You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[4-[4-butyl-6-[5-(trifluoromethyl)-1H-pyrazol-4-yl]pyridin-3-yl]-5-ethenyl-1H-pyrazol-3-yl]-2-(4-methylpiperazin-1-yl)acetamide by IUPAC nomenclature, provide its molecular formula.
user
C25H31F3N8O
assistant