2H-1-Benzopyran-2-one, 6-ethyl-7-hydroxy-(19345-81-4) MS

Mass

MS2004-02392WA      
6-ethyl-7-hydroxycoumarin
C11H10O3            (Mass of molecular ion:    190)

   Source Temperature: 245 °C
   Sample Temperature:  20 °C
   Direct, 70 eV

      18.0       2.1
      39.0       2.4
      50.0       1.6
      51.0       4.4
      52.0       1.0
      62.0       1.2
      63.0       2.8
      65.0       4.2
      67.0       1.0
      69.0       9.4
      73.5       1.0
      74.0       1.1
      75.0       1.0
      77.0       4.5
      78.0       1.5
      79.0       1.6
      89.0       2.3
      90.0       1.1
      91.0       7.3
      92.0       1.0
     103.0       1.5
     105.0       1.9
     115.0       2.4
     119.0       4.1
     131.0       1.2
     133.0       1.3
     147.0      40.1
     148.0       4.1
     160.0       1.0
     161.0       1.5
     162.0       7.0
     175.0     100.0
     176.0      10.9
     177.0       1.2
     189.0       2.2
     190.0      61.6
     191.0       7.5