3H,7H-pyrano[2',3':6,7]benzofuro[2,3-b][1]benzopyran-7-one, 5,8,10-trihydroxy-9-(3-hydroxy-3-methylbutyl)-3,3-dimethyl-11-(3-methyl-2-butenyl)- 5,7,5'-Trihydroxy-6-(3-hydroxy-3-methylbutyl)-8-(gamma,gamma-dimethylallyl)-[6'''',6''''-dimethylpyrano-(2'''',3'''':4',3')]-coumaronochromone 5,8,10-Trihydroxy-9-(3-hydroxy-3-methyl-butyl)-3,3-dimethyl-11-(3-methyl-but-2-enyl)-3H-4,12,13-trioxa-dibenzo[a,h]fluoren-7-one 5,8,10-trihydroxy-9-(3-hydroxy-3-methylbutyl)-3,3-dimethyl-11-(3-methylbut-2-en-1-yl)-3H,7H-chromeno[6',5':4,5]furo[2,3-b]chromen-7-one (non-preferred name) Formosanatin A InChI=1/C30H32O8/c1-14(2)7-8-16-22(32)15(9-11-29(3,4)35)23(33)21-24(34)20-18-13-19(31)26-17(10-12-30(5,6)38-26)25(18)36-28(20)37-27(16)21/h7,10,12-13,31-33,35H,8-9,11H2,1-6H