1,5-Dimethyl-3-((2-methyl-1H-indol-3-yl)azo)-2-phenyl-1H-pyrazolium methyl sulphate 128644-13-3 1H-Pyrazolium, 1,5-dimethyl-3-((2-methyl-1H-indol-3-yl)azo)-2-phenyl-, methyl sulfate 29508-48-3 EINECS 249-671-3 Pyrazolium, 2,3-dimethyl-5-((2-methylindol-3-yl)azo)-1-phenyl-, methyl sulfate