Natural cytochalasin derivative. Antiviral. Inhibitor of HIV-1 protease. Antifungal activity.Source:Hypoxylon fragiformeFormula:C30H39NO4 Solubility:DMSO, methanol or dichlormethaneMolecular Weight:~477.6Storage and Stability:Lyophilized powder may be stored at -20°C. Stable for 12 months after receipt at -20°C. Reconstitute with sterile buffer or ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Reconstituted product is stable for 6 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.