Ultra-pure; inhibits actin polymerization. Cytochalasin B is a cell-permeable fungal toxin which binds to the barbed end of actin filaments inhibiting both the association and dissociation of subunits. It causes the disruption of actin filaments and inhibition of actin polymerization. It also inhibits monosaccharide transport across cell membranes. inhibits glucose transport and platelet aggregation. Blocks adenosine-induced apoptotic body formation without affecting activation of endogenous ADP-ribosylation in leukemia HL-60 cells. Formula: C29H37NO5. MW: 479.6. CAS Number: 14930-96-2. Purity: ≥98% (HPLC, TLC). Appearance: White to off-white solid. Solubility: Soluble in methanol or DMSO (20mg/ml). Long Term Storage: -20°C