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B-丁内酯

产品名称 B-丁内酯

CAS号3068-88-0

分子式C4H6O2

分子量86.09

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  • Mass

    MS-IW-5642          
    beta-butyrolactone
    C4H6O2              (Mass of molecular ion:     86)
    

       Source Temperature: 220 °C
       Sample Temperature: 150 °C
       Reservoir, 75 eV
    

          13.0       1.1
          14.0       7.1
          15.0      11.5
          18.0       3.0
          25.0       1.3
          26.0       6.0
          27.0      14.9
          28.0       5.5
          29.0      13.9
          36.0       1.9
          37.0       5.7
          38.0       8.6
          39.0      33.0
          40.0      13.7
          41.0      38.1
          42.0     100.0
          43.0      80.5
          44.0      30.6
          45.0       2.6
          60.0       1.9
          68.0      10.5
          69.0       1.3
          71.0       4.3
          86.0       1.0
          87.0       1.0
    

90 MHz in CDCl3


  • 1H NMR 89.56 MHz
    C4 H6 O2 0.05 ml : 0.5 ml CDCl3
    beta-butyrolactone
    ChemicalStructure
        Assign.     Shift(ppm)
    A 4.704 B *1 3.560 C *1 3.083 D 1.563 J(A,B)=5.6HZ J(A,C)=4.3HZ J(A,D)=6.1HZ J(B,C)=-16.3HZ

         Hz     ppm     Int.
    

        429.69   4.798     58
        425.38   4.750     72
        423.94   4.734     88
        419.63   4.686     95
        417.88   4.666     75
        413.56   4.618     75
        332.31   3.711    138
        326.63   3.648    117
        316.00   3.529    258
        310.38   3.466    235
        283.81   3.169    224
        279.50   3.121    214
        267.50   2.987    115
        263.19   2.939    109
        143.00   1.597   1000
        140.56   1.570     62
        136.88   1.529    945
        134.56   1.503     39
    

in CDCl3



liquid film



4880 A,200 M,liquid