ELR-510444 is a potent microtube disruptor with potential anticancer activity. It displays potent microtubule-disrupting activity, causing a loss of cellular microtubules and the formation of aberrant mitotic spindles and leading to mitotic arrest and apoptosis of cancer cells. ELR-510444 potently inhibits cell proliferation with an IC50 value of 30.9 nM in MDA-MB-231 cells, inhibits the rate and extent of purified tubulin assembly, and displaces colchicine from tubulin, indicating that the drug directly interacts with tubulin at the colchicine-binding site. MW: 368.5. Purity ≥98% by HPLC