(Z)-2-Methyl-2-butenoic acid (9S)-9,10-dihydro-8,8-dimethyl-10β-[(3-methyl-1-oxo-2-butenyl)oxy]-2-oxo-2H,8H-benzo[1,2-b:3,4-b']dipyran-9-yl ester

Mass

MS-IW-7280          
8,8-dimethyl-2-oxo-2,8,9,10-tetrahydropyrano(2,3-f)chromene-9,10-diyl 9-((Z)-2-methyl-2-butenoate) 10-(3-methyl-2-butenoate)
C24H26O7            (Mass of molecular ion:    426)

   Source Temperature: 170 °C
   Sample Temperature: 160 °C
   Direct, 75 eV

      17.0       3.6
      18.0      18.7
      27.0       3.2
      28.0       3.6
      29.0       5.0
      39.0       7.5
      41.0       4.1
      43.0       2.5
      44.0       2.4
      51.0       1.4
      53.0       4.0
      54.0       5.1
      55.0      31.5
      56.0       2.2
      57.0       1.0
      69.0       1.7
      71.0       1.2
      82.0      11.6
      83.0     100.0
      84.0       6.4
      85.0       3.1
     100.0      10.3
     101.0       1.0
     185.0       1.8
     189.0       1.0
     201.0       2.9
     213.0      11.7
     214.0       1.8
     215.0       1.1
     216.0       1.3
     227.0       2.6
     228.0       2.4
     229.0      22.3
     230.0       3.5
     243.0       3.4
     244.0       8.9
     245.0       1.7
     311.0      11.1
     312.0       2.2
     326.0      12.6
     327.0       4.8