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 (E)-but-2-enedioic acid;1-methyl-1-[2-oxo-2-[(2R,3R,4R,5R)-3,4,5-trihydroxy-2-(hydroxymethyl)piperidin-1-yl]ethyl]guanidine is given. What is its corresponding molecular formula?
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C14H24N4O9
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