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-(4-butoxyphenyl)-3-[2-(3,5-dimethyl-1-pyridin-2-ylpyrazol-4-yl)ethyl]urea by IUPAC nomenclature, provide its molecular formula.
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C23H29N5O2
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