2,3-dimethyl-1,4-naphthoquinone(2197-57-1) IR1

Mass

MS-IW-6398          
2,3-dimethyl-1,4-naphthoquinone
C12H10O2            (Mass of molecular ion:    186)

   Source Temperature: 140 °C
   Sample Temperature: 100 °C
   Direct, 75 eV

      39.0       1.1
      50.0       4.0
      51.0       2.8
      53.0       1.4
      63.0       1.3
      64.0       1.3
      74.0       1.6
      75.0       2.4
      76.0      11.8
      77.0       4.8
      89.0       1.1
     104.0      15.2
     105.0       7.1
     115.0       8.8
     116.0       1.4
     127.0       2.5
     128.0       5.4
     129.0      11.3
     130.0       9.8
     131.0       1.3
     132.0       1.0
     141.0       1.1
     143.0       4.0
     157.0      11.0
     158.0      23.2
     159.0       3.1
     171.0       1.1
     172.0       2.4
     185.0       2.7
     186.0     100.0
     187.0      13.1
     188.0       1.4