You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3-ethyl-3,4-dihydro-2H-quinoxalin-1-yl) 6,8-bis(benzylsulfanyl)octanoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C32H40N2O2S2
assistant