You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[(Z)-3-[4-[2-(5-chloro-2-methoxyanilino)-2-oxoethyl]sulfanylanilino]-1-(2-nitrophenyl)-3-oxoprop-1-en-2-yl]benzamide by IUPAC nomenclature, provide its molecular formula.
user
C31H25ClN4O6S
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