You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named methyl 5-[(3-chloro-4-methylphenyl)carbamoyl]-2-(furan-2-carbonylamino)-4-methylthiophene-3-carboxylate is given. What is its corresponding molecular formula?
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C20H17ClN2O5S
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