4',5,7-TRIMETHOXYFLAVONE(5631-70-9) ¹H NMR

Mass

MS-IW-4369          
5,7-dimethoxy-2-(p-methoxyphenyl)-4H-chromen-4-one
C18H16O5            (Mass of molecular ion:    312)

   Source Temperature: 190 °C
   Sample Temperature: 140 °C
   Direct, 75 eV

      63.0       1.5
      69.0       1.9
      77.0       1.2
      89.0       2.7
     107.0       1.3
     117.0       3.8
     122.0       1.9
     127.0       1.1
     132.0      14.3
     133.0       2.0
     135.0       1.9
     137.0       2.3
     142.0      11.0
     142.5       2.0
     150.0       3.1
     151.0       1.6
     152.0       1.1
     237.0       2.5
     239.0       5.2
     240.0       2.3
     251.0       2.4
     252.0       1.0
     254.0       2.5
     265.0       2.1
     266.0      25.4
     267.0       6.0
     268.0       5.2
     269.0       2.9
     281.0      15.4
     282.0       8.2
     283.0      24.7
     284.0       4.6
     294.0       3.6
     295.0       5.0
     296.0       3.1
     311.0      49.7
     312.0     100.0
     313.0      20.4
     314.0       3.0