(4-((2-Chlorophenyl)(4-(dimethylamino)phenyl)methylene)cyclohexa-2,5-dien-1-ylidene)dimethylammonium nitrate 29636-46-2 3521-06-0 EINECS 249-738-7 Methanaminium, N-(4-((2-chlorophenyl)(4-(dimethylamino)phenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-methyl-, nitrate