You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 1-[3-[(4-chlorophenyl)methyl]-2-iminobenzimidazol-1-yl]-3,3-dimethylbutan-2-ol is given. What is its corresponding molecular formula?
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C20H24ClN3O
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