乳清酸

Mass

MS-NW-0423          
2,6-dioxo-1,2,3,6-tetrahydro-4-pyrimidinecarboxylic acid
C5H4N2O4 H2O        (Mass of molecular ion:    156)

   Source Temperature: 190 °C
   Sample Temperature: 190 °C
   Direct, 75 eV

      18.0       1.5
      27.0       1.1
      28.0       4.7
      29.0       1.3
      38.0       2.0
      39.0       6.1
      40.0      21.3
      41.0       4.3
      42.0       2.2
      43.0       2.2
      44.0       4.1
      45.0       3.5
      53.0       2.7
      55.0       1.0
      67.0       6.2
      68.0     100.0
      69.0      16.9
      70.0       2.6
      85.0       1.3
     105.0       1.2
     112.0       2.5
     113.0       9.5
     114.0       1.0
     139.0       1.0
     156.0      64.3
     157.0       4.3

Assign. Shift(ppm) A *1 11.32 B *1 10.84 C *1 6.9 D 6.042 PEAK C INCLUDES H2O.

     Hz     ppm     Int.

   1013.51  11.317    313
    970.96  10.842    394
    620.96   6.934    321
    541.24   6.044   1000