You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named oxiran-2-ylmethyl 4-(1-butan-2-yloxyethenyl)-7-oxabicyclo[4.1.0]heptane-3-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C16H24O5
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