MMSET-IN-1 is primarily used in research settings to study the role of MMSET (Multiple Myeloma SET domain) protein in various biological processes. It serves as a tool compound to inhibit the activity of MMSET, which is often overexpressed in certain cancers, particularly multiple myeloma. By blocking MMSET, researchers can investigate its impact on gene expression, chromatin remodeling, and cancer cell proliferation. This helps in understanding the molecular mechanisms underlying cancer progression and identifying potential therapeutic targets. Additionally, MMSET-IN-1 is utilized in preclinical studies to evaluate its efficacy and specificity in reducing tumor growth, providing insights for the development of targeted cancer therapies.