You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[2-[[2-(2-bromo-4-ethylphenoxy)acetyl]carbamothioyl]hydrazinyl]-N-(2,4-dimethylphenyl)-4-oxobutanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H27BrN4O4S
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