Methyl 4-methoxyacetoacetate

Mass

MS-IW-3488          
methyl 4-methoxy-3-oxobutyrate
C6H10O4             (Mass of molecular ion:    146)

   Source Temperature: 210 °C
   Sample Temperature: 160 °C
   Reservoir, 75 eV

      14.0       1.4
      15.0      14.8
      26.0       1.1
      27.0       4.1
      28.0       3.1
      29.0      17.1
      30.0       1.2
      31.0       6.7
      32.0       3.0
      33.0       1.4
      39.0       1.0
      41.0       2.0
      42.0      14.0
      43.0       9.3
      44.0       3.3
      45.0     100.0
      46.0       4.2
      55.0       2.7
      57.0       9.5
      58.0       4.1
      59.0      28.2
      60.0       1.0
      69.0      17.9
      72.0       3.2
      74.0       1.4
      75.0       1.0
      84.0       3.6
      87.0       1.4
      88.0       8.9
     101.0      38.0
     102.0       1.7
     103.0       5.6
     114.0      10.0
     115.0      19.2
     116.0       4.8
     118.0       9.0
     146.0      10.6

Parameter ppm Hz D(A) 4.108 D(B) 3.741 D(C) 3.537 D(D) 3.427

     Hz     ppm     Int.

   1232.40   4.108    667
   1122.30   3.741   1000
   1061.10   3.537    667
   1028.10   3.427   1000