Steroidal antibiotic. Belongs to the Viridin family, including Wortmannin. Antifungal. Phytotoxin. Shows necrotic activity on plants. Phosphatidylinositol 3-kinase (PI3K) inhibitor.Storage and Stability:Short-term Storage: +4°CLong-term Storage: -20°CStable for at least 3 years after receipt when stored at -20°C.