Stable analog of pifithrin-α (Prod. No. BML-GR325), with biological properties similar to its parent compound, but with reduced cytotoxicity. Inhibitor of p53. Reversibly inhibits p53-dependent transactivation of p53-responsive genes and reversibly blocks p53-mediated apoptosis. Potent STAT6 transcriptional inhibitor. Increases apoptosis in target cells when used in combination with antimicrotubule agents.