10489-75-5

2,3-Dihydro-1,4-dithiino[2,3-c]furan-5,7-dione(10489-75-5) MS

Product Name2,3-Dihydro-1,4-dithiino[2,3-c]furan-5,7-dione

CAS 10489-75-5

Molecular FormulaC6H4O3S2

Molecular Weight188.22

InChIInChI=1S/C6H4O3S2/c7-5-3-4(6(8)9-5)11-2-1-10-3/h1-2H2

InChIKey MXSSHXZXAAXCOW-UHFFFAOYSA-N

SmilesO1C(=O)C2SCCSC=2C1=O

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2,3-Dihydro-1,4-dithiino[2,3-c]furan-5,7-dione(10489-75-5) MS
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

2,3-Dihydro-1,4-dithiino[2,3-c]furan-5,7-dione(10489-75-5) MS

¹H NMR	399.65 MHz
C₆H₄O₃S₂	0.038 g : 0.5 ml CDCl₃
5,6-dihydro-1,4-dithiin-2,3-dicarboxylic anhydride

    Assign.     Shift(ppm)

     A           3.394

     Hz     ppm     Int.

   1356.69   3.394   1000

in CDCl3

KBr disk

Nujol

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