You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 1-chloro-2-[2-[2-(2-chloro-6-methylsulfanylphenyl)ethylsulfanyloxysulfanyl]ethyl]-3-methylsulfanylbenzene ?
user
C18H20Cl2OS4
assistant