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 2-amino-3-[4-[[2-[[2-[[2-[(5-cyanothiophene-2-carbonyl)amino]acetyl]amino]acetyl]amino]acetyl]amino]phenyl]propanoic acid is given. What is its corresponding molecular formula?
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C21H22N6O6S
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