Beta-lactamase-IN-1 is primarily used in research and development settings to study and combat antibiotic resistance. It functions as an inhibitor of beta-lactamase enzymes, which are produced by bacteria to break down beta-lactam antibiotics like penicillins and cephalosporins. By inhibiting these enzymes, it helps restore the effectiveness of these antibiotics against resistant bacterial strains. This makes it a valuable tool in the development of new therapeutic strategies to treat infections caused by multidrug-resistant bacteria. Additionally, it is utilized in biochemical assays to better understand the mechanisms of beta-lactamase activity and to screen for potential new inhibitors.