2-THIOURACIL-5-CARBOXYLIC ACID

Mass

MS-NW-7134          
4-oxo-2-thioxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxylic acid
C5H4N2O3S           (Mass of molecular ion:    172)

   Source Temperature: 200 °C
   Sample Temperature: 180 °C
   Direct, 75 eV

      14.0       1.1
      17.0       2.0
      18.0       8.6
      25.0       1.2
      26.0       1.7
      27.0       4.2
      28.0      27.5
      29.0       2.2
      32.0       5.9
      33.0       1.4
      38.0       3.2
      39.0       5.5
      40.0      13.6
      41.0      11.6
      42.0      15.7
      43.0       2.5
      44.0      13.9
      45.0       8.0
      46.0       1.5
      51.0       3.0
      52.0       5.6
      53.0      21.4
      54.0       1.3
      55.0       2.7
      57.0       2.0
      58.0       3.9
      59.0      18.9
      60.0      12.6
      61.0       1.7
      64.0       4.0
      67.0       6.3
      68.0      20.3
      69.0      21.0
      70.0       8.4
      71.0       1.9
      72.0       2.4
      73.0       1.2
      76.0       1.0
      83.0       1.1
      84.0       1.8
      85.0      33.0
      86.0       8.6
      87.0       1.2
      94.0       1.2
      95.0       1.9
      96.0       4.2
      98.0       1.7
     100.0       6.6
     101.0       1.0
     110.0       1.7
     112.0       1.3
     113.0       1.1
     114.0       3.9
     126.0       2.8
     127.0       1.4
     128.0      49.9
     129.0       3.3
     130.0       2.9
     144.0       1.2
     154.0       5.5
     155.0       2.0
     172.0     100.0
     173.0       7.5
     174.0       5.6

Assign. Shift(ppm) A 13.0 B 8.054

     Hz     ppm     Int.

   5221.16  13.065     22
   3223.00   8.065     23
   3218.94   8.055   1000