You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-bicyclo[2.2.1]heptanylmethyl-[4-[bis[4-(diethylamino)phenyl]methylidene]naphthalen-1-ylidene]azanium;[4-[bis[4-(diethylamino)phenyl]methylidene]naphthalen-1-ylidene]-ethylazanium;dichloride by IUPAC nomenclature, provide its molecular formula.
user
C72H88Cl2N6
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