4-甲基七叶亭

Mass

MS-NW-9614          
6,7-dihydroxy-4-methylcoumarin
C10H8O4             (Mass of molecular ion:    192)

   Source Temperature: 220 °C
   Sample Temperature: 180 °C
   Direct, 75 eV

      17.0       1.0
      18.0       5.0
      28.0       1.2
      38.0       1.0
      39.0       6.0
      41.0       1.2
      42.0       1.2
      43.0       1.6
      45.0       1.2
      50.0       1.5
      51.0       2.5
      53.0       3.1
      55.0       1.1
      59.0       2.7
      62.0       1.2
      63.0       3.0
      64.0       1.3
      65.0       3.8
      66.0       2.2
      67.0       1.8
      69.0       6.7
      77.0       3.3
      78.0       1.0
      79.0       2.3
      81.5       1.1
      82.0       4.7
      89.0       4.2
      90.0       3.1
      93.0       2.2
      94.0       1.2
      96.0       1.1
     107.0       1.9
     117.0       1.0
     118.0       2.3
     121.0       1.0
     123.0       1.0
     135.0       3.6
     136.0       6.7
     147.0       2.1
     163.0      42.4
     164.0      62.0
     165.0       6.3
     191.0       1.6
     192.0     100.0
     193.0      13.2
     194.0       1.6