Genistein (Standard) is the certified analytical standard of Genistein intended for research and analytical applications, and Genistein, a soy-derived isoflavone, functions as a broad-spectrum tyrosine kinase inhibitor including activity against EGFR, exerting chemotherapeutic effects across multiple cancer types by modulating apoptosis, regulating cell cycle progression, inhibiting angiogenesis, and suppressing metastatic processes in oncology research models.