70208-51-4 Dipotassium p-(4,5-dihydro-4-(5-(5-hydroxy-3-methyl-1-(4-sulphonatophenyl)-1H-pyrazol-4-yl)penta-2,4-dienylidene)-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulphonate EINECS 274-382-4