1,3-Dioxo-1H,3H-benzo[de]isochromene-6-carboxylic acid

Mass

MS-IW-8645          
1,4,5-naphthalenetricarboxylic acid 4,5-anhydride
C13H6O5             (Mass of molecular ion:    242)

   Source Temperature: 190 °C
   Sample Temperature: 240 °C
   Direct, 75 eV

      17.0       1.3
      18.0       6.5
      28.0       7.0
      44.0       4.1
      50.0       2.1
      51.0       3.4
      57.0       2.5
      61.0       3.1
      61.5       1.5
      62.0       7.8
      62.5       5.9
      63.0       5.9
      71.0       2.6
      73.0       1.0
      74.0      10.2
      75.0      11.6
      76.0       4.5
      76.5       5.2
      77.0       1.7
      85.0       2.9
      86.0       2.7
      87.0       2.9
      88.0       2.5
      90.0       3.2
      90.5       1.8
      98.0       5.8
      99.0      11.4
     100.0       1.3
     113.0       4.5
     114.0       7.2
     115.0       1.1
     122.0       2.3
     123.0       1.0
     124.0       2.4
     125.0      15.2
     126.0       6.6
     142.0       2.9
     153.0      30.1
     154.0       7.8
     170.0      35.6
     171.0       4.6
     198.0     100.0
     199.0      14.6
     200.0       1.4
     216.0       1.3
     225.0       1.5
     242.0      82.7
     243.0      12.1
     244.0       1.6