1(3H)-Isobenzofuranone, 4,5,6,7-tetramethyl-

Mass

MS-IW-8351          
4,5,6,7-tetramethyl-1(3H)-isobenzofuranone
C12H14O2            (Mass of molecular ion:    190)

   Source Temperature: 150 °C
   Sample Temperature: 120 °C
   Direct, 75 eV

      18.0       2.5
      39.0       1.9
      41.0       2.1
      51.0       2.2
      53.0       1.3
      63.0       1.2
      64.0       1.4
      65.0       1.8
      77.0       2.9
      78.0       1.2
      79.0       1.4
      87.0       1.2
      87.5       3.2
      91.0       5.5
      93.0       1.1
      95.0       2.4
     103.0       1.2
     105.0       3.8
     115.0       4.3
     116.0       1.8
     117.0       4.2
     118.0       1.6
     119.0       2.5
     128.0       1.7
     129.0       1.4
     131.0       2.0
     132.0       1.0
     133.0      27.2
     134.0       3.1
     147.0       1.8
     161.0     100.0
     162.0      12.2
     175.0       5.8
     189.0       5.6
     190.0      65.2
     191.0       8.9