2-Butene oxide

Mass

MS-NW-2959          
2,3-epoxybutane
C4H8O               (Mass of molecular ion:     72)

   Source Temperature: 270 °C
   Sample Temperature: 180 °C
   Reservoir, 75 eV

      14.0       1.5
      15.0       7.3
      18.0       3.1
      19.0       3.4
      26.0       9.8
      27.0      25.7
      28.0      17.6
      29.0      18.9
      39.0       3.3
      41.0       7.1
      42.0       2.0
      43.0     100.0
      44.0      73.5
      45.0      46.2
      46.0       1.2
      53.0       1.0
      57.0       2.2
      72.0       5.6