(4-((4-(Diethylamino)phenyl)(4-((4-ethoxyphenyl)amino)-1-naphthyl)methylene)-2,5-cyclohexadien-1-ylidene)diethylammonium chloride 37279-80-4 73309-46-3 EINECS 277-374-9 Ethanaminium, N-(4-((4-(diethylamino)phenyl)(4-((4-ethoxyphenyl)amino)-1-naphthalenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, chloride