You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 8-[6-[2-(4-cyanophenyl)ethynyl]naphthalen-2-yl]oxyoctyl 2,5-bis[[4-(6-prop-2-enoyloxyhexoxy)benzoyl]oxy]benzoate by IUPAC nomenclature, provide its molecular formula.
user
C66H67NO13
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