Synonyms: AC1L3DNK;1-ethyl-2-[(1-ethyl-6-methylquinolin-1-ium-2-yl)methylidene]benzo[e][1,3]benzothiazole; 4-methylbenzenesulfonate;Naphtho(1,2-d)thiazolium, 1-ethyl-2-((1-ethyl-6-methyl-2(1H)-quinolinylidene)methyl)-, 4-methylbenzenesulfonate (1:1);Naphtho(1,2-d)thiazolium, 1-ethyl-2-((1-ethyl-6-methyl-2(1H)-quinolinylidene)methyl)-, salt with 4-methylbenzenesulfonic acid (1:1)