You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 2-[3-chloro-2-oxo-5-(trifluoromethyl)pyridin-1-yl]-N-[(2R)-3-methylbutan-2-yl]acetamide is given. What is its corresponding molecular formula?
user
C13H16ClF3N2O2
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