You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methane;4-[4-[(4-methylphenyl)methyl]piperidin-1-yl]-1-[4-[4-nitro-3-(trifluoromethyl)anilino]piperidin-1-yl]butan-1-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C30H41F3N4O3
assistant