3,4-二甲基苯乙酮

Mass

MS-NW-5655          
3',4'-dimethylacetophenone
C10H12O             (Mass of molecular ion:    148)

   Source Temperature: 270 °C
   Sample Temperature: 190 °C
   Reservoir, 75 eV

      15.0       1.6
      18.0       1.2
      27.0       4.5
      39.0       6.1
      41.0       1.5
      43.0       8.3
      50.0       2.5
      51.0       6.9
      52.0       1.8
      53.0       2.9
      62.0       1.5
      63.0       4.1
      64.0       1.1
      65.0       3.1
      74.0       1.1
      75.0       1.0
      77.0      14.8
      78.0       4.6
      79.0      11.7
      89.0       1.5
      91.0       2.9
     102.0       1.3
     103.0       8.2
     104.0       3.3
     105.0      48.9
     106.0       5.0
     119.0       1.2
     133.0     100.0
     134.0      10.7
     148.0      38.6
     149.0       4.5
     263.0       1.5

Assign. Shift(ppm) A 7.73 B 7.69 C 7.195 D 2.554 E 2.30

     Hz     ppm     Int.

    691.81   7.725    111
    684.69   7.646     38
    682.75   7.624     34
    647.81   7.234     38
    647.13   7.226     33
    640.06   7.147     29
    639.38   7.140     26
    228.81   2.555   1000
    206.38   2.305    844