4,5-Dimethoxybenzocyclobutene-1-carboxylic acid

Mass

MS-KW-0983          
3,4-dimethoxybicyclo(4.2.0)octa-1,3,5-triene-7-carboxylic acid
C11H12O4            (Mass of molecular ion:    208)

   Source Temperature: 170 °C
   Sample Temperature: 130 °C
   Direct, 75 eV

      15.0       2.1
      18.0       4.0
      27.0       2.3
      28.0       3.3
      29.0       1.2
      38.0       3.4
      39.0       9.5
      40.0       1.0
      41.0       1.8
      43.0       2.9
      44.0       1.2
      45.0       2.3
      50.0       6.4
      51.0      13.2
      52.0       3.0
      53.0       5.4
      55.0       3.1
      59.0       1.2
      61.0       1.2
      62.0       2.7
      63.0       6.4
      64.0       1.7
      65.0       5.7
      66.0       5.8
      67.0       3.6
      69.0       2.3
      74.0       1.9
      75.0       2.7
      76.0       5.2
      77.0      19.3
      78.0       4.3
      79.0       6.5
      81.0       4.7
      81.5       1.2
      89.0       5.0
      90.0       2.8
      91.0      12.6
      92.0       2.2
      93.0       1.9
      94.0       4.7
      95.0       2.9
     101.0       1.1
     102.0       2.8
     103.0       3.3
     104.0       2.4
     105.0       7.8
     106.0       1.8
     107.0       4.0
     108.0       1.1
     109.0      13.7
     110.0       1.2
     117.0       1.4
     118.0       3.3
     119.0       9.1
     120.0       2.7
     121.0       3.8
     122.0       3.3
     123.0       1.5
     132.0       3.1
     133.0       5.2
     134.0       1.5
     135.0       2.4
     136.0       2.9
     137.0       7.7
     147.0      10.1
     148.0       5.3
     149.0       2.4
     150.0       2.3
     151.0       7.3
     162.0       2.1
     163.0      20.9
     164.0       6.4
     165.0      15.5
     166.0       1.7
     175.0       1.6
     179.0      14.5
     180.0      15.3
     181.0       1.8
     191.0      10.4
     192.0       4.1
     193.0      95.2
     194.0      10.7
     195.0       1.4
     207.0      13.0
     208.0     100.0
     209.0      12.3
     210.0       1.7