You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (2S,3S,10bS)-3-(4-methoxybenzoyl)-2-(4-methylsulfanylphenyl)-2,3,4,10b-tetrahydropyrrolo[2,1-a]isoquinolin-4-ium-1,1-dicarbonitrile .
user
C29H24N3O2S+
assistant