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cis-1,2,3,6-Tetrahydrophthalic anhydride

CAS935-79-5

MFC8H8O3

MW152.15

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  • Mass

    MS-NW-1563          
    cis-4-cyclohexene-1,2-dicarboxylic anhydride
    C8H8O3              (Mass of molecular ion:    152)
    

       Source Temperature: 240 °C
       Sample Temperature: 170 °C
       Reservoir, 75 eV
    

          26.0       4.3
          27.0      14.5
          28.0       2.3
          37.0       1.8
          38.0       4.3
          39.0      20.4
          39.5       1.7
          40.0       3.8
          41.0       2.9
          49.0       1.0
          50.0       6.9
          51.0      11.0
          52.0       7.3
          53.0       4.9
          54.0       2.6
          63.0       2.0
          65.0       4.1
          77.0      14.3
          78.0       8.8
          79.0     100.0
          80.0      50.0
          81.0       3.3
         123.0       4.4
         124.0      36.4
         125.0       2.8
    

400 MHz in DMSO-d6


  • 1H NMR 399.65 MHz
    C8 H8 O3 0.042 g : 0.5 ml DMSO-d6
    cis-4-cyclohexene-1,2-dicarboxylic anhydride
    ChemicalStructure
        Assign.     Shift(ppm)
    A 5.951 B 3.519 C *1 2.399 D *1 2.262

         Hz     ppm     Int.
    

       2391.36   5.984     82
       2390.38   5.982     48
       2388.92   5.978     55
       2388.18   5.976     45
       2381.96   5.961    815
       2380.74   5.958    794
       2378.66   5.952   1000
       2376.83   5.948    744
       2376.34   5.947    760
       2375.12   5.944    829
       2369.26   5.929     57
       2367.80   5.925     65
       2367.07   5.923     62
       2365.72   5.920     91
       1419.07   3.551     76
       1417.72   3.548     41
       1412.11   3.534    413
       1410.28   3.529    643
       1409.18   3.527    795
       1406.98   3.521    791
       1406.37   3.520    766
       1404.30   3.514    847
       1403.08   3.511    687
       1401.25   3.507    446
       1396.36   3.494     59
       1394.29   3.489     89
       1391.85   3.483     32
        974.85   2.440     71
        974.12   2.438     79
        972.05   2.433    241
        971.56   2.432    239
        970.21   2.428    325
        967.53   2.421    310
        966.43   2.419    294
        964.48   2.414    183
        961.55   2.406     56
        961.06   2.405     55
        958.01   2.398    252
        956.18   2.393    455
        954.83   2.390    522
        954.35   2.388    488
        952.88   2.385    538
        952.39   2.384    531
        950.93   2.380    423
        950.56   2.379    421
        947.63   2.372    144
        945.31   2.366     51
        943.97   2.362     41
        942.14   2.358     38
        920.78   2.304     33
        919.80   2.302     47
        918.33   2.298     77
        917.72   2.297     69
        916.75   2.294     98
        914.31   2.288    369
        912.72   2.284    379
        910.03   2.278    383
        908.81   2.275    439
        907.96   2.272    328
        906.62   2.269    369
        905.27   2.266    332
        901.49   2.256     78
        899.05   2.250    239
        897.95   2.247    245
        895.75   2.242    258
        894.53   2.239    242
        892.33   2.233    204
        891.24   2.231    232
        890.14   2.228    223
        888.43   2.224     84
        886.23   2.218     62
        884.77   2.214     41
    

KBr disc



nujol mull



4880 A,200 M,powder