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巴豆酸酐

产品名称 巴豆酸酐

CAS号623-68-7

分子式C8H10O3

分子量154.17

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  • Mass

    MS-NW-1226          
    crotonic anhydride
    C8H10O3             (Mass of molecular ion:    154)
    

       Source Temperature: 260 °C
       Sample Temperature: 180 °C
       Reservoir, 75 eV
    

          15.0       1.8
          27.0       1.0
          28.0       2.2
          37.0       1.0
          38.0       2.3
          39.0      19.6
          40.0       3.6
          41.0      30.1
          42.0       1.3
          43.0       5.8
          68.0       2.8
          69.0     100.0
          70.0       4.7
          86.0       2.0
         126.0       4.1
    

90 MHz in CDCl3


  • 1H NMR 89.56 MHz
    C8 H10 O3 0.04 ml : 0.5 ml CDCl3
    crotonic anhydride
    ChemicalStructure
        Assign.     Shift(ppm)
    A 7.106 B 5.871 C 1.914 J(A,B)=15.5HZ J(A,C)=6.9HZ J(B,C)=-1.7HZ

         Hz     ppm     Int.
    

        654.81   7.312     62
        649.56   7.253     75
        647.88   7.235    208
        640.94   7.157    209
        639.31   7.139     84
        634.06   7.080     71
        632.38   7.061    264
        625.50   6.985    268
        618.63   6.908     83
        535.19   5.976     82
        533.56   5.958    273
        531.88   5.939    283
        530.19   5.920    103
        519.69   5.803     63
        518.06   5.785    210
        516.38   5.766    222
        514.75   5.748     82
        175.69   1.962    974
        174.00   1.943   1000
        170.25   1.901     69
        168.75   1.885    964
        167.06   1.866    988
    

in CDCl3



CCl4 solution



liquid film