You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by [4-[[4-(4-ethoxyanilino)phenyl]-[4-[ethyl-[[3-(trioxidanylsulfanyl)phenyl]methyl]amino]-2-methylphenyl]methylidene]-3-methylcyclohexa-2,5-dien-1-ylidene]-ethyl-[(3-sulfophenyl)methyl]azanium ?
user
C47H50N3O7S2+
assistant