You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule [3-(4-amino-6,7-dimethoxy-2-methylsulfanylquinazolin-3-ium-3-yl)azetidin-1-yl]-(6-pyridin-1-ium-3-yl-1H-indol-2-yl)methanone ?
user
C28H28N6O3S+2
assistant