1,2,3,4-Naphthalenetetracarboxylic acid, 1,2,3,4-tetramethyl ester

Mass

MS-IW-8692          
tetramethyl 1,2,3,4-naphthalenetetracarboxylate
C18H16O8            (Mass of molecular ion:    360)

   Source Temperature: 150 °C
   Sample Temperature: 140 °C
   Direct, 75 eV

      45.0       2.6
     113.0       1.0
     125.0       2.1
     126.0       3.4
     127.0       1.8
     149.0       5.7
     149.5       1.0
     153.0       1.9
     154.0       3.2
     155.0       1.1
     164.0       2.1
     168.0       1.2
     170.0       2.1
     182.0       1.2
     197.0       1.7
     211.0       2.7
     212.0       2.6
     213.0       1.2
     227.0       2.0
     255.0       1.4
     271.0       1.2
     283.0       6.3
     284.0       1.0
     301.0       2.8
     313.0       2.6
     314.0       1.6
     329.0     100.0
     330.0      18.9
     331.0       3.1
     360.0      42.1
     361.0       8.2
     362.0       1.4