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网站主页CAS数据库列表 4949-44-4更多图谱丙酰乙酸乙酯(4949-44-4)红外图谱(IR1)

丙酰乙酸乙酯

产品名称 丙酰乙酸乙酯

CAS号4949-44-4

分子式C7H12O3

分子量144.17

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  • Mass

    MS-NW-9306          
    ethyl 3-oxovalerate
    C7H12O3             (Mass of molecular ion:    144)
    

       Source Temperature: 240 °C
       Sample Temperature: 150 °C
       Reservoir, 75 eV
    

          15.0       3.0
          26.0       2.7
          27.0      18.9
          28.0       7.4
          29.0      76.2
          30.0       2.4
          31.0       9.1
          39.0       2.0
          41.0       4.4
          42.0      12.2
          43.0      46.0
          44.0       2.4
          45.0       7.4
          46.0       1.7
          53.0       1.1
          55.0       2.9
          56.0       6.0
          57.0     100.0
          58.0       4.6
          60.0       5.5
          61.0       2.2
          69.0      12.8
          70.0       3.0
          71.0       1.0
          72.0       3.7
          73.0       2.1
          87.0      14.4
          88.0       3.8
          98.0       8.4
          99.0      14.2
         101.0       1.0
         115.0      21.3
         116.0       3.3
         144.0      18.9
         145.0       2.2
    

400 MHz in CDCl3


  • 1H NMR 399.65 MHz
    C7 H12 O3 0.05 ml : 0.5 ml CDCl3
    ethyl 3-oxovalerate
    ChemicalStructure
        Assign.     Shift(ppm)
    A 4.195 B 3.455 C 2.583 D 1.282 E 1.084

         Hz     ppm     Int.
    

       1687.13   4.222    184
       1685.67   4.218     40
       1682.98   4.212     35
       1679.93   4.204    501
       1678.47   4.200     87
       1675.90   4.194     35
       1672.73   4.186    515
       1671.39   4.183     86
       1665.65   4.168    192
       1664.31   4.165     31
       1380.86   3.456   1000
       1043.46   2.611    160
       1036.13   2.593    438
       1028.81   2.575    456
       1021.61   2.557    172
        519.53   1.300    549
        512.82   1.284    863
        512.45   1.283    976
        507.08   1.269     59
        505.25   1.265    564
        439.45   1.100    539
        436.77   1.093     44
        436.28   1.092     43
        432.25   1.082    965
        424.93   1.064    544
    

in CDCl3



liquid film