This chemical is widely used as a reagent in analytical chemistry, particularly for the spectrophotometric determination of iron. It forms a highly sensitive and stable complex with iron(II), allowing for precise quantification of iron content in various samples, including water, biological fluids, and industrial materials. Its high selectivity and sensitivity make it a valuable tool in environmental monitoring, clinical diagnostics, and quality control processes in industries such as pharmaceuticals and food production. Additionally, its water-soluble nature ensures ease of use in aqueous solutions, enhancing its applicability in laboratory settings.