1,3-Azulenedicarboxylic acid, 1,3-diethyl ester

Mass

MS2003-02052WA      
diethyl 1,3-azulenedicarboxylate
C16H16O4            (Mass of molecular ion:    272)

   Source Temperature: 250 °C
   Sample Temperature:  20 °C
   Direct, 70 eV

      27.0       1.5
      29.0       2.4
      63.0       3.7
      74.0       2.1
      75.0       2.4
      76.0       2.5
      77.0       2.1
      87.0       1.5
      89.0       2.0
      91.0       7.4
      91.5       1.0
      98.0       1.1
      99.0       1.6
     100.0       1.2
     101.0       1.2
     113.0       2.2
     114.0       3.4
     115.0      27.5
     116.0       2.8
     125.0       3.2
     126.0      13.6
     127.0       5.3
     128.0       5.7
     142.0       1.5
     153.0       3.0
     154.0       3.8
     155.0      10.9
     156.0       1.7
     169.0       4.0
     170.0       1.5
     171.0       1.5
     172.0       8.5
     173.0       1.1
     183.0       1.2
     197.0       1.5
     199.0      75.5
     200.0      28.7
     201.0       3.9
     213.0       1.1
     216.0       4.1
     227.0      86.5
     228.0      13.5
     229.0       4.1
     243.0       1.0
     244.0       7.7
     245.0       1.2
     257.0       1.9
     258.0       1.3
     272.0     100.0
     273.0      17.3
     274.0       2.3
     287.0       2.4