You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[6,7-dimethoxy-1-[3-(trifluoromethyl)phenyl]-3,4-dihydro-1H-isoquinolin-2-yl]-[4-(trifluoromethylsulfanyl)phenyl]methanone is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H21F6NO3S
assistant