紫花前胡素

Mass

MS-IW-7270          
(S)-8,8-dimethyl-2-oxo-7,8-dihydro-2H,6H-pyrano(3,2-g)chromen-7-yl 3-methyl-2-butenoate
C19H20O5            (Mass of molecular ion:    328)

   Source Temperature: 170 °C
   Sample Temperature: 150 °C
   Direct, 75 eV

      17.0       1.3
      18.0       7.3
      27.0       1.2
      29.0       3.3
      39.0       2.3
      41.0       1.8
      43.0       2.5
      51.0       1.1
      53.0       1.4
      55.0      14.0
      57.0       1.6
      69.0       2.1
      77.0       1.8
      82.0       1.9
      83.0      52.3
      84.0       3.0
      91.0       1.0
     131.0       1.5
     147.0       1.4
     159.0       1.0
     175.0       3.7
     176.0       2.2
     185.0       2.3
     187.0       3.1
     203.0       1.2
     213.0     100.0
     214.0      14.6
     215.0       1.7
     227.0       1.2
     228.0      44.0
     229.0       8.8
     230.0       1.1
     328.0       9.3
     329.0       2.1
     330.0       1.2