You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2E)-2-[(2E,4E,6E)-7-[3,3-dimethyl-5-[methyl-[4-oxo-4-[(5-sulfamoyl-1,3,4-thiadiazol-2-yl)amino]butyl]sulfamoyl]-1-(3-sulfopropyl)indol-1-ium-2-yl]hepta-2,4,6-trienylidene]-3,3-dimethyl-1-(3-sulfopropyl)indole-5-sulfonic acid by IUPAC nomenclature, provide its molecular formula.
user
C40H52N7O14S6+
assistant