You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2Z)-1-(3,3-diethoxypropyl)-2-[(2Z,4E)-5-[1-(3,3-diethoxypropyl)-3,3-dimethyl-5-sulfoindol-1-ium-2-yl]penta-2,4-dienylidene]-3-(6-ethoxy-6-oxohexyl)-3-methylindole-5-sulfonate is the IUPAC name of a molecule. Please give its molecular formula.
user
C46H66N2O12S2
assistant