You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[2-[2-[2-[2-[2-[2-[(2-methylpropan-2-yl)oxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol;sulfuric acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C18H40O12S
assistant