CX-4945 sodium salt is primarily used in research and development as a potent and selective inhibitor of casein kinase 2 (CK2). It plays a significant role in studying CK2-dependent pathways in various biological processes, including cell proliferation, apoptosis, and DNA repair. This compound is particularly valuable in cancer research, where it helps investigate the role of CK2 in tumor growth and survival. By inhibiting CK2, CX-4945 sodium salt can be used to explore potential therapeutic strategies for cancers that rely on CK2 activity. Additionally, it is utilized in studies related to inflammatory diseases and neurodegenerative disorders, where CK2 signaling is implicated. Its application extends to drug discovery efforts aimed at developing targeted therapies for diseases linked to CK2 dysregulation.