3-(4'-Hydroxyphenyl)-5-methoxy-6-(3,3-dimethylallyl)-2,2-dimethylchromene-(5,6:8,7)-3-(propyl-2-one)-4H-1-benzo-2,3-dihydropyran-2,4-dione 3-(4-Hydroxy-phenyl)-5-methoxy-8,8-dimethyl-6-(3-methyl-but-2-enyl)-3-(2-oxo-propyl)-8H-pyrano[2,3-f]chromene-2,4-dione 3-(4-hydroxyphenyl)-5-methoxy-8,8-dimethyl-6-(3-methylbut-2-en-1-yl)-3-(2-oxopropyl)-2H,8H-pyrano[2,3-f]chromene-2,4(3H)-dione InChI=1/C29H30O7/c1-16(2)7-12-20-23-21(13-14-28(4,5)36-23)25-22(24(20)34-6)26(32)29(15-17(3)30,27(33)35-25)18-8-10-19(31)11-9-18/h7-11,13-14,31H,12,15H2,1-6H phenol, 4-[(E)-2-[3,5-dimethoxy-4-(3-methyl-2-butenyl)phenyl]ethenyl]-