You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3,5-dichloro-N-[[4-[5-(hydroxymethyl)furan-2-yl]phenyl]carbamothioyl]-4-methoxybenzamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H16Cl2N2O4S
assistant