2,5-Dimethyl-8-((4-methylphenyl)amino)-9-oxo-9H-naphth(3,2,1-kl)acridinium methyl sulphate 72906-37-7 9H-Naphth(3,2,1-kl)acridinium, 2,5-dimethyl-8-((4-methylphenyl)amino)-9-oxo-, methyl sulfate EINECS 276-999-4