Batabulin is a covalent microtubule-targeting antitumor reagent for laboratory research. It selectively binds a subset of β-tubulin isotypes, disrupts microtubule polymerization, alters cell morphology, and can induce cell-cycle arrest and apoptosis. Supplied for research use only. Molecular formula C13H7F6NO3S, MW 371.26, CAS 195533-53-0.