3,4-二甲氧基苯乙酮

Mass

MS-NW-6538          
3',4'-dimethoxyacetophenone
C10H12O3            (Mass of molecular ion:    180)

   Source Temperature: 250 °C
   Sample Temperature: 190 °C
   Reservoir, 75 eV

      15.0       2.8
      18.0       1.5
      28.0       1.5
      39.0       2.1
      41.0       1.2
      43.0      13.3
      50.0       3.1
      51.0       6.7
      52.0       1.5
      53.0       2.0
      62.0       1.5
      63.0       3.5
      64.0       1.4
      65.0       2.2
      66.0       2.2
      74.0       1.0
      75.0       1.2
      76.0       2.5
      77.0      11.7
      78.0       2.0
      79.0       8.4
      91.0       2.2
      92.0       4.1
      94.0       5.0
      95.0       1.0
     105.0       1.5
     107.0       3.9
     109.0       3.5
     119.0       2.5
     120.0       1.5
     121.0       1.7
     122.0       6.6
     123.0       1.1
     137.0      10.2
     138.0       1.0
     165.0     100.0
     166.0      10.9
     167.0       1.1
     180.0      54.0
     181.0       6.3

Assign. Shift(ppm) A 7.58 B 7.53 C 6.89 D *1 3.949 E *1 3.938 F 2.567 J(A,C)=8.6HZ. J(A,B)=2.0HZ.

     Hz     ppm     Int.

    684.13   7.639     43
    682.13   7.617     68
    674.50   7.532    265
    673.50   7.521     48
    621.00   6.934     55
    620.19   6.925     41
    613.19   6.847     33
    612.50   6.839     42
    353.69   3.950    659
    352.69   3.939    712
    229.88   2.567   1000