You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-[5-(4-chlorophenyl)-4-methyl-10-oxo-2,3,7,11-tetrazatricyclo[7.4.0.02,6]trideca-1(9),3,5,7,12-pentaen-11-yl]-3,4,5-trimethoxybenzamide by IUPAC nomenclature, provide its molecular formula.
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C26H22ClN5O5
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