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-(cyclopropylmethyl)-3-[1-[(3,5-dimethoxyphenyl)methyl]pyrrolidin-3-yl]-2-methylguanidine by IUPAC nomenclature, provide its molecular formula.
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C19H30N4O2
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