1,3-二甲基脲

Mass

MS-NW-4955          
1,3-dimethylurea
C3H8N2O             (Mass of molecular ion:     88)

   Source Temperature: 250 °C
   Sample Temperature: 180 °C
   Reservoir, 75 eV

      14.0       1.0
      15.0      22.5
      18.0       4.1
      26.0       1.0
      27.0       9.2
      28.0      37.9
      29.0       9.5
      30.0     100.0
      31.0      42.5
      32.0       2.0
      41.0       1.0
      42.0       3.7
      43.0       3.2
      44.0       5.4
      55.0       1.8
      56.0       9.3
      57.0      22.8
      58.0      44.5
      59.0       3.3
      69.0       2.5
      70.0       3.1
      88.0      49.5
      89.0       2.3

Parameter ppm Hz D(A) 5.69 D(B) 2.54 STILBS,P. & FORSEN,S. ORG.MAGN.RESON. 8, 384 (1976) J(1)(A,N-15):88.7HZ. J(3)(A,B):4.7HZ. J(2)(N-15,N-15):5.3HZ. J(2)(B,N-15):0.7HZ.

     Hz     ppm     Int.

   1707.01   5.690    333
    762.01   2.540   1000