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返回ChemicalBook首页>CAS数据库列表>5222-73-1更多图谱> 3,4-二甲氧基-3-环丁烯-1,2-二酮(5222-73-1)质谱(MS)

5222-73-1

3,4-二甲氧基-3-环丁烯-1,2-二酮(5222-73-1)质谱(MS)

分子式:C6H6O4

分子量: 142.11

InChI:InChI=1S/C6H6O4/c1-9-5-3(7)4(8)6(5)10-2/h1-2H3

InChIKey: SZBNZTGCAMLMJY-UHFFFAOYSA-N

Smiles:C1(=O)C(OC)=C(OC)C1=O

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    Mass

    MS-IW-9146          
    3,4-dimethoxy-3-cyclobutene-1,2-dione
    C6H6O4              (Mass of molecular ion:    142)
    

       Source Temperature: 220 °C
       Sample Temperature: 150 °C
       Reservoir, 75 eV
    

          12.0       1.2
          14.0       4.3
          15.0     100.0
          16.0       1.5
          18.0       1.2
          26.0       2.4
          27.0       9.0
          28.0      32.1
          29.0       9.0
          30.0       1.9
          31.0       1.5
          40.0       8.1
          41.0       2.4
          42.0       1.4
          43.0      67.8
          44.0       3.0
          45.0       1.6
          52.0       1.6
          53.0       1.4
          56.0       9.6
          68.0      11.4
          69.0       1.6
          83.0       3.2
          86.0      57.5
          87.0       2.8
          99.0      14.8
         114.0      31.5
         115.0       1.9
         142.0      77.7
         143.0       5.7
    

parameter in DMSO-d6

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    1H NMR 300 MHz
    C6 H6 O4 0.039 g : 0.5 ml DMSO-d6
    3,4-dimethoxy-3-cyclobutene-1,2-dione
    ChemicalStructure
        Parameter     ppm  Hz
    D(A) 4.290

         Hz     ppm     Int.
    

       1287.00   4.290   1000
    

in DMSO-d6

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KBr disc

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nujol mull

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