Diethyl acetylenedicarboxylate

Mass

MS-NW-1162          
diethyl acetylenedicarboxylate
C8H10O4             (Mass of molecular ion:    170)

   Source Temperature: 240 °C
   Sample Temperature: 170 °C
   Reservoir, 75 eV

      15.0       5.3
      18.0       2.3
      25.0       1.2
      26.0       4.7
      27.0      28.5
      28.0       6.9
      29.0      55.5
      30.0       2.0
      31.0       3.2
      39.0       1.9
      41.0       1.2
      42.0       2.5
      43.0      10.7
      44.0       1.4
      45.0      19.7
      51.0       1.1
      52.0      11.8
      53.0      93.3
      54.0       5.3
      55.0       2.1
      66.0       1.4
      67.0       1.3
      68.0       3.4
      69.0       6.8
      70.0       4.1
      79.0       1.4
      80.0      18.8
      81.0       5.5
      82.0       4.6
      84.0       1.0
      96.0       2.2
      97.0      11.6
      98.0      47.2
      99.0       3.9
     112.0       1.3
     113.0       5.6
     115.0       4.6
     119.0       1.4
     124.0      15.5
     125.0     100.0
     126.0      15.2
     127.0       1.9
     143.0       2.9

Assign. Shift(ppm) A 4.300 B 1.337

     Hz     ppm     Int.

    396.13   4.424    120
    388.94   4.343    425
    381.75   4.263    447
    374.69   4.184    139
    126.69   1.415    461
    123.88   1.384     28
    119.63   1.336   1000
    117.19   1.309     30
    116.63   1.303     34
    112.38   1.255    407