You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[7-[4-(3-ethylhex-5-en-2-ylamino)butylsulfanyl]-3-oxo-1H-isoindol-2-yl]piperidine-2,6-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H35N3O3S
assistant