You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(4-chloro-3-nitrophenyl)-N-[5-[(4-chloro-3-nitrophenyl)methylideneamino]naphthalen-1-yl]methanimine is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H14Cl2N4O4
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