4,6-dimethyl-2-benzopyrone (14002-89-2) IR1

Mass

MS-IW-1932          
4,6-dimethylcoumarin
C11H10O2            (Mass of molecular ion:    174)

   Source Temperature: 130 °C
   Sample Temperature: 110 °C
   Direct, 75 eV

      27.0       2.0
      38.0       1.1
      39.0       6.9
      50.0       3.2
      51.0       6.9
      52.0       2.6
      53.0       1.8
      57.5       1.7
      58.0       2.6
      62.0       1.8
      63.0       4.5
      64.0       1.3
      65.0       4.2
      72.0       1.9
      73.0       1.4
      74.0       1.6
      75.0       1.7
      76.0       1.5
      77.0       6.7
      78.0       2.8
      87.0       1.4
      89.0       2.2
      91.0      10.3
      92.0       1.2
     102.0       2.6
     103.0       5.1
     104.0       1.0
     115.0      13.4
     116.0       3.6
     117.0      13.1
     118.0       4.2
     128.0       1.0
     129.0       1.4
     131.0      14.7
     132.0       1.7
     145.0      78.3
     146.0      81.6
     147.0       8.7
     171.0       3.1
     173.0       1.0
     174.0     100.0
     175.0      12.2
     176.0       1.1