香豆素-3-羧酸乙酯

Mass

MS2017-05458CM      
ethyl 2-oxo-2H-chromene-3-carboxylate
C12H10O4            (Mass of molecular ion:    218)

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

      15.0       1.9
      26.0       2.2
      27.0      14.0
      28.0       2.2
      29.0      22.9
      37.0       1.3
      38.0       2.5
      39.0      14.3
      43.0       1.8
      44.5       1.5
      45.0       1.0
      50.0       4.8
      51.0       7.7
      53.0       3.3
      61.0       2.4
      62.0      10.5
      63.0      27.9
      64.0       3.4
      74.0       2.3
      75.0       6.2
      76.0       1.2
      77.0       3.1
      78.0       2.0
      86.0       1.9
      87.0       2.9
      88.0       3.7
      89.0      44.6
      90.0      11.5
      91.0       1.3
     101.0      16.8
     102.0       2.6
     105.0       1.2
     116.0       2.7
     117.0       1.2
     118.0      24.4
     119.0       2.2
     130.0       1.9
     131.0       1.1
     144.0       2.8
     145.0      11.6
     146.0     100.0
     147.0      10.1
     162.0       4.7
     173.0      88.4
     174.0      15.4
     175.0       1.9
     190.0       2.8
     218.0      36.9
     219.0       9.0
     220.0       1.2