You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(1,1-dioxo-1,4-thiazepane-4-carbonyl)-N'-hydroxy-3-methylcyclobutane-1-carboximidamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C12H21N3O4S
assistant