Mcl1-IN-11 (Compound G) is a selective Mcl-1 inhibitor, less potent at Bcl-2, with Kis of 0.06 and 4.2 μM, respectively[1]. Ki: 0.06 (Mcl-1), 4.2 μM (Bcl-2)[1]

[1]. Wang M, et al. Design, synthesis, and activity evaluation of selective inhibitors of anti-apoptotic Bcl-2 proteins: The effects on the selectivity of the P1 pockets in the active sites. Bioorg Med Chem Lett. 2016 Nov 1;26(21):5207-5211.