You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-[2-[1-(furan-2-ylsulfonyl)piperidin-3-yl]-2-oxoethyl]-1-[2-(1-methylsulfonylpiperidin-4-yl)ethyl]benzo[cd]indol-2-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H35N3O7S2
assistant