You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance [2-bromo-4-[(E)-2-cyano-3-(4-methyl-2-nitroanilino)-3-oxoprop-1-enyl]phenyl] 4-acetamidobenzenesulfonate .
user
C25H19BrN4O7S
assistant