乙酰丙酮酸乙酯

Mass

MS-IW-1280          
ethyl 2,4-dioxovalerate
C7H10O4             (Mass of molecular ion:    158)

   Source Temperature: 240 °C
   Sample Temperature: 160 °C
   Reservoir, 75 eV

      15.0       1.8
      27.0       4.9
      28.0       2.5
      29.0      10.1
      31.0       6.5
      39.0       1.8
      41.0       2.8
      42.0       3.7
      43.0      52.9
      44.0       3.6
      45.0       4.1
      46.0       1.2
      58.0       5.5
      69.0       6.8
      84.0       2.9
      85.0     100.0
      86.0       5.0
     158.0       2.7

Assign. Shift(ppm) A 6.390 B 4.354 C 2.276 D 1.381

     Hz     ppm     Int.

   2553.71   6.390    502
   1750.85   4.381    124
   1747.80   4.374     24
   1743.77   4.364    344
   1740.72   4.356     27
   1736.57   4.346    338
   1729.49   4.328    126
    909.55   2.276   1000
    906.25   2.268     43
    561.40   1.405     43
    559.20   1.400    357
    555.91   1.391     37
    554.20   1.387     64
    552.00   1.382    623
    548.83   1.374     40
    547.12   1.369     34
    544.80   1.364    335
    541.75   1.356     21