42.0       7.1
      43.0       6.5
      44.0      12.5
      45.0       5.0
      52.0       5.1
      53.0      11.0
      54.0      17.9
      55.0       3.5
      64.0       1.3
      65.0       1.1
      66.0       2.7
      67.0       2.1
      68.0       1.9
      69.0      32.7
      70.0       5.1
      71.0       1.8
      76.0       2.5
      80.0       1.4
      81.0       6.2
      82.0       1.8
      96.0       7.8
      97.0      21.6
      98.0       1.0
     109.0       1.2
     124.0       6.0
     125.0       1.8
     152.0     100.0
     153.0       7.0
     180.0      42.7
     181.0       4.6