You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named N-(4-hydroxy-3-methylsulfanylbutan-2-yl)-2-(6-methyl-1-benzofuran-3-yl)acetamide is given. What is its corresponding molecular formula?
user
C16H21NO3S
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