(4-((4-(Dimethylamino)phenyl)(4-(methylamino)phenyl)methylene)cyclohexa-2,5-dien-1-ylidene)dimethylammonium hydroxide 97337-83-2 EINECS 306-577-8 Methanaminium, N-(4-((4-(dimethylamino)phenyl)(4-(methylamino)phenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-methyl-, hydroxide