Mesityl oxide

Mass

MS-NW-0029          
4-methyl-3-penten-2-one
C6H10O              (Mass of molecular ion:     98)

   Source Temperature: 220 °C
   Sample Temperature:  65 °C
   Reservoir, 75 eV

      15.0       4.3
      18.0       1.5
      26.0       1.5
      27.0      13.8
      28.0       2.4
      29.0      22.7
      31.0       2.5
      37.0       1.0
      38.0       2.5
      39.0      19.9
      40.0       2.2
      41.0       7.6
      42.0       2.4
      43.0      40.5
      44.0       1.0
      50.0       2.6
      51.0       3.3
      52.0       1.3
      53.0       9.1
      54.0       1.7
      55.0      85.0
      56.0       4.6
      58.0       1.5
      59.0       6.8
      79.0       1.9
      82.0       1.2
      83.0     100.0
      84.0       5.6
      98.0      53.6
      99.0       3.9

Assign. Shift(ppm) A 6.090 B 2.161 C 2.137 D 1.885

     Hz     ppm     Int.

    547.94   6.119     36
    546.94   6.107     70
    546.56   6.103     72
    545.63   6.093     94
    544.31   6.078     74
    542.94   6.063     37
    193.56   2.162   1000
    192.00   2.144    479
    190.75   2.130    478
    169.56   1.894    447
    168.25   1.879    459