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3-甲氧基水杨酸

产品名称 3-甲氧基水杨酸

CAS号877-22-5

分子式C8H8O4

分子量168.15

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  • Mass

    MS-IW-6998          
    3-methoxysalicylic acid
    C8H8O4              (Mass of molecular ion:    168)
    

       Source Temperature: 140 °C
       Sample Temperature: 130 °C
       Direct, 75 eV
    

          18.0       2.3
          26.0       1.1
          27.0       2.9
          28.0       2.2
          29.0       1.4
          37.0       1.2
          38.0       2.0
          39.0       5.3
          41.0       1.0
          45.0       2.0
          48.5       2.9
          49.0       1.1
          50.0       5.1
          51.0      16.6
          52.0       5.8
          53.0       9.6
          54.0       1.3
          55.0       6.0
          61.0       1.1
          62.0       2.7
          62.5       1.6
          63.0       6.0
          64.0       3.2
          65.0       6.2
          66.0       3.8
          68.0       1.4
          74.0       2.7
          75.0       1.1
          76.0       2.4
          77.0       2.3
          78.0       1.1
          79.0      12.3
          80.0       2.9
          81.0       1.3
          91.0       2.5
          92.0      22.1
          93.0       5.3
          94.0       4.0
         104.0       1.9
         105.0       1.6
         106.0       1.1
         107.0      34.3
         108.0       5.7
         109.0       1.3
         119.0       2.5
         120.0      31.4
         121.0      36.9
         122.0     100.0
         123.0       8.1
         124.0       1.5
         135.0       1.8
         136.0       1.3
         147.0       1.0
         149.0      13.1
         150.0      81.4
         151.0       9.9
         152.0       2.0
         168.0      70.9
         169.0       6.8
    

400 MHz at 50C


  • 1H NMR 399.65 MHz
    C8 H8 O4 0.038 g : 0.5 ml CDCl3 at 50C
    3-methoxysalicylic acid
    ChemicalStructure
        Assign.     Shift(ppm)
    A 10. B 8. C 7.528 D 7.096 E 6.860 F 3.907

         Hz     ppm     Int.
    

       3013.82   7.542    109
       3012.36   7.538    114
       3005.76   7.521    121
       3004.30   7.518    116
       2841.10   7.109     83
       2839.63   7.106     84
       2833.04   7.089     98
       2831.75   7.086     93
       2749.33   6.880    119
       2741.27   6.860    199
       2733.21   6.840     96
       1561.49   3.908   1000
    

in CDCl3



KBr disc



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