You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[2-[4-[[2,4-bis(methylsulfonyl)phenyl]diazenyl]-1-hydroxynaphthalene-2-carbonyl]hydrazinyl]benzenesulfonic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H22N4O9S3
assistant