You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[1-[2-[1-[4-methyl-N-[1-(2-methylphenyl)ethenyl]anilino]ethenyl]hydrazinyl]ethenyl]-3-pent-1-en-2-ylaniline is the IUPAC name of a molecule. Please give its molecular formula.
user
C31H36N4
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