4-Aminobenzamide is primarily utilized in biochemical research as an inhibitor of poly(ADP-ribose) polymerase (PARP) enzymes. It plays a significant role in studying DNA repair mechanisms, particularly in the context of cellular responses to DNA damage. By inhibiting PARP, it helps researchers understand the pathways involved in genomic stability and the potential therapeutic effects of PARP inhibition in cancer treatment. Additionally, it is employed in experimental studies to explore its impact on apoptosis and cellular stress responses, contributing to advancements in oncology and molecular biology research.