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4-Methoxybenzoic acid

Product Name 4-Methoxybenzoic acid

CAS100-09-4

MFC8H8O3

MW152.15

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  • Mass

    MS-IW-8017          
    anisic acid
    C8H8O3              (Mass of molecular ion:    152)
    

       Source Temperature: 220 °C
       Sample Temperature: 150 °C
       Reservoir, 75 eV
    

          18.0       1.0
          27.0       1.5
          28.0       1.4
          31.0       1.0
          38.0       2.4
          39.0       3.4
          45.0       1.0
          50.0       3.8
          51.0       2.8
          53.0       3.3
          62.0       2.2
          63.0       6.5
          64.0       6.3
          65.0       4.3
          74.0       2.1
          75.0       1.7
          76.0       2.0
          77.0      18.3
          78.0       2.4
          79.0       2.1
          81.0       5.1
          92.0       9.4
          93.0       1.1
         105.0       2.2
         107.0      15.7
         108.0       1.5
         109.0       3.3
         135.0     100.0
         136.0       9.0
         137.0       1.1
         152.0      94.9
         153.0       8.6
    

400 MHz in DMSO-d6

90 MHz in DMSO-d6


  • 1H NMR 399.65 MHz
    C8 H8 O3 0.038 g : 0.5 ml DMSO-d6
    anisic acid
    ChemicalStructure
        Assign.     Shift(ppm)
    A 12.7 B 7.932 C 7.035 D 3.841

         Hz     ppm     Int.
    

       5065.47  12.675     37
       3177.57   7.951     38
       3174.82   7.945    256
       3172.81   7.939     87
       3170.43   7.934     22
       3168.05   7.928     90
       3166.03   7.923    262
       3163.29   7.916     32
       2818.93   7.054     40
       2816.18   7.047    265
       2814.17   7.042     89
       2809.22   7.030     85
       2807.21   7.025    245
       2804.46   7.018     30
       1535.30   3.842   1000
    


  • 1H NMR 89.56 MHz
    C8 H8 O3 0.041 g : 0.5 ml DMSO-d6
    anisic acid
    ChemicalStructure
        Assign.     Shift(ppm)
    A 13. B 7.914 C 7.027 D 3.836

         Hz     ppm     Int.
    

        714.01   7.973    241
        711.88   7.949     74
        707.09   7.896     72
        704.96   7.872    304
        702.22   7.841     37
        636.34   7.106     23
        633.52   7.074    238
        631.38   7.050     67
        626.60   6.997     54
        624.55   6.974    189
        343.59   3.837   1000
    

in DMSO-d6



KBr disc



nujol mull



4880 A,200 M,powder