You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[5-(hydroxymethyl)-4-(4-iodophenyl)-6-propan-2-ylpyrimidin-2-yl]-N-methylmethanesulfonamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H20IN3O3S
assistant