6-hydroxy-3,7-dimethoxy-8-(3-methylbut-2-enyl)-60,60-dimethyl-50- hydroxy-40,50-dihydropyrano(20,30:1,2)xanthone
6-hydroxy-3,7-dimethoxy-8-(3-methylbut-2-enyl)-60,60-dimethyl-50- hydroxy-40,50-dihydropyrano(20,30:1,2)xanthone