Mass

MS-IW-1845          
di(p-tolyl) 1,4-piperazinedicarboxylate
C20H22N2O4          (Mass of molecular ion:    354)

   Source Temperature: 190 °C
   Sample Temperature: 180 °C
   Direct, 75 eV

      27.0       1.6
      28.0       2.7
      29.0       1.3
      39.0       2.3
      41.0       2.7
      42.0       9.7
      43.0       1.5
      51.0       1.9
      52.0       1.2
      53.0       1.4
      55.0       5.5
      56.0       7.8
      57.0       3.3
      58.0       1.1
      63.0       1.1
      65.0       9.4
      70.0      27.3
      71.0       1.7
      77.0       8.1
      78.0       2.4
      79.0       3.6
      83.0       1.0
      84.0       1.1
      85.0       1.4
      89.0       1.1
      90.0       1.0
      91.0      46.6
      92.0       3.9
      97.0       7.5
     105.0       1.1
     107.0       5.0
     108.0       3.0
     111.0       2.2
     112.0       2.6
     113.0      16.0
     114.0       1.0
     118.0       1.0
     121.0       1.2
     133.0       2.2
     134.0       2.9
     135.0      16.6
     136.0       1.6
     139.0      29.2
     140.0       2.1
     190.0       1.5
     203.0      16.7
     204.0       4.2
     205.0       2.6
     233.0       4.1
     247.0     100.0
     248.0      15.3
     249.0       1.8
     340.0       1.6
     354.0      30.7
     355.0       7.1
     356.0       1.0