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网站主页CAS数据库列表 79-91-4更多图谱氧化松節油酸(79-91-4)红外图谱(IR1)

氧化松節油酸

产品名称 氧化松節油酸

CAS号79-91-4

分子式C7H10O4

分子量158.15

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  • Mass

    MS-NW-9372          
    2,2-dimethyl-5-oxotetrahydro-3-furoic acid
    C7H10O4             (Mass of molecular ion:    158)
    

       Source Temperature: 180 °C
       Sample Temperature: 120 °C
       Direct, 75 eV
    

          15.0       2.1
          18.0       3.0
          26.0       1.8
          27.0       8.8
          28.0       3.2
          29.0       2.9
          31.0       2.8
          39.0       6.2
          40.0       1.2
          41.0      17.4
          42.0       3.2
          43.0     100.0
          44.0       4.6
          45.0       3.8
          53.0       3.2
          54.0       1.3
          55.0      50.8
          56.0      10.4
          57.0       1.5
          59.0      46.7
          60.0       1.8
          67.0       2.0
          68.0       2.2
          69.0      13.1
          70.0       1.1
          71.0       3.9
          72.0      12.6
          73.0       2.8
          81.0       1.3
          82.0       2.4
          96.0       1.2
          97.0       4.4
          99.0       2.7
         100.0      19.1
         101.0       3.8
         114.0      11.2
         115.0      17.1
         116.0       1.0
         125.0       1.9
         141.0       2.2
         143.0      53.8
         144.0       3.7
         158.0       1.3
         159.0       4.6
    

400 MHz in DMSO-d6


  • 1H NMR 399.65 MHz
    C7 H10 O4 0.037 g : 0.5 ml DMSO-d6
    2,2-dimethyl-5-oxotetrahydro-3-furoic acid
    ChemicalStructure
        Assign.     Shift(ppm)
    A 12.9 B 3.231 C *1 2.834 D *1 2.725 E *2 1.502 F *2 1.282

         Hz     ppm     Int.
    

       5166.57  12.928     41
       1300.30   3.254    129
       1291.69   3.233    281
       1283.26   3.211    156
       1148.27   2.874    119
       1139.84   2.853    104
       1130.69   2.830    214
       1122.26   2.809    200
       1099.37   2.751    213
       1090.76   2.730    203
       1081.78   2.707    109
       1072.99   2.685     99
        600.42   1.503   1000
        512.50   1.283    976
    

in DMSO-d6



KBr disc



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