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Under IUPAC nomenclature, a molecule named 6-(4-chloroimidazol-1-yl)-13-methyl-18-phenyl-8-oxa-2,13,20,21-tetrazatetracyclo[12.6.1.13,7.015,19]docosa-1(20),3(22),4,6,10,14(21),15(19)-heptaene is given. What is its corresponding molecular formula?
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C27H25ClN6O
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