You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-amino-N-[4-[4-[3-(1,3-dioxobenzo[de]isoquinolin-2-yl)propylamino]phenyl]phenyl]ethanesulfonamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C29H28N4O4S
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