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Under IUPAC nomenclature, a molecule named 12-[3-[6-[3-([1]benzofuro[2,3-a]carbazol-12-yl)phenyl]-4-[4-([1]benzofuro[2,3-a]carbazol-12-yl)phenyl]quinazolin-2-yl]phenyl]-[1]benzofuro[2,3-a]carbazole is given. What is its corresponding molecular formula?
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C80H45N5O3
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