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网站主页CAS数据库列表 6915-15-7更多图谱苹果酸(6915-15-7)核磁图(13CNMR)

苹果酸

产品名称 苹果酸

CAS号6915-15-7

分子式C4H6O5

分子量134.09

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  • Mass

    MS-NW-3754          
    DL-malic acid
    C4H6O5              (Mass of molecular ion:    134)
    

       Source Temperature: 220 °C
       Sample Temperature: 120 °C
       Direct, 75 eV
    

          14.0       3.8
          15.0      14.5
          17.0       1.3
          18.0       5.8
          19.0      21.9
          26.0       5.2
          27.0      20.7
          28.0       6.0
          29.0      21.4
          30.0       1.4
          31.0       2.8
          41.0       2.1
          42.0      24.0
          43.0      97.3
          44.0      22.9
          45.0      26.5
          46.0       2.8
          47.0      14.3
          53.0       1.6
          55.0       8.9
          60.0      15.7
          69.0       2.0
          71.0     100.0
          72.0      25.4
          73.0       2.4
          88.0       6.1
          89.0      84.5
          90.0       7.6
          99.0       1.6
    

90 MHz in CDCl3


  • 1H NMR 89.56 MHz
    C4 H6 O5 0.05 g : 0.5 ml D2O
    DL-malic acid
    ChemicalStructure
        Assign.     Shift(ppm)
    B 4.616 C *1 2.94 D *1 2.89 THE SOLVENT SIGNAL REMOVED.

         Hz     ppm     Int.
    

        419.38   4.683    293
        414.19   4.625    370
        413.19   4.614    444
        408.00   4.556    331
        262.75   2.934   1000
        257.69   2.878    628
        256.31   2.862    587
    

in D2O



KBr disc



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