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3-(2,3,4-三甲氧基苯基)丙酸

产品名称 3-(2,3,4-三甲氧基苯基)丙酸

CAS号33130-04-0

分子式C12H16O5

分子量240.25


  • Mass

    MS-IW-0805          
    3-(2,3,4-trimethoxyphenyl)propionic acid
    C12H16O5            (Mass of molecular ion:    240)
    

       Source Temperature: 120 °C
       Sample Temperature: 100 °C
       Direct, 75 eV
    

          18.0       1.4
          28.0       1.0
          39.0       1.0
          55.0       1.4
          65.0       1.7
          77.0       2.6
          79.0       1.1
          91.0       5.2
          95.0       1.5
         105.0       1.5
         106.0       1.7
         107.0       1.2
         120.0       1.1
         121.0       2.9
         123.0       4.0
         133.0       2.0
         135.0       1.4
         136.0       7.2
         137.0       2.3
         149.0       2.1
         151.0       3.4
         153.0       1.9
         161.0       1.1
         165.0       2.7
         166.0      33.7
         167.0       6.4
         168.0       1.2
         179.0       1.9
         180.0       1.0
         181.0     100.0
         182.0      10.9
         183.0       3.3
         192.0       1.3
         193.0       5.3
         194.0       4.4
         195.0       1.1
         209.0       2.2
         225.0       1.1
         240.0      92.5
         241.0      12.3
         242.0       1.7
    

400 MHz in CDCl3


  • 1H NMR 399.65 MHz
    C12 H16 O5 0.037 g : 0.5 ml CDCl3
    3-(2,3,4-trimethoxyphenyl)propionic acid
    ChemicalStructure
        Assign.     Shift(ppm)
    A 11. B 6.851 C 6.600 D *1 3.900 E *1 3.865 F *1 3.839 G 2.887 J 2.642

         Hz     ppm     Int.
    

       2742.74   6.863     94
       2734.13   6.842    114
       2641.63   6.610    128
       2633.02   6.589    113
       1558.93   3.901   1000
       1544.83   3.866    984
       1534.39   3.840    795
       1162.37   2.909     62
       1154.86   2.890    115
       1151.57   2.882     23
       1146.81   2.870     87
       1063.46   2.661     96
       1058.89   2.650     24
       1056.69   2.645     75
       1055.22   2.641    143
       1053.02   2.635     27
       1047.90   2.623     70
    

in CDCl3



KBr disc



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