3-((4,5-Dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo)-N,N,- N-trimethylbenzenaminium chloride 3-((4,5-Dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo)-N,N,N-trimethylanilinium chloride 5-Hydroxy-3-methyl-1-phenyl-4-(3'-trimethylammoniophenylazo)pyrazole, chloride 68391-31-1 Basic yellow 57 Benzenaminium, 3-((4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo)-N,N,- N-trimethyl-, chloride Benzenaminium, 3-((4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo)-N,N,N-trimethyl-, chloride CI 12719 EINECS 269-943-5