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-ethyl-2-(2-hydroxy-2-thiophen-2-ylpropyl)-3-(2-morpholin-4-yl-2-thiophen-2-ylethyl)guanidine;hydroiodide is given. What is its corresponding molecular formula?
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C20H31IN4O2S2
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