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 6-amino-2-[[2-[[2-[(2-amino-4-methylpentanoyl)amino]-3-sulfanylpropanoyl]amino]-4-carboxybutanoyl]amino]hexanoic acid is given. What is its corresponding molecular formula?
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C20H37N5O7S
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