You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named (Z)-2-cyano-3-(4-methylsulfonylpiperazin-1-yl)-N-[2-(trifluoromethyl)phenyl]prop-2-enamide is given. What is its corresponding molecular formula?
user
C16H17F3N4O3S
assistant