You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
sodium;(4R)-4-(3,3-dimethylbutyl)-2-[7-(methanesulfonamido)-1,1-dioxo-4H-1lambda6,2,4-benzothiadiazin-3-yl]-4-methyl-3-oxonaphthalen-1-olate is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H28N3NaO6S2
assistant