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 4-[(2-amino-3-carboxypropanoyl)amino]-5-[[1-[(1-carboxy-3-methylsulfanylpropyl)amino]-1-oxopropan-2-yl]amino]-5-oxopentanoic acid is given. What is its corresponding molecular formula?
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C17H28N4O9S
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