You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [4-[2-(6-methylpyridin-2-yl)ethyl]phenyl] 4-(2-pyridin-3-ylethyl)piperazine-1-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C26H30N4O2
assistant