Synonyms: AC1O5B5U;66225-56-7;Benzenemethanaminium, N-(4-((2,5-disulfophenyl)(4-(ethyl(phenylmethyl)amino)phenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, inner salt, sodium salt;Benzenemethanaminium, N-(4-((2,5-disulfophenyl)(4-(ethyl(phenylmethyl)amino)phenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, inner salt, sodium salt (1:1);sodium 2-[[4-[benzyl(ethyl)amino]phenyl]-[4-[benzyl(ethyl)azaniumylidene]cyclohexa-2,5-dien-1-ylidene]methyl]benzene-1,4-disulfonate