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5,6-二氢-2,3-二甲酸酐

产品名称 5,6-二氢-2,3-二甲酸酐

CAS号10489-75-5

分子式C6H4O3S2

分子量188.22

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  • Mass

    MS-KW-0423          
    5,6-dihydro-1,4-dithiin-2,3-dicarboxylic anhydride 
    C6H4O3S2            (Mass of molecular ion:    188)
    

       Source Temperature: 170 °C
       Sample Temperature: 130 °C
       Direct, 75 eV
    

          26.0       1.1
          27.0       2.6
          28.0       2.0
          44.0       7.1
          45.0       7.3
          46.0       1.2
          55.0       3.8
          56.0       4.0
          57.0       1.6
          58.0       3.0
          59.0       5.3
          60.0      22.4
          62.0       1.0
          71.0       3.4
          72.0       2.0
          84.0       3.8
          88.0      43.0
          89.0       1.8
          90.0       4.0
         116.0      30.4
         117.0       1.6
         118.0       2.8
         144.0       9.7
         188.0     100.0
         189.0       8.3
         190.0       9.9
    

400 MHz in CDCl3


  • 1H NMR 399.65 MHz
    C6H4O3S2 0.038 g : 0.5 ml CDCl3
    5,6-dihydro-1,4-dithiin-2,3-dicarboxylic anhydride
    ChemicalStructure
        Assign.     Shift(ppm)
    A 3.394

         Hz     ppm     Int.
    

       1356.69   3.394   1000
    

in CDCl3



KBr disk



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