You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 2-[2-[(3E)-4,8-dimethylnona-3,7-dienyl]-3,5-dihydroxy-2-methyl-7-oxo-4,9-dihydro-3H-pyrano[2,3-e]isoindol-8-yl]heptanedioic acid by IUPAC nomenclature, provide its molecular formula.
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C30H41NO8
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