You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[4-(furan-2-yl)-4-hydroxybutan-2-yl]-3-[(4-methyl-2-methylsulfanylphenyl)methyl]urea into its molecular formula.
user
C18H24N2O3S
assistant