You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule [4-[4-[4-[4-[4-(2-phenylethynyl)benzoyl]phenoxy]phenyl]phenoxy]phenyl]-[4-(2-phenylethynyl)phenyl]methanone into molecular formula.
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C54H34O4
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