You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-[2-[4-(4-fluorophenyl)piperazin-1-yl]-2-(furan-2-yl)ethyl]-3-(4-methylphenyl)urea by IUPAC nomenclature, provide its molecular formula.
user
C24H27FN4O2
assistant