You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 4-[(2Z)-2-[(2E)-2-[[5,6-dimethoxy-3-(3-sulfopropyl)-1,3-benzothiazol-3-ium-2-yl]methylidene]butylidene]-5-phenyl-1,3-benzoxazol-3-yl]butane-2-sulfonic acid by IUPAC nomenclature, provide its molecular formula.
user
C34H39N2O9S3+
assistant