Used primarily as an intermediate in the synthesis of ranitidine, a histamine H2-receptor antagonist. Plays a key role in pharmaceutical manufacturing processes where controlled formation of the ranitidine molecule is required. Its sodium salt form enhances solubility and stability during synthesis, facilitating easier handling and improved reaction efficiency in aqueous or polar environments. Commonly employed in quality control and analytical testing to ensure purity and consistency in final drug products. Also utilized in research settings to study metabolic pathways and degradation products related to ranitidine-based medications.