You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule N-[(1Z,4R,5S)-5-(4-chlorophenyl)-1-[(4-chlorophenyl)methylidene]-3-oxopyrazolidin-1-ium-4-yl]-4-fluorobenzamide .
user
C23H17Cl2FN3O2+
assistant