You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-(1,1-dioxothiolan-3-yl)-1-(6-methoxypyridin-3-yl)-N-methylethane-1,2-diamine by IUPAC nomenclature, provide its molecular formula.
user
C13H21N3O3S
assistant