福他布林抑制劑Fosbretabulin (Combretastatin A4 Phosphate (CA4P)) Disodium, a water-soluble prodrug of Combretastatin A4 (CA4), is a microtubule-targeting agent that binds β-tubulin (Kd: 0.4 μM). Fosbretabulin Disodium inhibits the polymerization of tubulin (IC50