2,5-二羟基苯甲酸

产品名称 2,5-二羟基苯甲酸

CAS号490-79-9

分子式C7H6O4

分子量154.12

¹³CNMR

Mass

MS-NW-0197          
2,5-dihydroxybenzoic acid
C7H6O4              (Mass of molecular ion:    154)

   Source Temperature: 200 °C
   Sample Temperature:   0 °C
   Direct, 75 eV

      26.0       4.0
      27.0       6.0
      29.0       2.9
      37.0       1.2
      38.0       1.5
      39.0       2.7
      45.0       2.5
      49.0       1.0
      50.0       4.4
      51.0       8.5
      52.0      26.6
      53.0      15.6
      54.0       7.6
      55.0       4.0
      61.0       1.6
      62.0       2.4
      63.0       3.2
      69.0       2.7
      77.0       1.0
      79.0       5.5
      80.0      28.3
      81.0       5.4
      82.0       9.7
     107.0       3.3
     108.0      30.6
     109.0       3.6
     135.0       3.8
     136.0     100.0
     137.0       9.8
     138.0       1.2
     154.0      38.1
     155.0       3.1

90 MHz in D2O

90 MHz in DMSO-d6

¹H NMR	89.56 MHz
C₇ H₆ O₄	0.045 g : 0.5 ml D₂O
2,5-dihydroxybenzoic acid

    Assign.     Shift(ppm)

      A             7.19
      B             7.00
      C             6.82
     
     THE SOLVENT SIGNAL REMOVED.

     Hz     ppm     Int.

    645.94   7.213    539
    643.00   7.180    809
    634.63   7.087    421
    631.75   7.054    191
    625.75   6.987    797
    622.75   6.954    654
    613.19   6.847   1000
    604.31   6.748    417

¹H NMR	89.56 MHz
C₇ H₆ O₄	0.047 g : 0.5 ml DMSO-d₆
2,5-dihydroxybenzoic acid

    Assign.     Shift(ppm)

      A            10.6
      B             7.209
      C             6.988
      D             6.829
     
     HSP-04-875 : D2O

     Hz     ppm     Int.

    647.62   7.232    564
    647.11   7.226    598
    644.71   7.199    815
    644.20   7.193    743
    633.61   7.075    395
    630.62   7.042    208
    627.80   7.010     59
    624.80   6.977    851
    621.81   6.943    726
    618.48   6.906     64
    614.29   6.859   1000
    613.78   6.854    963
    605.49   6.761    377
    604.98   6.756    356

in D2O

KBr disc

nujol mull

4880 A,200 M,powder

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