You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[2-[[N'-[(2,4-dimethyl-1,3-thiazol-5-yl)methyl]-N-ethylcarbamimidoyl]amino]ethyl]-2-methylpropanamide into its molecular formula.
user
C15H27N5OS
assistant