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-[[3-chloro-4-[(2-chloro-4-fluorophenyl)methoxy]-5-methoxyphenyl]methyl]-2-methylpropan-1-amine by IUPAC nomenclature, provide its molecular formula.
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C19H22Cl2FNO2
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