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2,3-二甲氧基肉桂酸

产品名称 2,3-二甲氧基肉桂酸

CAS号7345-82-6

分子式C11H12O4

分子量208.21

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  • Mass

    MS-IW-6983          
    trans-2,3-dimethoxycinnamic acid
    C11H12O4            (Mass of molecular ion:    208)
    

       Source Temperature: 140 °C
       Sample Temperature: 120 °C
       Direct, 75 eV
    

          18.0       4.0
          28.0       1.7
          38.0       1.1
          39.0       2.5
          45.0       1.1
          50.0       2.0
          51.0       6.1
          52.0       1.4
          53.0       1.3
          55.0       1.7
          59.0       1.1
          62.0       1.2
          63.0       2.9
          65.0       3.6
          66.0       2.8
          74.0       1.1
          75.0       1.5
          76.0       1.8
          77.0      10.5
          78.0       3.3
          79.0       1.7
          88.0       2.3
          89.0       3.4
          90.0       1.3
          91.0      12.2
          92.0       1.6
          94.0       1.6
         102.0       1.1
         103.0       4.5
         104.0       1.5
         105.0       7.0
         106.0       2.0
         107.0       1.1
         109.0       1.5
         117.0       1.0
         118.0       2.6
         119.0       2.7
         120.0       3.1
         121.0      17.9
         122.0       2.1
         123.0       1.2
         131.0       2.6
         132.0       1.0
         133.0      10.5
         134.0      17.0
         135.0       2.5
         137.0       1.2
         147.0       5.8
         148.0      11.7
         149.0       7.8
         150.0       1.6
         161.0       6.0
         162.0       4.7
         163.0       1.5
         175.0       4.7
         176.0      41.8
         177.0      90.3
         178.0      10.2
         179.0       1.1
         191.0       4.4
         193.0       1.0
         208.0     100.0
         209.0      12.5
         210.0       1.5
    

400 MHz in DMSO-d6


  • 1H NMR 399.65 MHz
    C11 H12 O4 0.041 g : 0.5 ml DMSO-d6
    trans-2,3-dimethoxycinnamic acid
    ChemicalStructure
        Assign.     Shift(ppm)
    A 12.5 B 7.828 C 7.334 D 7.12 E 6.538 F *1 3.839 G *1 3.780

         Hz     ppm     Int.
    

       3136.88   7.850    151
       3120.64   7.809    161
       2936.23   7.348     67
       2932.81   7.339     63
       2930.04   7.332     77
       2926.83   7.324     80
       2852.26   7.137     36
       2847.34   7.125    332
       2844.14   7.117    149
       2841.36   7.110    131
       2833.24   7.090     21
       2621.05   6.559    193
       2604.81   6.518    179
       1534.47   3.840    789
       1528.91   3.826     24
       1510.75   3.781   1000
    

in DMSO-d6



KBr disc



nujol mull



4880 A,200 M,powder