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网站主页CAS数据库列表 112-95-8更多图谱正二十烷(112-95-8)核磁图(1HNMR)

正二十烷

产品名称 正二十烷

CAS号112-95-8

分子式C20H42

分子量282.55

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  • Mass

    MS-NW-6004          
    icosane
    C20H42              (Mass of molecular ion:    282)
    

       Source Temperature: 150 °C
       Sample Temperature: 130 °C
       Direct, 75 eV
    

          17.0       1.3
          18.0       5.9
          27.0       5.0
          28.0       1.4
          29.0      15.2
          39.0       2.8
          41.0      27.7
          42.0       8.0
          43.0      67.5
          44.0       2.1
          53.0       1.2
          54.0       2.3
          55.0      22.2
          56.0      12.5
          57.0     100.0
          58.0       4.7
          67.0       2.1
          68.0       2.4
          69.0      13.5
          70.0      11.3
          71.0      68.6
          72.0       4.4
          81.0       1.1
          82.0       2.7
          83.0       9.4
          84.0       8.0
          85.0      50.4
          86.0       3.7
          96.0       2.0
          97.0       7.2
          98.0       7.6
          99.0      18.0
         100.0       1.4
         111.0       4.0
         112.0       6.9
         113.0      13.4
         114.0       1.2
         125.0       2.2
         126.0       6.3
         127.0      12.1
         128.0       1.4
         139.0       1.1
         140.0       5.5
         141.0       9.5
         142.0       1.2
         154.0       4.6
         155.0       8.9
         156.0       1.3
         168.0       4.4
         169.0       8.1
         170.0       1.4
         182.0       3.1
         183.0       7.4
         184.0       1.4
         196.0       3.2
         197.0       7.0
         198.0       1.3
         210.0       1.7
         211.0       5.8
         212.0       1.2
         224.0       1.8
         225.0       5.4
         226.0       1.1
         239.0       3.0
         253.0       2.3
         282.0      25.0
         283.0       5.4
    

400 MHz in CDCl3

90 MHz in CDCl3


  • 1H NMR 399.65 MHz
    C20 H42 12.6 mg : 0.5 ml CDCl3
    icosane
    ChemicalStructure
        Assign.     Shift(ppm)
    A 1.29 B 1.26 C 0.879

         Hz     ppm     Int.
    

        512.82   1.284     32
        501.71   1.256   1000
        358.64   0.898     47
        351.81   0.881    151
        344.85   0.863     56
    


  • 1H NMR 89.56 MHz
    C20 H42 0.042 g : 0.5 ml CDCl3
    icosane
    ChemicalStructure
        Assign.     Shift(ppm)
    A 1.26 B 0.88

         Hz     ppm     Int.
    

        112.63   1.258   1000
         78.81   0.880     54
    

in CDCl3



KBr disc



nujol mull



4880 A,200 M,powder