PP-2 is primarily utilized in the field of biochemistry and pharmacology as a selective inhibitor of Src family kinases. It is extensively used in research to study cellular signaling pathways, particularly those involving tyrosine kinases, which play a crucial role in cell growth, differentiation, and survival. By inhibiting these kinases, PP-2 helps in understanding the mechanisms of various diseases, including cancer, inflammation, and immune disorders. Additionally, it serves as a valuable tool in drug discovery and development, aiding in the identification of potential therapeutic targets for treating kinase-related conditions. Its application in laboratory experiments provides insights into the regulation of cellular processes and the development of targeted therapies.