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527-72-0

2-Thiophenecarboxylic acid

Product Name 2-Thiophenecarboxylic acid

CAS527-72-0

MFC5H4O2S

MW128.15

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  • 527-72-0_ms
    Mass

    MS-NW-1396          
    2-thiophenecarboxylic acid
    C5H4O2S             (Mass of molecular ion:    128)
    

       Source Temperature: 260 °C
       Sample Temperature: 180 °C
       Reservoir, 75 eV
    

          18.0       1.5
          26.0       1.2
          28.0       1.5
          37.0       3.9
          38.0       6.2
          39.0      38.7
          40.0       1.6
          41.0       1.0
          44.0       2.4
          45.0      15.5
          49.0       1.6
          50.0       4.2
          51.0       1.1
          53.0       1.8
          57.0       9.5
          58.0       6.1
          69.0       1.7
          81.0       3.4
          82.0       3.9
          83.0      10.2
          84.0       1.7
         100.0       2.0
         111.0     100.0
         112.0       6.2
         113.0       4.8
         128.0      86.3
         129.0       5.5
         130.0       4.4
    

parameter in acetone-d6

  • 527-72-0_1hnmr

    1H NMR 300 MHz
    C5 H4 O2 S in acetone-d6
    2-thiophenecarboxylic acid
    ChemicalStructure
        Parameter     ppm  Hz
    D(A) 7.80 D(B) 7.15 D(C) 7.78 J(A,B) 3.67 J(A,C) 1.16 J(B,C) 5.03 D(D) 9.56 FRINGUELLI,F. ET AL. ACTA CHEM.SCAND. B 28, 175 (1974)

         Hz     ppm     Int.
    

       2868.01   9.560   1000
       2342.49   7.808    230
       2341.36   7.805    326
       2338.82   7.796    264
       2337.62   7.792    425
       2337.14   7.790    419
       2335.92   7.786    243
       2332.05   7.773    329
       2330.92   7.770    244
       2149.29   7.164    266
       2145.62   7.152    274
       2144.28   7.148    270
       2140.62   7.135    243
    

KBr disc

  • 527-72-0_ir1_2

nujol mull

  • 527-72-0_ir2

  • 527-72-0_raman