3,4-Diaminobenzoic acid

Mass

MS-NW-2395          
3,4-diaminobenzoic acid
C7H8N2O2            (Mass of molecular ion:    152)

   Source Temperature: 250 °C
   Sample Temperature: 180 °C
   Direct, 75 eV

      17.0       2.8
      18.0      14.0
      26.0       1.4
      27.0       5.6
      28.0       6.7
      29.0       1.2
      37.0       1.0
      38.0       1.8
      39.0       3.5
      40.0       1.0
      41.0       3.5
      42.0       1.5
      43.0       1.7
      44.0       4.2
      45.0       1.1
      50.0       2.7
      51.0       4.8
      52.0       7.8
      53.0       9.2
      53.5       1.3
      54.0       2.6
      55.0       1.8
      57.0       1.5
      62.0       3.0
      63.0       3.7
      64.0       1.4
      65.0       1.9
      66.0       1.0
      67.0       1.7
      67.5       1.2
      68.0       1.4
      69.0       3.1
      76.0       2.7
      77.0       1.8
      78.0       4.6
      79.0       5.1
      80.0      17.2
      81.0       3.1
      90.0       5.7
      91.0       1.4
      93.0       1.0
      95.0       1.2
      96.0       2.7
     105.0       2.7
     106.0       4.9
     107.0      25.3
     108.0       4.4
     120.0       1.0
     124.0       4.1
     135.0      42.5
     136.0       3.8
     137.0       1.6
     151.0       3.1
     152.0     100.0
     153.0       8.2

Assign. Shift(ppm) A 7.163 B 7.100 C 6.517 D 5.3 J(A,B)=1.8HZ J(B,C)=8.1HZ

     Hz     ppm     Int.

   2864.07   7.167    912
   2862.09   7.162   1000
   2854.77   7.144     24
   2854.31   7.143     24
   2852.33   7.138     23
   2851.72   7.136     23
   2851.41   7.135     23
   2842.86   7.114    516
   2841.03   7.109    438
   2834.78   7.094    539
   2832.95   7.089    478
   2617.49   6.550     22
   2617.03   6.549     23
   2608.64   6.528    871
   2600.56   6.508    833
   2113.65   5.289     28