NMK-TD-100 is a microtubule modulating agent with anti-proliferative activity by disrupting microtubule functions through tubulin binding. NMK-TD-100 blocks mitosis and induces apoptosis in HeLa cells by binding to tubulin. Polymerization of tissue purified tubulin into microtubules was inhibited by NMK-TD-100 with an IC50 value of 17.5±0.35 µM.