Monoethyl fumarate

Mass

MS-IW-0566          
ethyl hydrogen fumarate
C6H8O4              (Mass of molecular ion:    144)

   Source Temperature: 260 °C
   Sample Temperature: 130 °C
   Reservoir, 75 eV

      15.0       1.2
      26.0       5.7
      27.0      16.0
      28.0       4.6
      29.0      12.7
      31.0       1.0
      43.0       3.8
      44.0       1.2
      45.0      11.7
      53.0       7.6
      54.0       5.8
      55.0       6.5
      71.0       5.5
      72.0       3.8
      81.0      12.3
      82.0      14.0
      98.0       5.6
      99.0     100.0
     100.0      13.2
     101.0       1.1
     117.0       9.0
     126.0       8.9
     127.0       2.6

Assign. Shift(ppm) A 11.1 B 6.947 C 6.867 D 4.289 E 1.338

     Hz     ppm     Int.

   2787.48   6.975    264
   2771.76   6.936    615
   2749.18   6.879    614
   2733.46   6.840    272
   1725.16   4.317    142
   1717.99   4.299    442
   1710.82   4.281    453
   1703.64   4.263    153
    541.99   1.357    498
    534.82   1.339   1000
    527.65   1.321    490