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-[[6-amino-1-[(1-carboxy-2-hydroxyethyl)amino]-1-oxohexan-2-yl]amino]-4-[(2-amino-3-hydroxybutanoyl)amino]-5-oxopentanoic acid is given. What is its corresponding molecular formula?
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C18H33N5O9
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