2H-1-Benzopyran-2-one, 7-methyl-6-nitro-

Mass

MS-IW-2246          
7-methyl-6-nitrocoumarin
C10H7NO4            (Mass of molecular ion:    205)

   Source Temperature: 180 °C
   Sample Temperature: 150 °C
   Direct, 75 eV

      27.0       1.1
      28.0       1.2
      38.0       1.8
      39.0       4.6
      50.0       5.0
      51.0      13.3
      52.0       3.1
      53.0       2.1
      55.0       2.9
      61.0       1.1
      62.0       3.6
      63.0       7.5
      64.0       1.2
      65.0       3.0
      74.0       2.6
      75.0       3.4
      76.0       5.5
      77.0      22.8
      78.0       2.3
      79.0       5.0
      83.0       5.5
      86.0       1.1
      87.0       1.9
      88.0       1.1
      89.0       1.4
      91.0       3.4
     101.0       1.2
     102.0       8.8
     103.0      20.6
     104.0       8.6
     105.0       3.7
     118.0       1.0
     119.0       1.9
     130.0       1.9
     131.0       7.3
     132.0      15.6
     133.0       7.0
     147.0       4.1
     159.0       1.4
     160.0      10.3
     161.0       1.5
     175.0       1.9
     188.0     100.0
     189.0      11.8
     190.0       1.2
     205.0      41.3
     206.0       4.9