You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-ethyl-3-[2-(methanesulfonamido)ethyl]-2-[[2-[(2-methylpropan-2-yl)oxy]phenyl]methyl]guanidine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H30N4O3S
assistant