Itaconic acid

Mass

MS-NW-2635          
methylenesuccinic acid
C5H6O4              (Mass of molecular ion:    130)

   Source Temperature: 180 °C
   Sample Temperature: 120 °C
   Direct, 75 eV

      14.0       1.9
      15.0       3.7
      17.0       2.6
      18.0      12.7
      25.0       1.3
      26.0       3.8
      27.0       9.1
      28.0       8.3
      29.0      15.4
      30.0       1.4
      31.0       6.9
      34.0       1.2
      36.0       2.1
      37.0       6.6
      38.0      13.5
      39.0     100.0
      40.0      82.6
      41.0      91.1
      42.0      35.4
      43.0      16.5
      44.0       5.8
      45.0      48.9
      46.0       2.4
      47.0       1.1
      53.0       4.0
      55.0       4.1
      56.0       3.2
      57.0      17.0
      58.0      42.5
      59.0       1.5
      60.0       5.1
      66.0       1.2
      67.0       5.5
      68.0      50.4
      69.0      12.8
      71.0       2.6
      73.0       2.4
      84.0      18.8
      85.0      24.5
      86.0      58.9
      87.0       2.8
     112.0      36.2
     113.0       6.4
     130.0       5.6

Assign. Shift(ppm) A 6.36 B 5.88 D 3.42 THE SOLVENT SIGNAL REMOVED.

     Hz     ppm     Int.

    570.00   6.365    573
    527.38   5.889    468
    526.63   5.881    425
    306.38   3.421   1000
    305.56   3.412    916