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 N-[[5-chloro-2-[(2,4-dichlorophenyl)methoxy]phenyl]methyl]-3-(1-methyltetrazol-5-yl)sulfanylpropan-1-amine;hydrochloride is given. What is its corresponding molecular formula?
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C19H21Cl4N5OS
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