MDA-MB-435: IC50 = 10 µM (human breast cancer cell lines); MDA-MB-231: IC50 = 8.8 µM (human breast cancer cell lines); Wt-MCF7: IC50 = 7 µM (human breast cancer cell lines); MCF-10A: IC50 = 75 µM (human normal breast cell lines); MCF-12A: IC50 = 63 µM (human normal breast cell lines)