You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[[4-[1-[4-[2-(oxiran-2-yl)ethyl]cyclohexyl]-1-[4-[2-[4-(oxiran-2-ylmethoxy)phenyl]propan-2-yl]phenyl]ethyl]phenoxy]methyl]oxirane by IUPAC nomenclature, provide its molecular formula.
user
C39H48O5
assistant