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2,5-二吡啶羧酸

产品名称 2,5-二吡啶羧酸

CAS号100-26-5

分子式C7H5NO4

分子量167.12

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  • Mass

    MS-NW-1790          
    2,5-pyridinedicarboxylic acid
    C7H5NO4             (Mass of molecular ion:    167)
    

       Source Temperature: 210 °C
       Sample Temperature: 180 °C
       Direct, 75 eV
    

          16.0       1.1
          17.0       1.0
          18.0       4.6
          26.0       5.1
          27.0       5.8
          28.0       6.2
          29.0       1.3
          37.0       2.8
          38.0       5.0
          38.5       2.6
          39.0       9.1
          40.0       2.0
          41.0       2.0
          43.0       1.2
          44.0      20.0
          45.0      13.5
          49.0       4.5
          50.0      20.6
          51.0      34.5
          52.0      14.2
          52.5       1.0
          53.0       4.9
          55.0       1.2
          57.0       1.0
          65.0       1.2
          66.0       3.7
          67.0       3.7
          68.0       4.9
          75.0       3.4
          76.0       6.2
          77.0      21.4
          78.0      30.1
          79.0       4.7
          94.0       6.1
          95.0       1.3
          96.0       3.3
         104.0       1.1
         105.0      14.0
         106.0       8.6
         121.0       1.0
         122.0       9.3
         123.0     100.0
         124.0       7.2
         150.0       2.1
    

90 MHz in DMSO-d6


  • 1H NMR 89.56 MHz
    C7 H5 N O4 0.038 g : 0.5 ml DMSO-d6
    2,5-pyridinedicarboxylic acid
    ChemicalStructure
        Assign.     Shift(ppm)
    A 13. B 9.185 C 8.449 D 8.182 J(B,C)=2.1HZ J(B,D)=0.8HZ J(C,D)=8.1HZ

         Hz     ppm     Int.
    

        824.16   9.203    783
        823.30   9.193    858
        822.02   9.179    956
        821.25   9.170    749
        762.98   8.520    491
        760.84   8.496    436
        758.28   8.467     65
        754.86   8.429    835
        752.81   8.406    808
        736.15   8.220   1000
        735.38   8.212    910
        732.30   8.177     73
        731.45   8.168     69
        728.11   8.130    573
        727.26   8.121    527
    

KBr disc



nujol mull





UV IRRAD. OF NA SALT IN H2O RICH MIXED SOLV.