You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[3-[4-(4-fluorophenyl)piperazin-1-yl]-6-oxopyridazin-1-yl]-N-[(4-methoxyphenyl)methyl]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H26FN5O3
assistant