You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (1aS,4aR,7R)-7-hydroxy-6,6-dimethyl-2-oxo-3-pentyl-1a,4a,7,8-tetrahydrooxireno[2,3-e]chromene-4-carbaldehyde by IUPAC nomenclature, provide its molecular formula.
user
C17H24O5
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