– Transketolase-IN-4 is a potent transketolase inhibitor (IC50=3.9 ?M). Transketolase-IN-4 inhibits tumor cell proliferation of SW620, LS174T, and MIA PaCa-2. Transketolase-IN-4 is a possible Mycobacterium tuberculosis DXS inhibitor, with an IC50 value of 114.1 ?M.