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-[(1S)-1-(4-chlorophenyl)-2-methoxyethyl]-3-[(2-methylpyrimidin-4-yl)methyl]urea is given. What is its corresponding molecular formula?
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C16H19ClN4O2
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