1,3-Diphenyl-1,3-dihydroimidazo[4,5-b]quinoxalin-2-one(15051-50-0) MS

Mass

MS-KW-0868          
1,3-diphenyl-1,3-dihydroimidazo(4,5-b)quinoxalin-2-one
C21H14N4O           (Mass of molecular ion:    338)

   Source Temperature: 170 °C
   Sample Temperature: 180 °C
   Direct, 75 eV

      28.0       1.5
      39.0       2.6
      50.0       2.3
      51.0      13.6
      52.0       2.0
      63.0       2.7
      64.0       5.2
      65.0       2.2
      75.0       1.8
      76.0       4.8
      77.0      30.0
      78.0       4.2
      90.0       5.4
      91.0      13.0
      92.0       1.1
     102.0       3.6
     103.0       5.2
     116.0       1.7
     129.0       2.8
     143.0       1.1
     154.5       1.5
     155.0       6.5
     166.0       1.8
     169.0       5.0
     191.0       1.9
     192.0       4.1
     193.0       2.1
     206.0       1.4
     207.0       1.6
     217.0       1.4
     218.0      12.3
     219.0      39.8
     220.0       6.6
     235.0       3.5
     261.0       1.9
     296.0       1.3
     309.0       4.4
     310.0       1.2
     337.0       8.8
     338.0     100.0
     339.0      24.3
     340.0       3.1