You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[4-(3,5-dimethylpiperidin-1-yl)butyl]-3-[2-(4,5-dimethyl-1,3-thiazol-2-yl)ethyl]-2-methylguanidine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H37N5S
assistant