You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[3-[3-(3H-1,3-benzoselenazol-2-ylidene)prop-1-enyl]-3,8a-dihydro-2H-1,4-benzoselenazin-4-ium-4-yl]propyl-trimethylsilane;5,6-dichloro-1,3-diethyl-2H-benzimidazole;iodide is the IUPAC name of a molecule. Please give its molecular formula.
user
C35H45Cl2IN4Se2Si
assistant