You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[2-(cyclohexen-1-yl)ethyl]-3-[[2-(dimethylsulfamoyl)phenyl]methyl]-2-methylguanidine;hydroiodide is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H31IN4O2S
assistant