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-3-[1-(3-fluorophenyl)piperidin-4-yl]-2-[3-(oxan-4-yloxy)propyl]guanidine is given. What is its corresponding molecular formula?
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C22H35FN4O2
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