2-Butenoic acid, 2-cyano-, ethyl ester

Mass

MS-IW-2843          
ethyl 2-cyanocrotonate
C7H9NO2             (Mass of molecular ion:    139)

   Source Temperature: 220 °C
   Sample Temperature: 160 °C
   Reservoir, 75 eV

      15.0       1.9
      26.0       1.6
      27.0       8.8
      28.0       4.4
      29.0      28.0
      37.0       2.7
      38.0       4.1
      39.0      15.9
      40.0       4.2
      41.0       6.0
      42.0       1.6
      43.0       4.1
      45.0       8.7
      52.0       9.0
      53.0       1.2
      54.0       1.0
      55.0       2.1
      64.0       3.8
      65.0       2.8
      66.0      25.3
      67.0      17.8
      68.0       2.8
      69.0       2.3
      73.0       1.4
      80.0       1.2
      82.0       1.3
      83.0      13.2
      93.0       4.8
      94.0     100.0
      95.0       7.0
      96.0       1.5
     111.0       6.9
     112.0      27.9
     113.0       1.9
     124.0       8.2
     138.0       1.9
     139.0      14.6
     140.0       1.3