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 [4-(2-phenylethyl)piperidin-1-yl]-[6-(1H-pyrrol-2-yl)pyridin-3-yl]methanone;hydrochloride is given. What is its corresponding molecular formula?
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C23H26ClN3O
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