Mass

MS-IW-3127          
1a-methyl-1a,7a-dihydronaphth(2,3-b)oxirene-2,7-dione
C11H8O3             (Mass of molecular ion:    188)

   Source Temperature: 120 °C
   Sample Temperature:  90 °C
   Direct, 75 eV

      15.0       1.4
      27.0       3.5
      28.0       2.1
      29.0       1.0
      38.0       2.1
      39.0       5.2
      43.0      28.4
      50.0      16.0
      51.0       8.7
      52.0       2.5
      53.0       2.0
      55.0       2.9
      62.0       3.4
      63.0       7.0
      64.0       1.2
      66.0       2.3
      69.0       3.6
      74.0       6.6
      75.0       6.7
      76.0      26.5
      77.0      20.3
      78.0       3.2
      83.0       1.0
      86.0       1.0
      87.0       1.3
      88.0       1.6
      89.0      33.2
      90.0       3.6
      92.0       1.0
     101.0       3.6
     102.0       2.8
     103.0      12.6
     104.0      14.9
     105.0      27.5
     106.0       2.1
     114.0       1.2
     115.0       3.5
     117.0       2.0
     118.0       1.5
     131.0      27.4
     132.0      18.3
     133.0       4.5
     145.0       1.2
     146.0       5.3
     159.0      15.8
     160.0      29.4
     161.0       3.3
     173.0      73.5
     174.0       8.4
     187.0       3.7
     188.0     100.0
     189.0      12.4
     190.0       1.4