英文名称
[4-[bis[4-(diethylamino)phenyl]methylidene]naphthalen-1-ylidene]-ethylazanium;4-[[4-(diethylamino)phenyl]-(4-ethyliminonaphthalen-1-ylidene)methyl]-N,N-diethylaniline;[4-[[4-(diethylazaniumyl)phenyl]-(4-ethylazaniumylidenenaphthalen-1-ylidene)methyl]phenyl]-diethylazanium;methane