6,7-dimethoxyphthalide (569-31-3) IR2

Mass

MS-IW-2520          
6,7-dimethoxyphthalide
C10H10O4            (Mass of molecular ion:    194)

   Source Temperature: 160 °C
   Sample Temperature: 110 °C
   Direct, 75 eV

      15.0       1.8
      29.0       1.5
      37.0       1.1
      38.0       2.3
      39.0       4.9
      41.0       1.6
      49.0       1.1
      50.0       6.9
      51.0       9.1
      52.0       3.8
      53.0       4.6
      55.0       2.0
      61.0       1.8
      62.0       4.0
      63.0       8.6
      64.0       6.0
      65.0       6.5
      66.0       2.9
      67.0       1.8
      74.0       2.5
      75.0       3.8
      76.0       5.8
      77.0      17.4
      78.0      10.2
      79.0       7.6
      80.0       3.6
      89.0       4.4
      90.0       9.6
      91.0       5.4
      92.0       8.9
      93.0       5.9
      94.0       2.0
      95.0       6.9
     104.0       2.6
     105.0       8.6
     106.0       6.1
     107.0      10.4
     108.0       3.6
     109.0       2.6
     116.0       1.0
     118.0      21.4
     119.0      11.7
     120.0      18.6
     121.0      19.2
     122.0      18.8
     123.0       4.9
     133.0       4.3
     134.0      11.0
     135.0       9.8
     136.0       7.6
     137.0       1.2
     147.0      48.4
     148.0      14.7
     149.0       9.9
     150.0       9.7
     151.0       6.4
     161.0       4.2
     162.0       1.2
     163.0      12.4
     164.0       1.9
     165.0      87.0
     166.0       9.5
     167.0       1.0
     175.0       1.2
     176.0      47.2
     177.0       6.5
     178.0       1.0
     179.0       4.0
     191.0       1.1
     193.0      12.2
     194.0     100.0
     195.0      11.3
     196.0       1.4