You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[4-[3-(3-ethyl-5,5-dimethyl-6,7-dihydro-4H-2-benzothiophen-1-yl)-3-oxopropyl]-2,6-dimethylphenoxy]ethyl methanesulfonate is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H36O5S2
assistant