You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-chloro-N-[1-(6-cyclopropylpyrimidin-4-yl)piperidin-4-yl]-N-methylpyrimidin-2-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H21ClN6
assistant