Diethyl fumarate

Mass

MS-IW-8024          
diethyl fumarate
C8H12O4             (Mass of molecular ion:    172)

   Source Temperature: 220 °C
   Sample Temperature: 150 °C
   Reservoir, 75 eV

      15.0       1.2
      18.0       2.0
      26.0       9.2
      27.0      14.2
      28.0       8.0
      29.0      21.6
      31.0       2.3
      43.0       3.9
      44.0       1.5
      45.0      10.1
      53.0       6.9
      54.0       9.8
      55.0      17.7
      56.0       1.1
      71.0       8.5
      72.0       2.5
      81.0       7.0
      82.0      11.1
      98.0       3.7
      99.0      62.9
     100.0      11.8
     117.0       5.7
     125.0       3.0
     126.0      30.3
     127.0     100.0
     128.0      10.2
     129.0       1.1
     143.0       4.1
     145.0       3.5

Parameter ppm Hz D(A) 1.324 D(B) 4.262 J(A,B) 7.12 D(C) 6.842

     Hz     ppm     Int.

   2052.58   6.842    665
   1289.30   4.298    161
   1282.23   4.274    494
   1275.10   4.250    502
   1268.03   4.227    169
    404.32   1.348    501
    397.19   1.324   1000
    390.12   1.300    489