You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (1S,5R)-3-[(3,4-dihydroxyphenyl)-hydroxymethylidene]-6,6-dimethyl-5,7-bis(3-methylbut-2-enyl)-1-[(2S)-5-methyl-2-prop-1-en-2-ylhex-4-enyl]bicyclo[3.3.1]nonane-2,4,9-trione by IUPAC nomenclature, provide its molecular formula.
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C38H50O6
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