Amberlite XAD-4 is widely used as a polymeric adsorbent in various industries due to its high surface area and porosity. It is commonly employed in environmental applications for the removal of organic pollutants from wastewater, such as phenols, pesticides, and dyes. In the pharmaceutical industry, it is utilized for the purification and separation of bioactive compounds, including antibiotics and steroids. Additionally, it is used in the food industry for decolorization and purification processes, such as removing impurities from sugar syrups or fruit juices. Amberlite XAD-4 also finds application in analytical chemistry as a solid-phase extraction medium for isolating and concentrating target analytes from complex matrices. Its hydrophobic nature makes it particularly effective for adsorbing non-polar and moderately polar compounds.