1,1-Cyclopropanedicarboxylic acid dimethyl ester

Mass

MS-IW-9196          
dimethyl 1,1-cyclopropanedicarboxylate
C7H10O4             (Mass of molecular ion:    158)

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

      15.0      35.2
      26.0       2.8
      27.0       8.8
      28.0       9.7
      29.0      18.8
      30.0       2.3
      31.0       3.5
      32.0       1.0
      37.0       2.1
      38.0       5.0
      39.0      26.4
      40.0      17.2
      41.0      14.6
      42.0       3.6
      43.0       3.1
      44.0       5.7
      45.0       9.4
      53.0      10.3
      54.0       2.1
      55.0       5.9
      56.0       1.5
      57.0       1.0
      58.0       1.0
      59.0      79.9
      60.0       2.0
      66.0       1.0
      67.0       4.2
      68.0      30.5
      69.0      10.8
      70.0       1.4
      71.0       4.0
      83.0       1.9
      85.0       1.3
      95.0      32.4
      96.0       2.2
      97.0       1.4
      98.0      30.6
      99.0      15.0
     100.0      22.2
     101.0       1.7
     113.0       3.2
     125.0       1.1
     126.0      57.3
     127.0     100.0
     128.0       7.1
     129.0       1.7
     157.0       6.2
     158.0       6.0

Assign. Shift(ppm) A 3.744 B 1.461

     Hz     ppm     Int.

   1496.46   3.745   1000
    584.11   1.462    837