4-(p-Dimethylaminobenzylidene)-3-methyl-1-(4-potassiosulfophenyl)-2-pyrazolin-5-one

potassium 4-[4-[[4-(dimethylamino)phenyl]methylene]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulphonate

Potassium,4-[4-[[4-(dimethylammino)phenyl]methylene]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulfonate

Potassium, 4-[4-[[4-(dimethylammino)phenyl]methylene]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulfonate