You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 4-[2-(2-methoxyphenyl)-1-piperazin-1-ylethyl]-N-pyridin-2-ylcyclohexane-1-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C25H34N4O2
assistant