Dimethyl itaconate

Mass

MS-NW-0575          
dimethyl methylenesuccinate
C7H10O4             (Mass of molecular ion:    158)

   Source Temperature: 280 °C
   Sample Temperature: 170 °C
   Reservoir, 75 eV

      14.0       1.0
      15.0      61.1
      18.0       2.2
      26.0       1.5
      27.0       7.3
      28.0       3.3
      29.0      13.7
      30.0       1.1
      31.0       3.0
      37.0       1.8
      38.0       5.2
      39.0      32.9
      40.0      23.4
      41.0      28.7
      42.0       3.1
      43.0       3.5
      44.0       1.1
      45.0       7.7
      53.0       4.6
      54.0       4.1
      55.0      24.2
      56.0       2.0
      57.0       1.1
      59.0     100.0
      60.0       2.4
      67.0       9.9
      68.0      17.8
      69.0      38.5
      70.0       2.1
      71.0      17.1
      72.0       2.4
      74.0       1.0
      81.0       1.3
      82.0       4.4
      83.0       9.2
      84.0       1.0
      85.0       1.7
      87.0       1.2
      95.0       3.4
      98.0       6.8
      99.0      45.8
     100.0       3.1
     113.0      18.3
     114.0       1.4
     115.0       1.4
     126.0      44.2
     127.0      63.5
     128.0       5.2
     130.0       7.7
     143.0       5.1
     158.0       5.5