1,3-二甲基-2,4-(1H,3H)-喹唑啉二酮

Mass

MS-IW-7334          
1,3-dimethyl-2,4(1H,3H)-quinazolinedione
C10H10N2O2          (Mass of molecular ion:    190)

   Source Temperature: 150 °C
   Sample Temperature: 130 °C
   Direct, 75 eV

      28.0       1.5
      39.0       1.7
      50.0       2.0
      51.0       3.8
      51.5       1.2
      52.0       1.1
      63.0       3.2
      64.0       3.2
      66.5       1.1
      75.0       1.0
      76.0       2.0
      77.0      10.3
      78.0       9.3
      79.0       1.1
      90.0       2.5
      92.0       3.4
      95.0       1.3
     104.0      32.6
     105.0      57.3
     106.0       5.0
     132.0       5.9
     133.0      28.1
     134.0       3.7
     161.0       2.1
     162.0       7.8
     175.0       1.7
     176.0       1.0
     190.0     100.0
     191.0      11.9
     192.0       1.0

Parameter ppm Hz D(A) 7.98 D(B) 7.23 D(C) 7.71 D(D) 7.34 J(A,B) 7.7 J(A,C) 1.7 J(A,D) 0.0 J(B,C) 7.2 J(B,D) 1.2 J(C,D) 8.2 D(E) 4.55 D(F) 3.27 KHALIFE-EL-SALEH,M. ET AL. BULL.SOC.CHIM.FR. 1974, 1667

     Hz     ppm     Int.

   2398.77   7.996     86
   2397.11   7.990     89
   2391.08   7.970     92
   2389.42   7.965     96
   2321.77   7.739     41
   2320.11   7.734     40
   2314.56   7.715     55
   2313.51   7.712     70
   2311.94   7.706     55
   2306.39   7.688     53
   2304.73   7.682     51
   2206.57   7.355    100
   2205.39   7.351    107
   2198.36   7.328     88
   2197.18   7.324     91
   2176.86   7.256     55
   2175.72   7.252     52
   2169.30   7.231     85
   2168.42   7.228     82
   2162.00   7.207     46
   2160.82   7.203     44
   1365.02   4.550   1000
    981.02   3.270   1000