You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-(2-fluorophenoxy)ethyl]-4-hydroxy-4-(5-methylpyridin-2-yl)piperidine-1-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H24FN3O3
assistant