1H-Pyrazole-3-carboxylic acid, 4-(3-(3-carboxy-5-hydroxy-1-(4-sulfophenyl)-1H-pyrazol-4-yl)-2-propenylidene)-4,5-dihydro-5-oxo-1-(4-sulfophenyl)-,dipotassium salt 1H-Pyrazole-3-carboxylic acid, 4-(3-(3-carboxy-5-hydroxy-1-(4-sulfophenyl)-1H-pyrazol-4-yl)allylidene)-4,5-dihydro-5-oxo-1-(4-sulfophenyl)-, dipotassium salt 66096-14-8