Α-甲基乙酰丙酸

Mass

MS-IW-4102          
2-methyl-4-oxovaleric acid
C6H10O3             (Mass of molecular ion:    130)

   Source Temperature: 220 °C
   Sample Temperature: 150 °C
   Reservoir, 75 eV

      15.0       6.3
      18.0       1.2
      26.0       1.0
      27.0       8.2
      28.0       2.6
      29.0       2.0
      31.0       1.8
      39.0       7.8
      40.0       1.7
      41.0      17.5
      42.0      24.8
      43.0     100.0
      44.0       5.7
      45.0      22.4
      55.0       4.2
      58.0      14.5
      59.0       1.8
      61.0      33.5
      67.0       1.5
      69.0       9.6
      70.0      32.2
      71.0       5.4
      73.0      14.5
      84.0       2.1
      85.0       2.5
      87.0      11.3
      88.0       1.6
     112.0      15.7
     113.0      11.0
     115.0       4.6
     130.0       3.5

Assign. Shift(ppm) A 10.8 B 2.96 C *1 2.92 D *1 2.533 E 2.178 F 1.220

     Hz     ppm     Int.

   1192.60   2.985     46
   1184.54   2.964     87
   1180.51   2.954    154
   1176.84   2.945    199
   1170.80   2.930     57
   1163.29   2.911    147
   1155.05   2.891     76
   1026.83   2.570     34
   1021.70   2.557     67
   1017.86   2.547    156
   1005.22   2.516    148
   1001.19   2.506     44
    870.77   2.179   1000
    864.36   2.163     44
    491.44   1.230    571
    487.96   1.221    180
    484.29   1.212    545
    479.16   1.199     41