You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name sodium;4-[2-[7-[1,1-dimethyl-3-(4-sulfooxybutyl)benzo[e]indol-2-ylidene]hepta-1,3,5-trienyl]-1,1-dimethylbenzo[e]indol-3-ium-3-yl]butyl sulfate into its molecular formula.
user
C43H48N2NaO8S2+
assistant