6,7-二甲基-1H-蝶啶-4-酮(14684-54-9)质谱(MS)

Mass

MS-IW-6903          
6,7-dimethyl-4(1H)-pteridinone
C8H8N4O             (Mass of molecular ion:    176)

   Source Temperature: 180 °C
   Sample Temperature: 250 °C
   Direct, 75 eV

      15.0       1.1
      18.0       3.3
      26.0       2.5
      27.0       7.5
      28.0      11.3
      39.0       2.1
      40.0       1.4
      41.0       2.9
      42.0      45.7
      43.0       2.1
      51.0       2.1
      52.0       4.3
      53.0       6.0
      54.0       1.7
      64.0       1.0
      65.0       1.0
      66.0       2.7
      67.0      22.0
      68.0       2.0
      69.0       4.8
      78.0       1.0
      79.0       3.6
      80.0       7.1
      94.0       2.1
     106.0       2.2
     107.0       6.2
     108.0       6.4
     120.0       1.0
     135.0     100.0
     136.0       7.7
     148.0       1.7
     176.0      80.9
     177.0       9.3