You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by (5-chloro-3-methyl-1-phenylpyrazol-4-yl)-[4-(4-ethoxyphenyl)sulfonylpiperazin-1-yl]methanone ?
user
C23H25ClN4O4S
assistant