S-Methyl-L-cysteine

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

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