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 2-[1-[1-(1-benzofuran-2-yl)ethenoxy]ethenyl]-5-methyl-4-propyl-1H-imidazole is given. What is its corresponding molecular formula?
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C19H20N2O2
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