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网站主页CAS数据库列表 20913-25-1更多图谱2-甲基环丙烷-1-羧酸乙酯(20913-25-1)核磁图(1HNMR)

2-甲基环丙烷-1-羧酸乙酯

产品名称 2-甲基环丙烷-1-羧酸乙酯

CAS号20913-25-1

分子式C7H12O2

分子量128.17


  • Mass

    MS-NW-9558          
    ethyl 2-methylcyclopropanecarboxylate
    C7H12O2             (Mass of molecular ion:    128)
    

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

          26.0       1.8
          27.0      18.7
          28.0       5.5
          29.0      47.6
          30.0       1.2
          39.0      13.3
          40.0       1.8
          41.0       8.3
          42.0       3.0
          43.0       9.6
          45.0      13.9
          51.0       1.4
          53.0       8.2
          54.0      13.9
          55.0      81.1
          56.0      16.6
          57.0       4.4
          58.0       7.6
          60.0       1.4
          69.0       3.0
          71.0       2.0
          73.0       9.4
          81.0       3.6
          82.0      16.2
          83.0      94.3
          84.0       5.9
          85.0       4.3
          99.0       8.3
         100.0     100.0
         101.0      32.8
         102.0       2.1
         127.0       1.6
         128.0       7.3
         129.0       4.2
    

400 MHz in CDCl3


  • 1H NMR 399.65 MHz
    C7 H12 O2 0.05 ml : 0.5 ml CDCl3
    ethyl 2-methylcyclopropanecarboxylate
    ChemicalStructure
        Assign.     Shift(ppm)
    A 4.110 B 1.37 C 1.32 D 1.255 E 1.16 F 1.108 G 0.658 ASSIGNED BY C-H COSY

         Hz     ppm     Int.
    

       1653.56   4.138    180
       1646.36   4.120    495
       1639.28   4.102    524
       1632.08   4.084    209
        560.79   1.404     36
        556.76   1.394     50
        554.57   1.388     53
        552.12   1.382     51
        550.78   1.379     68
        548.10   1.372     71
        546.14   1.367     60
        544.92   1.364     51
        544.56   1.363     56
        542.11   1.357     82
        540.41   1.353     37
        539.79   1.351     43
        538.70   1.348     30
        536.38   1.343     58
        535.77   1.341     67
        534.67   1.338     97
        530.03   1.327    157
        526.37   1.318    116
        521.85   1.306    144
        517.82   1.296     82
        514.40   1.288     35
        508.79   1.274    620
        501.59   1.256   1000
        494.51   1.238    585
        476.32   1.192     82
        470.09   1.177     60
        469.12   1.174    116
        464.97   1.164    127
        460.33   1.152    176
        456.30   1.142    116
        455.69   1.141     99
        451.66   1.131     88
        445.68   1.116    703
        439.58   1.100    647
        271.97   0.681     73
        267.94   0.671     74
        265.63   0.665     78
        263.92   0.661     77
        261.72   0.655     76
        259.89   0.651     73
        257.57   0.645     69
        253.54   0.635     63
    

in CDCl3



liquid film



4880 A,200 M,liquid