Used as a research compound in cancer studies due to its ability to inhibit STAT3, a protein involved in tumor growth and survival. Shows potential in suppressing the proliferation of various cancer cell lines, particularly in breast, prostate, and leukemia models. Investigated for its role in inducing apoptosis and blocking signaling pathways that support cancer progression. Also serves as a lead compound for developing more potent STAT3 inhibitors. Not used clinically; primarily limited to laboratory and preclinical research.