Tyrphostin AG30 is primarily used in research settings to study and inhibit tyrosine kinase activity, which plays a critical role in cell signaling pathways. It is often employed in experiments to understand the mechanisms of cell growth, differentiation, and apoptosis, particularly in cancer research. By blocking specific tyrosine kinases, it helps researchers investigate the effects of disrupted signaling on tumor progression and metastasis. Additionally, it is utilized in studies related to inflammation and immune responses, as tyrosine kinases are involved in these processes. Its application provides valuable insights into potential therapeutic targets for diseases involving abnormal kinase activity.