1,2-Dimethyl-3-((2-methyl-1H-indol-3-yl)azo)-1H-indazolium chloride 1H-Indazolium, 1,2-dimethyl-3-((2-methyl-1H-indol-3-yl)azo)-, chloride 73287-58-8 EINECS 277-358-1