4-甲氧基-3-丁烯-2-酮

Mass

MS-NW-5462          
4-methoxy-3-buten-2-one
C5H8O2              (Mass of molecular ion:    100)

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

      14.0       2.4
      15.0      11.0
      26.0       3.5
      27.0      11.1
      28.0       2.6
      29.0       8.7
      31.0       8.3
      38.0       1.3
      39.0       3.2
      41.0       1.8
      42.0      10.3
      43.0      36.5
      44.0       1.1
      47.0       1.5
      53.0       4.5
      54.0       1.2
      55.0       1.5
      57.0       2.4
      58.0       1.4
      59.0       5.0
      69.0       2.6
      71.0       6.0
      75.0       6.3
      85.0     100.0
      86.0       4.8
     100.0      13.8
     101.0       2.4
     117.0       1.2

Assign. Shift(ppm) A 7.574 B 5.590 C 3.713 D 2.192 J(A,B)=12.9HZ. J(A,C)=0.4HZ.

     Hz     ppm     Int.

    685.56   7.655     91
    685.19   7.651     92
    672.69   7.512    104
    672.31   7.507    105
    506.75   5.659    132
    493.94   5.516    115
    332.75   3.716    729
    196.38   2.193   1000
    195.31   2.181    151