Isoimperatorin

Mass

MS-IW-7263          
4-(3-methyl-2-butenyloxy)furo(3,2-g)chromen-7-one
C16H14O4            (Mass of molecular ion:    270)

   Source Temperature: 160 °C
   Sample Temperature: 130 °C
   Direct, 75 eV

      18.0       1.8
      27.0       2.6
      38.0       1.4
      39.0       6.1
      40.0       3.3
      41.0      20.4
      42.0       2.4
      50.0       1.8
      51.0       3.9
      53.0       8.5
      59.0       1.6
      62.0       1.1
      63.0       2.7
      65.0       1.7
      66.0       1.3
      67.0      16.3
      68.0      11.4
      69.0      35.4
      70.0       2.0
      87.0       2.1
      89.0       4.6
      90.0       3.2
     101.0       1.5
     118.0       5.0
     145.0       4.1
     146.0       2.9
     173.0       2.1
     174.0      20.3
     175.0       2.3
     201.0       3.0
     202.0     100.0
     203.0      12.8
     204.0       1.6
     215.0       4.8
     227.0       2.3
     255.0       6.3
     256.0       1.0
     270.0       9.3
     271.0       2.1