You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 4-O-[4-[4-[2-[4-[2-(4-ethynylphenyl)ethynyl]phenyl]ethynyl]-4-[4-(4-octoxycarbonylcyclohexanecarbonyl)oxybenzoyl]oxycyclohexyl]phenyl] 1-O-(8-prop-2-enoyloxyoctyl) cyclohexane-1,4-dicarboxylate by IUPAC nomenclature, provide its molecular formula.
user
C72H82O12
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