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2,3-Dimethoxy-5-methyl-p-benzoquinone

CAS605-94-7

MFC9H10O4

MW182.17

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  • Mass

    MS-IW-0221          
    2,3-dimethoxy-5-methyl-p-benzoquinone
    C9H10O4             (Mass of molecular ion:    182)
    

       Source Temperature: 260 °C
       Sample Temperature: 160 °C
       Reservoir, 75 eV
    

          15.0      19.3
          18.0       1.3
          26.0       1.0
          27.0       6.1
          28.0       6.0
          29.0       3.9
          37.0       1.7
          38.0       4.1
          39.0      27.0
          40.0      25.1
          41.0       5.2
          43.0      10.6
          50.0       2.3
          51.0       3.2
          52.0       4.8
          53.0      10.1
          54.0       1.1
          55.0       2.9
          56.0       1.2
          65.0       2.6
          66.0       3.0
          67.0       7.7
          68.0      26.5
          69.0      29.7
          70.0       1.2
          71.0       2.1
          77.0       1.1
          79.0       2.2
          80.0       4.8
          81.0       8.2
          82.0       1.1
          83.0      46.7
          84.0       2.7
          86.0       2.4
          93.0       2.7
          94.0       2.1
          95.0       3.7
          96.0      11.4
          97.0       1.5
          99.0       1.4
         107.0       3.3
         108.0       7.9
         109.0       5.3
         110.0       1.2
         111.0      21.0
         112.0       1.4
         121.0       6.8
         122.0       3.9
         123.0       2.5
         124.0       2.4
         125.0       4.5
         126.0       2.3
         135.0       2.5
         136.0      28.5
         137.0     100.0
         138.0       8.5
         139.0      25.2
         140.0       2.1
         151.0       4.2
         152.0       6.3
         153.0      18.5
         154.0       7.3
         164.0       3.5
         165.0       1.0
         166.0       1.1
         167.0      46.0
         168.0       4.3
         169.0       5.0
         181.0       2.3
         182.0      88.6
         183.0      11.9
         184.0       6.9
    

400 MHz in CDCl3


  • 1H NMR 399.65 MHz
    C9 H10 O4 0.033 g : 0.5 ml CDCl3
    2,3-dimethoxy-5-methyl-p-benzoquinone
    ChemicalStructure
        Assign.     Shift(ppm)
    A 6.442 B *1 4.025 C *1 4.000 D 2.041

         Hz     ppm     Int.
    

       2577.27   6.449     46
       2575.56   6.445    149
       2573.97   6.441    143
       2572.27   6.437     48
       1611.45   4.033     39
       1609.01   4.027   1000
       1603.52   4.013     20
       1598.88   4.001    968
        819.58   2.051     22
        816.77   2.044    473
        815.06   2.040    491
    

in CDCl3



KBr disc



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