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二甲基丙二酸

产品名称 二甲基丙二酸

CAS号595-46-0

分子式C5H8O4

分子量132.11

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  • Mass

    MS-KW-0579          
    dimethylmalonic acid
    C5H8O4              (Mass of molecular ion:    132)
    

       Source Temperature: 130 °C
       Sample Temperature: 100 °C
       Direct, 75 eV
    

          15.0       3.3
          16.0       1.0
          17.0       2.3
          18.0      13.5
          26.0       4.3
          27.0      32.8
          28.0      13.7
          29.0       8.2
          31.0       9.7
          37.0       2.1
          38.0       3.8
          39.0      31.1
          40.0       8.3
          41.0      85.0
          42.0      56.7
          43.0      80.3
          44.0      55.9
          45.0      65.3
          46.0       3.2
          47.0       2.6
          53.0       2.8
          55.0      16.8
          56.0       2.3
          57.0       1.9
          58.0       2.5
          59.0      18.9
          60.0       5.8
          68.0       4.6
          69.0      13.6
          70.0     100.0
          71.0       7.2
          72.0       1.3
          73.0      87.2
          74.0       4.1
          85.0       3.0
          86.0      22.9
          87.0      42.4
          88.0      41.3
          89.0       2.1
          99.0       4.7
         114.0       6.8
         115.0       7.1
         132.0       7.6
         133.0       1.1
    

400 MHz in DMSO-d6


  • 1H NMR 399.65 MHz
    C5H8O4 0.039 g : 0.5 ml DMSO-d6
    dimethylmalonic acid
    ChemicalStructure
        Assign.     Shift(ppm)
    A 1.285

         Hz     ppm     Int.
    

       5038.88  12.605      2
        577.02   1.444      5
        534.52   1.338      6
        523.90   1.311     17
        513.27   1.284   1000
        447.51   1.120      5
    

in DMSO-d6

D2O





KBr disc



nujol mull



4880 A,200 M,powder