4,7-DIHYDROXYPTERIDINE

Mass

MS-IW-6906          
4,7(1H,8H)-pteridinedione
C6H4N4O2            (Mass of molecular ion:    164)

   Source Temperature: 200 °C
   Sample Temperature: 260 °C
   Direct, 75 eV

      17.0       2.2
      18.0      11.2
      26.0       3.2
      27.0      22.6
      28.0      52.6
      29.0       8.8
      38.0       4.4
      39.0       6.6
      40.0       2.4
      41.0       1.9
      42.0       1.4
      43.0       3.1
      44.0       5.8
      51.0       1.2
      52.0       1.3
      53.0       4.8
      54.0      11.4
      55.0       2.3
      64.0       1.0
      65.0       2.6
      66.0       4.5
      67.0       7.4
      68.0       4.4
      69.0       2.2
      70.0       3.2
      71.0       1.4
      80.0       1.3
      81.0      14.9
      82.0       3.3
      93.0       1.8
      94.0       1.6
      96.0       1.4
     108.0      13.8
     109.0      10.8
     135.0       2.4
     136.0      38.4
     137.0       4.6
     164.0     100.0
     165.0       8.5
     166.0       2.1