You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[1-(2-chlorophenyl)-5-propan-2-ylpyrazol-4-yl]-3-(2-hydroxyethoxy)piperidine-1-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H27ClN4O3
assistant