You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [4-[6-acetyloxy-5-methoxy-2,2-dimethyl-10-(3-methylbut-2-enyl)-8-oxopyrano[3,2-g]chromen-7-yl]phenyl] acetate by IUPAC nomenclature, provide its molecular formula.
user
C30H30O8
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