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苹果酸二乙酯

产品名称 苹果酸二乙酯

CAS号626-11-9

分子式C8H14O5

分子量190.19

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  • Mass

    MS-NW-1312          
    diethyl DL-malate
    C8H14O5             (Mass of molecular ion:    190)
    

       Source Temperature: 260 °C
       Sample Temperature: 180 °C
       Reservoir, 75 eV
    

          14.0       1.0
          15.0       5.5
          18.0       1.8
          19.0       6.7
          26.0       3.4
          27.0      20.0
          28.0       5.3
          29.0      57.0
          30.0       1.6
          31.0       7.8
          42.0       6.1
          43.0      38.9
          44.0      14.0
          45.0      16.0
          46.0       1.1
          47.0       8.9
          53.0       1.0
          54.0       1.2
          55.0       5.9
          60.0       5.2
          61.0       1.8
          70.0       1.0
          71.0     100.0
          72.0       7.8
          73.0       3.9
          75.0      18.5
          82.0       1.2
          88.0       5.9
          89.0      39.2
          90.0       2.4
          99.0       9.0
         100.0       3.3
         116.0       4.1
         117.0      97.4
         118.0       9.6
         119.0       1.0
         126.0       1.9
         127.0      13.0
         128.0       3.4
         144.0       2.6
         145.0      11.7
         174.0       1.0
    

90 MHz in CDCl3


  • 1H NMR 89.56 MHz
    C8 H14 O5 0.04 ml : 0.5 ml CDCl3
    diethyl DL-malate
    ChemicalStructure
        Assign.     Shift(ppm)
    A 4.49 B 4.258 C 4.181 D 3.38 E *1 2.86 F *1 2.76 G 1.308 J 1.271

         Hz     ppm     Int.
    

        407.88   4.555     97
        402.19   4.491    141
        397.19   4.435    109
        393.06   4.389     89
        385.88   4.309    327
        384.75   4.297    142
        383.25   4.280     48
        382.44   4.271     58
        378.75   4.230    398
        377.50   4.216    364
        375.31   4.191     66
        371.63   4.150    182
        370.38   4.136    358
        363.31   4.057    117
        302.50   3.378    106
        265.19   2.962     39
        261.38   2.919     39
        260.19   2.906     32
        257.69   2.878     32
        256.88   2.869     31
        254.88   2.846    363
        250.13   2.793    215
        249.00   2.781    217
        125.50   1.402     53
        123.69   1.382    412
        121.94   1.362     99
        120.69   1.348    475
        118.38   1.322    126
        116.63   1.303    889
        114.81   1.282    185
        113.56   1.268   1000
        111.25   1.243     80
        109.44   1.222    378
        107.63   1.202     91
        106.38   1.188    418
    

in CDCl3



CCl4 solution



Liquid film



4880 A,200 M,liquid