CCG-203971 is primarily used in research settings to study its effects on cellular processes, particularly in the context of cancer and fibrosis. It functions as an inhibitor of the serum response factor (SRF) pathway, which is involved in cell proliferation, differentiation, and tissue remodeling. By targeting this pathway, it helps researchers understand the mechanisms underlying diseases characterized by abnormal cell growth or fibrosis. Its application extends to preclinical studies, where it is used to evaluate potential therapeutic strategies for conditions such as pulmonary fibrosis, liver fibrosis, and certain types of cancer. Additionally, it serves as a tool in molecular biology to dissect the role of SRF signaling in various cellular functions.