4',7-Dimethoxyisoflavone

Mass

MS-IW-3399          
7-methoxy-3-(p-methoxyphenyl)-4H-chromen-4-one
C17H14O4            (Mass of molecular ion:    282)

   Source Temperature: 150 °C
   Sample Temperature: 130 °C
   Direct, 75 eV

      51.0       1.7
      63.0       3.6
      75.0       1.0
      76.0       1.0
      79.0       2.0
      89.0       6.7
     107.0       2.9
     117.0       6.6
     122.0       4.0
     132.0      41.3
     133.0       4.3
     133.5       2.6
     134.0       1.0
     139.0       1.5
     140.0       1.1
     141.0       5.5
     150.0       8.3
     151.0       1.7
     152.0       1.2
     196.0       1.1
     211.0       1.0
     239.0       3.8
     251.0       1.4
     266.0       1.1
     267.0       9.5
     268.0       1.7
     281.0      23.4
     282.0     100.0
     283.0      18.4
     284.0       2.5