T338C Src-IN-1 is primarily used in research settings as a potent and selective inhibitor of Src kinase, a protein involved in various cellular processes such as cell proliferation, differentiation, and survival. Its application is significant in studying cancer biology, as Src kinase is often overactive in many types of cancer, contributing to tumor growth and metastasis. Researchers utilize this compound to investigate the role of Src kinase in cancer cell signaling pathways and to evaluate its potential as a therapeutic target. Additionally, T338C Src-IN-1 is employed in preclinical studies to assess the efficacy of Src inhibition in reducing tumor progression and improving treatment outcomes. Its use aids in the development of targeted therapies for cancers where Src kinase plays a critical role.