You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 3-[4-(4-fluoro-3-methylsulfonylphenyl)-2-propan-2-ylpiperazin-1-yl]-6-(trifluoromethyl)pyridazine using the IUPAC nomenclature.
user
C19H22F4N4O2S
assistant