You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[3-[[N'-methyl-N-(2-methyl-2-methylsulfanylpropyl)carbamimidoyl]amino]propyl]thiophene-2-carboxamide;hydroiodide into molecular formula.
user
C15H27IN4OS2
assistant