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-[(4-chlorophenyl)-(5-phenyl-1,3,4-oxadiazol-2-yl)methyl]-1-phenylmethanesulfonamide by IUPAC nomenclature, provide its molecular formula.
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C22H18ClN3O3S
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