Sodium 1-(4-sulfophenyl)-5-pyrazolone-3-carboxylate52126-51-934 % similar 5-Amino-2-chlorobenzenesulfonic acid88-43-734 % similar Yellow 2G6359-98-433 % similar 1,3-Dimethyl-5-pyrazolone2749-59-933 % similar 2,5-Bis[(1,3-dioxobutyl)amino]benzenesulfonic acid70185-87-432 % similar 2-Chloro-5-nitrobenzenesulfonic acid96-73-131 % similar