2,2-dibromo-3,4-bis(diphenylmethylene)cyclobutanone

Mass

MS-IW-8586          
2,2-dibromo-3,4-bis(diphenylmethylene)cyclobutanone
C30H20Br2O          (Mass of molecular ion:    554)

   Source Temperature: 190 °C
   Sample Temperature: 230 °C
   Direct, 75 eV

      18.0       2.3
      28.0       2.8
      39.0       1.0
      51.0       1.9
      63.0       1.2
      77.0       3.3
      79.0       6.4
      80.0      17.7
      81.0       6.4
      82.0      17.1
      89.0       1.0
      91.0       1.9
     105.0       6.5
     113.0       1.0
     115.0       1.4
     126.0       1.0
     131.5       1.6
     137.0       1.0
     138.0       1.2
     139.0       1.6
     143.5       4.0
     144.0       2.3
     144.5      10.1
     145.0       7.6
     145.5       1.5
     150.0       2.2
     151.0       1.9
     152.0       1.9
     155.5       1.3
     156.5       1.9
     158.0       1.2
     159.0       5.8
     160.0       2.2
     162.0       2.8
     163.0       5.6
     163.5       1.4
     164.0       2.2
     165.0      11.3
     166.0       2.7
     167.0       6.4
     167.5       1.4
     168.0       1.7
     168.5       4.8
     169.0       2.8
     169.5       3.5
     170.0       2.3
     174.0       2.1
     175.0       7.6
     175.5       4.4
     176.0       7.6
     176.5       2.7
     177.0       1.9
     178.0       5.4
     179.0       1.4
     180.5       3.9
     181.0       2.4
     181.5       7.4
     182.0       4.8
     182.5       2.8
     183.0       3.1
     183.5       1.7
     184.0       2.1
     187.0       2.4
     188.0       3.4
     188.5       1.6
     189.0      15.3
     190.0       5.5
     191.0       2.7
     197.0       1.2
     197.5       1.6
     198.0       3.9
     198.5       1.1
     200.0       1.6
     201.0       1.0
     202.0       2.7
     203.0       1.0
     213.0       2.0
     215.0       2.3
     237.0       1.3
     239.0       1.2
     250.0       1.3
     252.0       1.7
     261.0       1.5
     262.0       1.0
     263.0       3.2
     264.0       1.2
     265.0       3.6
     266.0       1.0
     269.0       3.1
     271.0       3.1
     274.0       1.5
     276.0       6.9
     277.0       2.7
     278.0       2.4
     279.0       2.1
     285.0       1.2
     287.0       8.1
     289.0      50.9
     290.0      20.4
     291.0      50.7
     292.0      13.7
     293.0       3.3
     300.0       1.3
     302.0       2.1
     303.0       1.6
     305.0       1.0
     313.0       1.4
     317.0       6.7
     318.0       7.0
     319.0       4.5
     320.0       2.6
     321.0       1.8
     324.0       1.1
     326.0       2.4
     327.0       1.2
     337.0       2.0
     339.0       4.6
     340.0       1.8
     341.0       1.4
     342.0       1.0
     350.0       3.4
     351.0       3.5
     352.0       5.4
     353.0       3.1
     354.0       1.7
     355.0       3.5
     356.0       4.7
     361.0       2.1
     363.0       7.7
     364.0       4.2
     365.0      10.6
     366.0       6.6
     367.0      91.0
     368.0     100.0
     369.0      29.7
     370.0       6.3
     371.0       3.1
     376.0       2.3
     377.0       3.1
     378.0       4.0
     379.0       3.1
     380.0       1.4
     381.0       1.6
     383.0       1.8
     392.0       1.0
     393.0       4.2
     394.0       4.2
     395.0      20.5
     396.0      17.0
     397.0       8.6
     398.0       4.6
     399.0       1.5
     407.0       1.2
     446.0       1.8
     447.0       4.4
     448.0       3.0
     449.0       4.5
     450.0       1.3
     474.0       1.7
     475.0      16.3
     476.0       7.2
     477.0      16.8
     478.0       5.5
     479.0       1.2
     556.0       1.5