You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl-[[1-(2-chloroethyl)-2,2-dioxo-3-propan-2-yl-4H-2lambda6,1,3-benzothiadiazin-6-yl]methoxy]-dimethylsilane is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H33ClN2O3SSi
assistant