You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 1-[2-[3-[4-[(4-chlorophenyl)methyl]piperazin-1-yl]-2-hydroxypropoxy]phenyl]ethanone;dihydrochloride by IUPAC nomenclature, provide its molecular formula.
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C22H29Cl3N2O3
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