Zincon,for the photometric determination of copper and zinc;2-(-2-((-(2-Hydroxy-5-sulfophenyl)diazenyl)(phenyl)methylene)hydrazinyl)benzoic acid;2-CARBOXY-2'-HYDROXY-5'-SULFOFORMAZYLBENZENE;Zincon sodium salt hydrate;2-Carboxy-2'-hydroxy-5'-sulfo-formazylbenzol;Zincon hydrate sodium salt;ZinconGr;
