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2-Aminobenzimidazole

Product Name 2-Aminobenzimidazole

CAS934-32-7

MFC7H7N3

MW133.15

¹³CNMR

Mass

MS-NW-2238          
2-aminobenzimidazole
C7H7N3              (Mass of molecular ion:    133)

   Source Temperature: 210 °C
   Sample Temperature: 120 °C
   Direct, 75 eV

      18.0       4.0
      27.0       1.1
      28.0       3.1
      29.0       1.6
      38.0       1.4
      39.0       1.8
      43.0       2.0
      50.0       1.2
      51.0       3.7
      52.0       4.3
      53.0       2.1
      63.0       3.3
      64.0       3.1
      65.0       1.6
      66.5       4.3
      77.0       1.5
      78.0       4.4
      79.0       8.6
      80.0       1.7
      90.0       2.8
      91.0       2.1
     105.0      17.9
     106.0      12.9
     107.0       1.4
     132.0       4.6
     133.0     100.0
     134.0       8.8

400 MHz in DMSO-d6

¹H NMR	399.65 MHz
C₇ H₇ N₃	0.038 g : 0.5 ml DMSO-d₆
2-aminobenzimidazole

    Assign.     Shift(ppm)

      A             7.116
      B             6.862
      C             6.26
     
     broad signal at lower field.

     Hz     ppm     Int.

   2853.55   7.141     58
   2852.33   7.138     84
   2848.82   7.129    858
   2845.61   7.121    805
   2843.02   7.114    768
   2839.81   7.106   1000
   2836.15   7.097    111
   2835.24   7.095    100
   2751.46   6.885     85
   2750.40   6.883    115
   2746.73   6.873    955
   2743.53   6.865    729
   2740.94   6.859    751
   2737.73   6.851    830
   2734.22   6.842     96
   2733.00   6.839     78
   2502.29   6.262    291

in DMSO-d6

KBr disc

nujol mull

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