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Himic anhydride

Product Name Himic anhydride

CAS826-62-0

MFC9H8O3

MW164.16

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  • Mass

    MS-NW-1729          
    5-norbornene-2,3-dicarboxylic anhydride
    C9H8O3              (Mass of molecular ion:    164)
    

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

          18.0       1.2
          25.0       1.0
          26.0       9.3
          27.0       4.4
          28.0       4.2
          32.0       1.0
          37.0       1.9
          38.0       4.4
          39.0      17.8
          40.0       8.8
          41.0       1.1
          45.0       2.5
          45.5       1.0
          50.0       2.8
          51.0       4.4
          52.0       1.4
          53.0       1.1
          54.0       6.3
          55.0       4.2
          61.0       1.2
          62.0       2.3
          63.0       4.7
          64.0       1.3
          65.0      15.1
          66.0     100.0
          67.0       5.6
          77.0       1.3
          78.0       1.1
          91.0      27.5
          92.0      13.1
          93.0       1.0
          98.0       1.6
          99.0       2.8
         119.0       3.0
         120.0       4.9
         164.0       2.2
    

90 MHz in CDCl3


  • 1H NMR 89.56 MHz
    C9 H8 O3 0.044 g : 0.5 ml CDCl3
    5-norbornene-2,3-dicarboxylic anhydride
    ChemicalStructure
        Assign.     Shift(ppm)
    A 6.31 B 3.59 C 3.52 D 1.77 E 1.59

         Hz     ppm     Int.
    

        566.50   6.326    465
        564.94   6.308    733
        563.69   6.294    508
        323.94   3.618    205
        320.63   3.581    601
        319.38   3.567   1000
        317.13   3.541    411
        315.50   3.523    547
        313.94   3.506    448
        165.13   1.844    125
        163.81   1.830     83
        156.06   1.743    303
        150.38   1.680     22
        144.88   1.618    296
        135.94   1.518    115
    

in CDCl3



KBr disc



nujol mull



4880 A,200 M,powder