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1187-84-4

S-Methyl-L-cysteine

Product Name S-Methyl-L-cysteine

CAS1187-84-4

MFC4H9NO2S

MW135.18

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  • 1187-84-4_ms
    Mass

    MS-NW-4973          
    S-methyl-L-cysteine
    C4H9NO2S            (Mass of molecular ion:    135)
    

       Source Temperature: 200 °C
       Sample Temperature: 120 °C
       Direct, 75 eV
    

          14.0       1.1
          15.0       7.8
          17.0       1.1
          18.0       4.9
          19.0       1.3
          27.0       8.9
          28.0      31.6
          29.0       2.6
          30.0      12.0
          35.0      11.1
          40.0       1.5
          41.0       5.4
          42.0      20.0
          43.0      36.1
          44.0       9.0
          45.0      10.8
          46.0      10.5
          47.0      11.8
          48.0       3.7
          49.0       1.0
          56.0       1.6
          57.0       1.5
          58.0       1.5
          59.0       1.6
          60.0       1.2
          61.0     100.0
          62.0      71.6
          63.0       6.5
          64.0       3.4
          70.0       1.0
          73.0       2.4
          74.0      58.3
          75.0       8.5
          87.0      11.7
          88.0       1.3
          89.0       1.2
          90.0      37.7
          91.0       1.8
          92.0       1.7
         103.0       1.1
         118.0       3.9
         135.0      30.2
         136.0       2.0
         137.0       1.6
    

400 MHz in D2O

  • 1187-84-4_1hnmr

    1H NMR 399.65 MHz
    C4 H9 N O2 S 0.035 g : 0.5 ml D2O
    S-methyl-L-cysteine
    ChemicalStructure
        Assign.     Shift(ppm)
    A 3.947 B *1 3.098 C *1 3.013 D 2.162 THE SOLVENT PEAK SUPPRESSED.

         Hz     ppm     Int.
    

       1583.50   3.963     71
       1579.22   3.952     78
       1575.81   3.943     85
       1571.53   3.933     75
       1250.49   3.129     42
       1246.22   3.119     46
       1235.72   3.093     95
       1231.45   3.082     90
       1212.77   3.035     90
       1205.08   3.016     86
       1197.88   2.998     42
       1190.19   2.979     42
        864.26   2.163   1000
    

in D2O

  • 1187-84-4_13cnmr

KBr disc

  • 1187-84-4_ir1_2

nujol mull

  • 1187-84-4_ir2

  • 1187-84-4_raman