You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-ethyl-2-[2-(furan-2-yl)-2-hydroxypropyl]-3-[4-(4-methyl-1,3-thiazol-2-yl)butyl]guanidine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H28N4O2S
assistant