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Back ChemicalBook Home>CAS DataBase List>79-41-4More Spectrum> Methacrylic acid(79-41-4) IR1

Methacrylic acid(79-41-4) IR1

Product NameMethacrylic acid

CAS79-41-4

Molecular FormulaC4H6O2

Molecular Weight86.09

InChIInChI=1S/C4H6O2/c1-3(2)4(5)6/h1H2,2H3,(H,5,6)

InChIKey CERQOIWHTDAKMF-UHFFFAOYSA-N

SmilesC(O)(=O)C(C)=C


  • Mass

    MS-NW-0658          
    methacrylic acid
    C4H6O2              (Mass of molecular ion:     86)
    

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

          15.0       2.4
          18.0       2.6
          26.0       2.6
          27.0       5.8
          28.0       2.8
          29.0       2.5
          31.0       1.1
          37.0       5.2
          38.0       9.1
          39.0      56.7
          40.0      19.3
          41.0     100.0
          42.0       7.6
          43.0       5.9
          44.0       2.4
          45.0      11.2
          53.0       1.9
          57.0       3.9
          58.0       5.7
          68.0       7.6
          69.0      14.9
          71.0       1.7
          85.0       3.8
          86.0      81.2
          87.0       3.8
    

400 MHz in CDCl3

90 MHz in CDCl3


  • 1H NMR 399.65 MHz
    C4 H6 O2 0.05 ml : 0.5 ml CDCl3
    methacrylic acid
    ChemicalStructure
        Assign.     Shift(ppm)
    A 12.2 B 6.262 C 5.685 D 1.956

         Hz     ppm     Int.
    

       4895.86  12.251     60
       2505.35   6.269    172
       2504.44   6.267    346
       2503.34   6.264    398
       2502.79   6.263    396
       2501.87   6.261    332
       2500.77   6.258    155
       2275.29   5.694    125
       2273.83   5.690    328
       2272.18   5.686    425
       2270.72   5.682    306
       2269.07   5.678    111
        783.04   1.960    963
        782.12   1.958   1000
        781.39   1.956    997
        780.47   1.953    898
    


  • 1H NMR 89.56 MHz
    C4 H6 O2 0.04 ml : 0.5 ml CDCl3
    methacrylic acid
    ChemicalStructure
        Assign.     Shift(ppm)
    A 11.3 B 6.256 C 5.679 D 1.955

         Hz     ppm     Int.
    

       1016.33  11.349    114
        562.51   6.281     85
        561.66   6.272    225
        560.63   6.260    279
        560.03   6.254    271
        559.09   6.243    225
        558.15   6.233     79
        511.84   5.716     64
        510.22   5.697    248
        508.68   5.680    372
        507.06   5.662    247
        505.52   5.645     65
        176.45   1.971    824
        175.43   1.959   1000
        174.91   1.953    963
        173.89   1.942    799
    

in CDCl3



CCl4 solution



liquid film



4880 A,100M,liquid



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