3,3',4,4'-BIPHENYL TETRACARBOXYLIC ACID(36978-37-7) IR2

Mass

MS-IW-9619          
tetramethyl 3,3',4,4'-biphenyltetracarboxylate
C20H18O8            (Mass of molecular ion:    386)

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

      15.0       4.7
      18.0       1.5
      28.0       3.3
      29.0       1.7
      31.0       1.0
      44.0       1.5
      45.0       1.2
      59.0       4.7
      74.0       1.3
      75.0       2.1
     100.0       1.2
     101.0       1.1
     116.0       1.5
     118.5       3.8
     126.0       1.1
     132.5       4.6
     133.0       3.2
     138.0       1.7
     139.0       4.3
     140.0       1.0
     147.0       2.4
     148.0       2.3
     149.0       1.0
     150.0       4.7
     151.0       6.8
     152.0       7.7
     153.0       2.0
     155.0       1.0
     162.0      39.4
     165.0       3.1
     166.0       4.9
     167.0       1.7
     178.0       1.8
     179.0       4.2
     180.0       1.9
     194.0       2.1
     195.0       1.6
     209.0       2.5
     210.0       5.9
     211.0       1.0
     222.0       1.5
     223.0       1.4
     225.0       1.1
     237.0       8.2
     238.0       8.4
     239.0       1.6
     253.0       8.9
     254.0       1.7
     281.0       3.1
     284.0       2.3
     296.0       2.6
     297.0       3.1
     309.0       9.7
     310.0       2.0
     311.0       1.4
     325.0       1.3
     327.0       7.2
     328.0       1.8
     355.0     100.0
     356.0      21.3
     357.0       3.7
     386.0      28.3
     387.0       6.1
     388.0       1.1