You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-[2-(1,1-dimethyl-3-propylbenzo[e]indol-3-ium-2-yl)ethenyl]-5-[2-(1,1-dimethyl-3-propylbenzo[e]indol-2-ylidene)ethylidene]cyclopenten-1-yl]-N-phenylaniline The above is the IUPAC name of a molecule. Write its molecular formula.
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