4-Bromoisophthalic acid

Mass

MS-NW-9787          
4-bromoisophthalic acid
C8H5BrO4            (Mass of molecular ion:    244)

   Source Temperature: 170 °C
   Sample Temperature: 140 °C
   Direct, 75 eV

      17.0       1.5
      18.0       7.6
      27.0       1.1
      28.0       1.8
      37.0       2.8
      38.0       2.8
      39.0       4.3
      44.0       2.0
      45.0       5.7
      49.0       1.7
      50.0      14.0
      51.0       5.1
      53.0       6.5
      55.0       1.1
      61.0       1.0
      62.0       2.4
      63.0      11.8
      64.0       7.8
      65.0       3.1
      66.0       1.0
      68.5       2.7
      69.0       1.4
      73.0       4.5
      74.0      23.3
      75.0      27.5
      76.0       8.5
      77.0       3.2
      78.0       1.0
      80.0       1.3
      81.0       5.2
      82.0       1.3
      90.0       1.2
      91.0       5.5
      92.0      17.5
      93.0       1.5
     102.0       2.8
     103.0       4.7
     105.0       1.5
     106.0       1.3
     109.0       1.8
     117.0       2.3
     119.0       5.2
     120.0       3.9
     143.0      19.7
     144.0       1.2
     145.0      19.0
     146.0       1.0
     149.0       1.2
     153.0       1.8
     154.0       1.7
     155.0       5.1
     156.0       1.8
     157.0       3.3
     165.0       1.2
     171.0       2.0
     173.0       1.7
     181.0       1.3
     183.0       4.4
     185.0       3.1
     199.0      18.5
     200.0       2.2
     201.0      17.6
     202.0       1.8
     216.0       1.3
     227.0      87.8
     228.0       7.8
     229.0      85.6
     230.0       7.6
     244.0     100.0
     245.0       9.0
     246.0      97.9
     247.0       8.8
     248.0       1.1

Assign. Shift(ppm) A 13.6 B 8.277 C 7.952 D 7.886 J(B,C)=2.1HZ J(C,D)=8.3HZ

     Hz     ppm     Int.

   5424.80  13.574     54
   3309.33   8.281    881
   3307.19   8.276    895
   3184.75   7.969    416
   3182.61   7.964    401
   3179.62   7.957     49
   3176.41   7.948    692
   3174.28   7.943    731
   3155.05   7.895   1000
   3146.71   7.874    599