You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 4-[4-[2-[(5-chloro-1-cyclopropylpyrazol-4-yl)amino]-6-methylquinazolin-7-yl]piperazin-1-yl]oxolan-3-ol by IUPAC nomenclature, provide its molecular formula.
user
C23H28ClN7O2
assistant