You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[2-[[benzyl(hydroxy)amino]methoxyamino]pyridin-4-yl]-1-(3,5-dichlorophenyl)methanesulfonamide by IUPAC nomenclature, provide its molecular formula.
user
C20H20Cl2N4O4S
assistant