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-[2-(dimethylamino)ethyl]-1-[[(2R)-1-ethylpyrrolidin-2-yl]methyl]-3-(2-methylphenyl)urea is given. What is its corresponding molecular formula?
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C19H32N4O
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