IY-81149 sodium is primarily used in research and development within the pharmaceutical industry, particularly in the study of gastrointestinal disorders. It acts as a potent proton pump inhibitor, which makes it valuable for investigating the mechanisms and treatments of acid-related conditions such as gastroesophageal reflux disease (GERD), peptic ulcers, and Zollinger-Ellison syndrome. Its ability to suppress gastric acid secretion allows researchers to explore its therapeutic potential and efficacy in preclinical models. Additionally, it serves as a reference compound in pharmacological studies to compare the effects of other acid-suppressing agents. Its application extends to understanding the biochemical pathways involved in gastric acid production and the development of novel treatments for acid-related diseases.