You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 1-[2-(methanesulfonamido)-2-methylpropyl]-2-methyl-3-[1-(5-methylthiophen-2-yl)propan-2-yl]guanidine .
user
C15H28N4O2S2
assistant