2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one(1693-94-3) IR2

Mass

MS-IW-3003          
2-methylpyrido(1,2-a)pyrimidin-4-one
C9H8N2O             (Mass of molecular ion:    160)

   Source Temperature: 130 °C
   Sample Temperature: 100 °C
   Direct, 75 eV

      27.0       3.6
      28.0       3.0
      37.0       1.6
      38.0       3.8
      39.0      11.1
      40.0       3.3
      50.0       2.7
      51.0      15.8
      52.0       6.7
      53.0       1.4
      54.0       1.2
      55.0       2.6
      63.0       1.5
      64.0       2.7
      65.0       1.8
      66.0       4.3
      67.0       3.3
      68.0       1.0
      76.0       1.3
      77.0       1.6
      78.0      52.0
      79.0      14.9
      80.0       2.5
      90.0       1.0
      91.0       1.4
      92.0       1.0
      93.0       1.3
     104.0       2.2
     105.0       3.5
     118.0       1.5
     119.0       2.1
     121.0       1.6
     131.0      44.7
     132.0      74.6
     133.0       6.9
     145.0       1.8
     159.0       6.9
     160.0     100.0
     161.0      10.7