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-[(4-but-2-ynoxyphenyl)sulfonylamino]-3-(7-methyl-1H-indol-3-yl)propanoic acid is given. What is its corresponding molecular formula?
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C22H22N2O5S
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