You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (5aS,6R,7R,9aS)-6-[2-[(4aR,6R,8aS)-6-hydroxy-2,5,5,8a-tetramethyl-3-oxo-4a,6,7,8-tetrahydro-4H-naphthalen-1-yl]ethyl]-2,2,5a,7-tetramethyl-5,6,7,8,9,9a-hexahydro-4H-benzo[b]oxepin-3-one is given. What is its corresponding molecular formula?
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C30H48O4
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