You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2E)-2-[(2Z,4E)-3-bromo-5-[5-chloro-3,3-dimethyl-7-(3-sulfopropyl)pyrrolo[2,3-b]pyridin-7-ium-2-yl]penta-2,4-dienylidene]-3,3-dimethyl-1-(3-sulfonatopropyl)indole-5-sulfonate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C30H34BrClN3O9S3-
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