You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-methyl-N-[3-[[N'-methyl-N-(4-methylsulfanylbutyl)carbamimidoyl]amino]propyl]furan-2-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H28N4O2S
assistant