Fig. 2From: Cytotoxicity of Plumbagin, Rapanone and 12 other naturally occurring Quinones from Kenyan Flora towards human carcinoma cellsEffects of plumbagin (4), rapanone (9), and doxorubicin on cell cycle distribution in MCF-7 cells. IC50 values were 0.06 μM (4), 16.94 (9) and 0.35 μM (doxorubicin)Back to article page