You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 2-amino-6-benzyl-5,5-dioxo-4-[4-(trifluoromethyl)phenyl]-4H-pyrano[3,2-c][2,1]benzothiazine-3-carbonitrile is given. What is its corresponding molecular formula?
user
C26H18F3N3O3S
assistant