You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(3-ethoxy-4-methylpentyl)-3-[[3-(2-methoxyethylsulfamoyl)phenyl]methyl]-2-methylguanidine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H36N4O4S
assistant