Lavendustin B is primarily used in biochemical and pharmacological research due to its inhibitory activity against specific protein kinases. It has been studied for its potential to interfere with signal transduction pathways involved in cell growth and inflammation. Researchers use lavendustin B as a tool compound to investigate tyrosine kinase-dependent processes, particularly those related to immune responses and cancer development. Its selectivity makes it valuable in experiments aiming to dissect kinase signaling mechanisms. However, it is not used clinically and remains confined to laboratory settings for mechanistic studies.