You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
chloromethylidene(dimethyl)azanium;N-[(E)-1-(2-chlorophenyl)ethylideneamino]methanamine;3-(2-chlorophenyl)-1-methylpyrazole-4-carbaldehyde;chloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H27Cl4N5O
assistant