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-[(3,5-diethyl-1-methylpyrazol-4-yl)methyl]-3-(3,4-dimethoxyphenyl)-2-methylguanidine by IUPAC nomenclature, provide its molecular formula.
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C19H29N5O2
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