4-Phenylurazole

Mass

MS-IW-4933          
4-phenyl-1,2,4-triazolidine-3,5-dione
C8H7N3O2            (Mass of molecular ion:    177)

   Source Temperature: 160 °C
   Sample Temperature: 150 °C
   Direct, 75 eV

      18.0       2.0
      27.0       1.1
      28.0       1.3
      29.0       2.2
      30.0       3.7
      37.0       1.3
      38.0       3.1
      39.0       4.2
      41.0       1.4
      50.0       2.5
      51.0       6.4
      52.0       2.4
      58.0       4.6
      62.0       1.2
      63.0       5.4
      64.0      10.8
      65.0       3.9
      74.5       1.4
      77.0      25.8
      78.0       2.3
      90.0       1.2
      91.0      16.1
      92.0      11.8
      93.0       2.8
     119.0      79.9
     120.0      37.5
     121.0       2.9
     146.0       1.1
     177.0     100.0
     178.0      10.1

Assign. Shift(ppm) A 10.5 B 7.65 to 7.28

     Hz     ppm     Int.

    939.44  10.490     38
    674.69   7.534     31
    672.13   7.505     73
    671.56   7.499     81
    670.19   7.484    128
    667.69   7.456   1000
    666.00   7.437    197
    665.00   7.426    233
    663.69   7.411     60
    663.13   7.405     69
    661.81   7.390     31
    660.94   7.380     33
    657.75   7.345     27