You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[4-[[2-methoxy-5-methyl-4-(2-sulfooxyethylsulfonyl)phenyl]hydrazinylidene]-3-methyl-5-oxopyrazolidin-1-yl]benzenesulfonic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H24N4O11S3
assistant