Apogossypolone (ApoG2) is a semi-synthesized derivative of gossypol which is a nonpeptidic small molecule inhibitor targeting Bcl-2 family proteins with K i values of 35, 25 and 660 nM for Bcl-2, Mcl-1 and Bcl-X L, respectively. Apogossypolone shows antitumor activities, induces cell apoptosis [1] and autophagy [2]. Apogossypolone also has antifungal activity [3].