You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (Z)-1-[4-[3,5-bis(trifluoromethyl)phenyl]sulfonylpiperazin-1-yl]-2-methylpent-2-en-1-one ?
user
C18H20F6N2O3S
assistant