You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named N-[2-fluoro-5-(trifluoromethyl)phenyl]-4,5-dimethyl-5,6-dihydro-4H-1,3-thiazin-2-amine is given. What is its corresponding molecular formula?
user
C13H14F4N2S
assistant