5,7-Dihydroxy-1,4-naphthalenedione

Mass

MS2003-01561WA      
5,7-dihydroxy-1,4-naphthoquinone
C10H6O4             (Mass of molecular ion:    190)

   Source Temperature: 250 °C
   Sample Temperature:  20 °C
   Direct, 70 eV

      18.0       1.9
      28.0       1.2
      38.0       1.2
      39.0       1.6
      50.0       3.0
      51.0       6.5
      52.0       2.0
      53.0       3.7
      54.0       2.0
      55.0       1.0
      61.0       1.5
      62.0       3.0
      63.0       3.2
      65.0       1.2
      66.0       1.5
      67.0       3.8
      69.0      12.6
      74.0       1.2
      77.0       2.9
      78.0       4.0
      79.0       2.1
      82.0       1.5
     105.0       4.7
     106.0       1.7
     108.0      18.0
     109.0       1.3
     121.0       1.0
     133.0       1.8
     134.0      29.0
     135.0       3.2
     136.0      28.9
     137.0       3.0
     161.0       3.4
     162.0      20.5
     163.0       2.7
     189.0       7.3
     190.0     100.0
     191.0      11.3
     192.0       6.1