Xanthine Sodium Salt is widely used in biochemical research as a substrate for studying the activity of enzymes like xanthine oxidase, which plays a role in purine metabolism. It is also employed in the synthesis of various pharmaceuticals, particularly those targeting conditions like asthma and chronic obstructive pulmonary disease (COPD), due to its bronchodilator properties. Additionally, it serves as a key intermediate in the production of caffeine and other methylxanthines, which are important in the food and beverage industry. Its role in enhancing athletic performance and reducing fatigue has also been explored in sports science.