You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[6-[(2-chlorophenyl)methyl]-1-ethyl-3-methyl-7-oxopyrazolo[4,3-d]pyrimidin-5-yl]sulfanyl-N-phenylacetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H22ClN5O2S
assistant