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 5-[[[ethylamino-[4-(oxolan-2-ylmethoxy)piperidin-1-yl]methylidene]amino]methyl]furan-2-carboxamide;hydroiodide is given. What is its corresponding molecular formula?
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C19H31IN4O4
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