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网站主页CAS数据库列表 79-31-2更多图谱异丁酸(79-31-2)红外图谱(IR1)

异丁酸

产品名称 异丁酸

CAS号79-31-2

分子式C4H8O2

分子量88.11

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  • Mass

    MS-NW-2559          
    isobutyric acid
    C4H8O2              (Mass of molecular ion:     88)
    

       Source Temperature: 280 °C
       Sample Temperature: 170 °C
       Reservoir, 75 eV
    

          15.0       1.5
          26.0       2.1
          27.0      24.5
          28.0       2.1
          29.0       5.1
          38.0       1.4
          39.0       9.2
          40.0       1.6
          41.0      39.2
          42.0       9.9
          43.0     100.0
          44.0       3.6
          45.0       7.7
          55.0       3.9
          60.0       1.6
          71.0       2.0
          73.0      25.9
          88.0       8.0
    

90 MHz in CDCl3


  • 1H NMR 89.56 MHz
    C4 H8 O2 0.05 ml : 0.5 ml CDCl3
    isobutyric acid
    ChemicalStructure
        Assign.     Shift(ppm)
    A 11.88 B 2.58 C 1.204

         Hz     ppm     Int.
    

       1064.10  11.882    101
        246.01   2.747     24
        239.51   2.675     40
        238.83   2.667     54
        232.08   2.592     74
        225.67   2.520     48
        224.90   2.512     67
        218.07   2.435     37
        111.00   1.240   1000
        108.86   1.216     44
        106.56   1.190     28
        104.08   1.163    865
    

in CDCl3



liquid film